<?xml version="1.0" encoding="utf-8"?><testsuites><testsuite name="pytest" errors="0" failures="2" skipped="3" tests="45" time="5739.462" timestamp="2026-07-06T20:47:08.820109" hostname="kserve-group-test-cz7hd-e2e-llm-inference-service-pod"><testcase classname="" name="explainer.test_art_explainer" time="0.000"><skipped message="collection skipped">('/workspace/source/test/e2e/explainer/test_art_explainer.py', 38, 'Skipped: ODH does not support art explainer at the moment')</skipped></testcase><testcase classname="" name="predictor.test_grpc" time="0.000"><skipped message="collection skipped">('/workspace/source/test/e2e/predictor/test_grpc.py', 35, 'Skipped: Not testable in ODH at the moment')</skipped></testcase><testcase classname="" name="predictor.test_torchserve" time="0.000"><skipped message="collection skipped">('/workspace/source/test/e2e/predictor/test_torchserve.py', 34, 'Skipped: ODH does not support torchserve at the moment')</skipped></testcase><testcase classname="llmisvc.test_gateway_section_name" name="test_gateway_section_name_propagation[cluster_single_node-cluster_cpu-with-section-name]" time="35.626" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-scheduler-with-precise-prefix-cache-inline-config-workload-llmd-simulator-kvcache]" time="132.360" /><testcase classname="llmisvc.test_gateway_section_name" name="test_gateway_section_name_propagation[cluster_single_node-cluster_cpu-without-section-name]" time="32.190" /><testcase classname="llmisvc.test_llm_auth" name="test_llm_auth_enabled_requires_token[cluster_cpu-cluster_single_node-auth-enabled-default]" time="199.134" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-workload-llmd-simulator0]" time="58.240" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-workload-llmd-simulator1]" time="191.077" /><testcase classname="llmisvc.test_llm_auth" name="test_llm_auth_invalid_token_rejected[cluster_cpu-cluster_single_node-auth-invalid-token]" time="164.915" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-workload-llmd-simulator2]" time="173.279" /><testcase classname="llmisvc.test_llm_auth" name="test_llm_auth_disabled_no_token_required[cluster_cpu-cluster_single_node-auth-disabled]" time="181.315" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-workload-single-cpu-model-fb-opt-125m-with-lora-hf0]" time="164.168" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-with-gateway-ref-router-with-managed-route-model-fb-opt-125m-workload-llmd-simulator]" time="489.061" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-workload-single-cpu-model-fb-opt-125m-with-lora-hf1]" time="133.561" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-workload-single-cpu-model-pvc]" time="198.795" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-workload-pd-cpu-model-pvc]" time="223.979" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-workload-single-cpu-model-fb-opt-125m]" time="192.814" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_multi_node-router-managed-workload-simulated-dp-ep-cpu-model-pvc]" time="243.428" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-custom-route-timeout-scheduler-managed-workload-single-cpu-model-fb-opt-125m]" time="202.804" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-with-refs-scheduler-managed-workload-single-cpu-model-fb-opt-125m]" time="185.634" /><testcase classname="llmisvc.test_llm_inference_service_conversion.TestLLMInferenceServiceConversion" name="test_v1alpha1_to_v1alpha2_conversion" time="0.154" /><testcase classname="llmisvc.test_llm_inference_service_conversion.TestLLMInferenceServiceConversion" name="test_v1alpha2_to_v1alpha1_conversion" time="0.127" /><testcase classname="llmisvc.test_llm_inference_service_conversion.TestLLMInferenceServiceConversion" name="test_criticality_preservation_via_annotations" time="0.157" /><testcase classname="llmisvc.test_llm_inference_service_conversion.TestLLMInferenceServiceConversion" name="test_lora_criticality_preservation" time="0.192" /><testcase classname="llmisvc.test_llm_inference_service_conversion.TestLLMInferenceServiceConversion" name="test_round_trip_conversion_preserves_fields" time="0.198" /><testcase classname="llmisvc.test_llm_inference_service_stop" name="test_llm_stop_feature[cluster_cpu-cluster_single_node-router-managed-workload-single-cpu-model-fb-opt-125m]" time="430.367" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-workload-pd-cpu-model-fb-opt-125m]" time="266.838" /><testcase classname="llmisvc.test_llm_lora_adapters" name="test_llm_with_lora_adapters[cluster_cpu-single-lora-adapter-hf]" time="926.991" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-custom-route-timeout-pd-scheduler-managed-workload-pd-cpu-model-fb-opt-125m]" time="1304.007" /><testcase classname="llmisvc.test_llm_lora_adapters" name="test_llm_with_lora_adapters[cluster_cpu-multiple-lora-adapters]" time="1026.203"><failure message="requests.exceptions.ConnectionError: HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Max retries exceeded with url: /kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions (Caused by ReadTimeoutError(&quot;HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)&quot;))">self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
conn = &lt;HTTPConnection(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80) at 0x7fbb69224bd0&gt;
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
body = b'{"model": "facebook/opt-125m", "prompt": "Explain machine learning in simple terms.", "max_tokens": 100}'
headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '104', 'Content-Type': 'application/json'}
retries = Retry(total=0, connect=None, read=None, redirect=None, status=None)
timeout = Timeout(connect=60, read=60, total=None), chunked = False
response_conn = &lt;HTTPConnection(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80) at 0x7fbb69224bd0&gt;
preload_content = False, decode_content = False, enforce_content_length = True

    def _make_request(
        self,
        conn: BaseHTTPConnection,
        method: str,
        url: str,
        body: _TYPE_BODY | None = None,
        headers: typing.Mapping[str, str] | None = None,
        retries: Retry | None = None,
        timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT,
        chunked: bool = False,
        response_conn: BaseHTTPConnection | None = None,
        preload_content: bool = True,
        decode_content: bool = True,
        enforce_content_length: bool = True,
    ) -&gt; BaseHTTPResponse:
        """
        Perform a request on a given urllib connection object taken from our
        pool.
    
        :param conn:
            a connection from one of our connection pools
    
        :param method:
            HTTP request method (such as GET, POST, PUT, etc.)
    
        :param url:
            The URL to perform the request on.
    
        :param body:
            Data to send in the request body, either :class:`str`, :class:`bytes`,
            an iterable of :class:`str`/:class:`bytes`, or a file-like object.
    
        :param headers:
            Dictionary of custom headers to send, such as User-Agent,
            If-None-Match, etc. If None, pool headers are used. If provided,
            these headers completely replace any pool-specific headers.
    
        :param retries:
            Configure the number of retries to allow before raising a
            :class:`~urllib3.exceptions.MaxRetryError` exception.
    
            Pass ``None`` to retry until you receive a response. Pass a
            :class:`~urllib3.util.retry.Retry` object for fine-grained control
            over different types of retries.
            Pass an integer number to retry connection errors that many times,
            but no other types of errors. Pass zero to never retry.
    
            If ``False``, then retries are disabled and any exception is raised
            immediately. Also, instead of raising a MaxRetryError on redirects,
            the redirect response will be returned.
    
        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
        :param timeout:
            If specified, overrides the default timeout for this one
            request. It may be a float (in seconds) or an instance of
            :class:`urllib3.util.Timeout`.
    
        :param chunked:
            If True, urllib3 will send the body using chunked transfer
            encoding. Otherwise, urllib3 will send the body using the standard
            content-length form. Defaults to False.
    
        :param response_conn:
            Set this to ``None`` if you will handle releasing the connection or
            set the connection to have the response release it.
    
        :param preload_content:
          If True, the response's body will be preloaded during construction.
    
        :param decode_content:
            If True, will attempt to decode the body based on the
            'content-encoding' header.
    
        :param enforce_content_length:
            Enforce content length checking. Body returned by server must match
            value of Content-Length header, if present. Otherwise, raise error.
        """
        self.num_requests += 1
    
        timeout_obj = self._get_timeout(timeout)
        timeout_obj.start_connect()
        conn.timeout = Timeout.resolve_default_timeout(timeout_obj.connect_timeout)
    
        try:
            # Trigger any extra validation we need to do.
            try:
                self._validate_conn(conn)
            except (SocketTimeout, BaseSSLError) as e:
                self._raise_timeout(err=e, url=url, timeout_value=conn.timeout)
                raise
    
        # _validate_conn() starts the connection to an HTTPS proxy
        # so we need to wrap errors with 'ProxyError' here too.
        except (
            OSError,
            NewConnectionError,
            TimeoutError,
            BaseSSLError,
            CertificateError,
            SSLError,
        ) as e:
            new_e: Exception = e
            if isinstance(e, (BaseSSLError, CertificateError)):
                new_e = SSLError(e)
            # If the connection didn't successfully connect to it's proxy
            # then there
            if isinstance(
                new_e, (OSError, NewConnectionError, TimeoutError, SSLError)
            ) and (conn and conn.proxy and not conn.has_connected_to_proxy):
                new_e = _wrap_proxy_error(new_e, conn.proxy.scheme)
            raise new_e
    
        # conn.request() calls http.client.*.request, not the method in
        # urllib3.request. It also calls makefile (recv) on the socket.
        try:
            conn.request(
                method,
                url,
                body=body,
                headers=headers,
                chunked=chunked,
                preload_content=preload_content,
                decode_content=decode_content,
                enforce_content_length=enforce_content_length,
            )
    
        # We are swallowing BrokenPipeError (errno.EPIPE) since the server is
        # legitimately able to close the connection after sending a valid response.
        # With this behaviour, the received response is still readable.
        except BrokenPipeError:
            pass
        except OSError as e:
            # MacOS/Linux
            # EPROTOTYPE and ECONNRESET are needed on macOS
            # https://erickt.github.io/blog/2014/11/19/adventures-in-debugging-a-potential-osx-kernel-bug/
            # Condition changed later to emit ECONNRESET instead of only EPROTOTYPE.
            if e.errno != errno.EPROTOTYPE and e.errno != errno.ECONNRESET:
                raise
    
        # Reset the timeout for the recv() on the socket
        read_timeout = timeout_obj.read_timeout
    
        if not conn.is_closed:
            # In Python 3 socket.py will catch EAGAIN and return None when you
            # try and read into the file pointer created by http.client, which
            # instead raises a BadStatusLine exception. Instead of catching
            # the exception and assuming all BadStatusLine exceptions are read
            # timeouts, check for a zero timeout before making the request.
            if read_timeout == 0:
                raise ReadTimeoutError(
                    self, url, f"Read timed out. (read timeout={read_timeout})"
                )
            conn.timeout = read_timeout
    
        # Receive the response from the server
        try:
&gt;           response = conn.getresponse()

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:534: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;HTTPConnection(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80) at 0x7fbb69224bd0&gt;

    def getresponse(  # type: ignore[override]
        self,
    ) -&gt; HTTPResponse:
        """
        Get the response from the server.
    
        If the HTTPConnection is in the correct state, returns an instance of HTTPResponse or of whatever object is returned by the response_class variable.
    
        If a request has not been sent or if a previous response has not be handled, ResponseNotReady is raised. If the HTTP response indicates that the connection should be closed, then it will be closed before the response is returned. When the connection is closed, the underlying socket is closed.
        """
        # Raise the same error as http.client.HTTPConnection
        if self._response_options is None:
            raise ResponseNotReady()
    
        # Reset this attribute for being used again.
        resp_options = self._response_options
        self._response_options = None
    
        # Since the connection's timeout value may have been updated
        # we need to set the timeout on the socket.
        self.sock.settimeout(self.timeout)
    
        # This is needed here to avoid circular import errors
        from .response import HTTPResponse
    
        # Save a reference to the shutdown function before ownership is passed
        # to httplib_response
        # TODO should we implement it everywhere?
        _shutdown = getattr(self.sock, "shutdown", None)
    
        # Get the response from http.client.HTTPConnection
&gt;       httplib_response = super().getresponse()

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connection.py:571: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;HTTPConnection(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80) at 0x7fbb69224bd0&gt;

    def getresponse(self):
        """Get the response from the server.
    
        If the HTTPConnection is in the correct state, returns an
        instance of HTTPResponse or of whatever object is returned by
        the response_class variable.
    
        If a request has not been sent or if a previous response has
        not be handled, ResponseNotReady is raised.  If the HTTP
        response indicates that the connection should be closed, then
        it will be closed before the response is returned.  When the
        connection is closed, the underlying socket is closed.
        """
    
        # if a prior response has been completed, then forget about it.
        if self.__response and self.__response.isclosed():
            self.__response = None
    
        # if a prior response exists, then it must be completed (otherwise, we
        # cannot read this response's header to determine the connection-close
        # behavior)
        #
        # note: if a prior response existed, but was connection-close, then the
        # socket and response were made independent of this HTTPConnection
        # object since a new request requires that we open a whole new
        # connection
        #
        # this means the prior response had one of two states:
        #   1) will_close: this connection was reset and the prior socket and
        #                  response operate independently
        #   2) persistent: the response was retained and we await its
        #                  isclosed() status to become true.
        #
        if self.__state != _CS_REQ_SENT or self.__response:
            raise ResponseNotReady(self.__state)
    
        if self.debuglevel &gt; 0:
            response = self.response_class(self.sock, self.debuglevel,
                                           method=self._method)
        else:
            response = self.response_class(self.sock, method=self._method)
    
        try:
            try:
&gt;               response.begin()

/usr/lib64/python3.11/http/client.py:1395: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;http.client.HTTPResponse object at 0x7fbb692cad40&gt;

    def begin(self):
        if self.headers is not None:
            # we've already started reading the response
            return
    
        # read until we get a non-100 response
        while True:
&gt;           version, status, reason = self._read_status()

/usr/lib64/python3.11/http/client.py:325: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;http.client.HTTPResponse object at 0x7fbb692cad40&gt;

    def _read_status(self):
&gt;       line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")

/usr/lib64/python3.11/http/client.py:286: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;socket.SocketIO object at 0x7fbb692cab90&gt;
b = &lt;memory at 0x7fbb691fa8c0&gt;

    def readinto(self, b):
        """Read up to len(b) bytes into the writable buffer *b* and return
        the number of bytes read.  If the socket is non-blocking and no bytes
        are available, None is returned.
    
        If *b* is non-empty, a 0 return value indicates that the connection
        was shutdown at the other end.
        """
        self._checkClosed()
        self._checkReadable()
        if self._timeout_occurred:
            raise OSError("cannot read from timed out object")
        while True:
            try:
&gt;               return self._sock.recv_into(b)
E               TimeoutError: timed out

/usr/lib64/python3.11/socket.py:718: TimeoutError

The above exception was the direct cause of the following exception:

self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
body = b'{"model": "facebook/opt-125m", "prompt": "Explain machine learning in simple terms.", "max_tokens": 100}'
headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '104', 'Content-Type': 'application/json'}
retries = Retry(total=0, connect=None, read=None, redirect=None, status=None)
redirect = False, assert_same_host = False
timeout = Timeout(connect=60, read=60, total=None), pool_timeout = None
release_conn = False, chunked = False, body_pos = None, preload_content = False
decode_content = False, response_kw = {}
parsed_url = Url(scheme=None, auth=None, host=None, port=None, path='/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions', query=None, fragment=None)
destination_scheme = None, conn = None, release_this_conn = True
http_tunnel_required = False, err = None, clean_exit = False

    def urlopen(  # type: ignore[override]
        self,
        method: str,
        url: str,
        body: _TYPE_BODY | None = None,
        headers: typing.Mapping[str, str] | None = None,
        retries: Retry | bool | int | None = None,
        redirect: bool = True,
        assert_same_host: bool = True,
        timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT,
        pool_timeout: int | None = None,
        release_conn: bool | None = None,
        chunked: bool = False,
        body_pos: _TYPE_BODY_POSITION | None = None,
        preload_content: bool = True,
        decode_content: bool = True,
        **response_kw: typing.Any,
    ) -&gt; BaseHTTPResponse:
        """
        Get a connection from the pool and perform an HTTP request. This is the
        lowest level call for making a request, so you'll need to specify all
        the raw details.
    
        .. note::
    
           More commonly, it's appropriate to use a convenience method
           such as :meth:`request`.
    
        .. note::
    
           `release_conn` will only behave as expected if
           `preload_content=False` because we want to make
           `preload_content=False` the default behaviour someday soon without
           breaking backwards compatibility.
    
        :param method:
            HTTP request method (such as GET, POST, PUT, etc.)
    
        :param url:
            The URL to perform the request on.
    
        :param body:
            Data to send in the request body, either :class:`str`, :class:`bytes`,
            an iterable of :class:`str`/:class:`bytes`, or a file-like object.
    
        :param headers:
            Dictionary of custom headers to send, such as User-Agent,
            If-None-Match, etc. If None, pool headers are used. If provided,
            these headers completely replace any pool-specific headers.
    
        :param retries:
            Configure the number of retries to allow before raising a
            :class:`~urllib3.exceptions.MaxRetryError` exception.
    
            If ``None`` (default) will retry 3 times, see ``Retry.DEFAULT``. Pass a
            :class:`~urllib3.util.retry.Retry` object for fine-grained control
            over different types of retries.
            Pass an integer number to retry connection errors that many times,
            but no other types of errors. Pass zero to never retry.
    
            If ``False``, then retries are disabled and any exception is raised
            immediately. Also, instead of raising a MaxRetryError on redirects,
            the redirect response will be returned.
    
        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
        :param redirect:
            If True, automatically handle redirects (status codes 301, 302,
            303, 307, 308). Each redirect counts as a retry. Disabling retries
            will disable redirect, too.
    
        :param assert_same_host:
            If ``True``, will make sure that the host of the pool requests is
            consistent else will raise HostChangedError. When ``False``, you can
            use the pool on an HTTP proxy and request foreign hosts.
    
        :param timeout:
            If specified, overrides the default timeout for this one
            request. It may be a float (in seconds) or an instance of
            :class:`urllib3.util.Timeout`.
    
        :param pool_timeout:
            If set and the pool is set to block=True, then this method will
            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
            connection is available within the time period.
    
        :param bool preload_content:
            If True, the response's body will be preloaded into memory.
    
        :param bool decode_content:
            If True, will attempt to decode the body based on the
            'content-encoding' header.
    
        :param release_conn:
            If False, then the urlopen call will not release the connection
            back into the pool once a response is received (but will release if
            you read the entire contents of the response such as when
            `preload_content=True`). This is useful if you're not preloading
            the response's content immediately. You will need to call
            ``r.release_conn()`` on the response ``r`` to return the connection
            back into the pool. If None, it takes the value of ``preload_content``
            which defaults to ``True``.
    
        :param bool chunked:
            If True, urllib3 will send the body using chunked transfer
            encoding. Otherwise, urllib3 will send the body using the standard
            content-length form. Defaults to False.
    
        :param int body_pos:
            Position to seek to in file-like body in the event of a retry or
            redirect. Typically this won't need to be set because urllib3 will
            auto-populate the value when needed.
        """
        parsed_url = parse_url(url)
        destination_scheme = parsed_url.scheme
    
        if headers is None:
            headers = self.headers
    
        if not isinstance(retries, Retry):
            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
    
        if release_conn is None:
            release_conn = preload_content
    
        # Check host
        if assert_same_host and not self.is_same_host(url):
            raise HostChangedError(self, url, retries)
    
        # Ensure that the URL we're connecting to is properly encoded
        if url.startswith("/"):
            url = to_str(_encode_target(url))
        else:
            url = to_str(parsed_url.url)
    
        conn = None
    
        # Track whether `conn` needs to be released before
        # returning/raising/recursing. Update this variable if necessary, and
        # leave `release_conn` constant throughout the function. That way, if
        # the function recurses, the original value of `release_conn` will be
        # passed down into the recursive call, and its value will be respected.
        #
        # See issue #651 [1] for details.
        #
        # [1] &lt;https://github.com/urllib3/urllib3/issues/651&gt;
        release_this_conn = release_conn
    
        http_tunnel_required = connection_requires_http_tunnel(
            self.proxy, self.proxy_config, destination_scheme
        )
    
        # Merge the proxy headers. Only done when not using HTTP CONNECT. We
        # have to copy the headers dict so we can safely change it without those
        # changes being reflected in anyone else's copy.
        if not http_tunnel_required:
            headers = headers.copy()  # type: ignore[attr-defined]
            headers.update(self.proxy_headers)  # type: ignore[union-attr]
    
        # Must keep the exception bound to a separate variable or else Python 3
        # complains about UnboundLocalError.
        err = None
    
        # Keep track of whether we cleanly exited the except block. This
        # ensures we do proper cleanup in finally.
        clean_exit = False
    
        # Rewind body position, if needed. Record current position
        # for future rewinds in the event of a redirect/retry.
        body_pos = set_file_position(body, body_pos)
    
        try:
            # Request a connection from the queue.
            timeout_obj = self._get_timeout(timeout)
            conn = self._get_conn(timeout=pool_timeout)
    
            conn.timeout = timeout_obj.connect_timeout  # type: ignore[assignment]
    
            # Is this a closed/new connection that requires CONNECT tunnelling?
            if self.proxy is not None and http_tunnel_required and conn.is_closed:
                try:
                    self._prepare_proxy(conn)
                except (BaseSSLError, OSError, SocketTimeout) as e:
                    self._raise_timeout(
                        err=e, url=self.proxy.url, timeout_value=conn.timeout
                    )
                    raise
    
            # If we're going to release the connection in ``finally:``, then
            # the response doesn't need to know about the connection. Otherwise
            # it will also try to release it and we'll have a double-release
            # mess.
            response_conn = conn if not release_conn else None
    
            # Make the request on the HTTPConnection object
&gt;           response = self._make_request(
                conn,
                method,
                url,
                timeout=timeout_obj,
                body=body,
                headers=headers,
                chunked=chunked,
                retries=retries,
                response_conn=response_conn,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:787: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
conn = &lt;HTTPConnection(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80) at 0x7fbb69224bd0&gt;
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
body = b'{"model": "facebook/opt-125m", "prompt": "Explain machine learning in simple terms.", "max_tokens": 100}'
headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '104', 'Content-Type': 'application/json'}
retries = Retry(total=0, connect=None, read=None, redirect=None, status=None)
timeout = Timeout(connect=60, read=60, total=None), chunked = False
response_conn = &lt;HTTPConnection(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80) at 0x7fbb69224bd0&gt;
preload_content = False, decode_content = False, enforce_content_length = True

    def _make_request(
        self,
        conn: BaseHTTPConnection,
        method: str,
        url: str,
        body: _TYPE_BODY | None = None,
        headers: typing.Mapping[str, str] | None = None,
        retries: Retry | None = None,
        timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT,
        chunked: bool = False,
        response_conn: BaseHTTPConnection | None = None,
        preload_content: bool = True,
        decode_content: bool = True,
        enforce_content_length: bool = True,
    ) -&gt; BaseHTTPResponse:
        """
        Perform a request on a given urllib connection object taken from our
        pool.
    
        :param conn:
            a connection from one of our connection pools
    
        :param method:
            HTTP request method (such as GET, POST, PUT, etc.)
    
        :param url:
            The URL to perform the request on.
    
        :param body:
            Data to send in the request body, either :class:`str`, :class:`bytes`,
            an iterable of :class:`str`/:class:`bytes`, or a file-like object.
    
        :param headers:
            Dictionary of custom headers to send, such as User-Agent,
            If-None-Match, etc. If None, pool headers are used. If provided,
            these headers completely replace any pool-specific headers.
    
        :param retries:
            Configure the number of retries to allow before raising a
            :class:`~urllib3.exceptions.MaxRetryError` exception.
    
            Pass ``None`` to retry until you receive a response. Pass a
            :class:`~urllib3.util.retry.Retry` object for fine-grained control
            over different types of retries.
            Pass an integer number to retry connection errors that many times,
            but no other types of errors. Pass zero to never retry.
    
            If ``False``, then retries are disabled and any exception is raised
            immediately. Also, instead of raising a MaxRetryError on redirects,
            the redirect response will be returned.
    
        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
        :param timeout:
            If specified, overrides the default timeout for this one
            request. It may be a float (in seconds) or an instance of
            :class:`urllib3.util.Timeout`.
    
        :param chunked:
            If True, urllib3 will send the body using chunked transfer
            encoding. Otherwise, urllib3 will send the body using the standard
            content-length form. Defaults to False.
    
        :param response_conn:
            Set this to ``None`` if you will handle releasing the connection or
            set the connection to have the response release it.
    
        :param preload_content:
          If True, the response's body will be preloaded during construction.
    
        :param decode_content:
            If True, will attempt to decode the body based on the
            'content-encoding' header.
    
        :param enforce_content_length:
            Enforce content length checking. Body returned by server must match
            value of Content-Length header, if present. Otherwise, raise error.
        """
        self.num_requests += 1
    
        timeout_obj = self._get_timeout(timeout)
        timeout_obj.start_connect()
        conn.timeout = Timeout.resolve_default_timeout(timeout_obj.connect_timeout)
    
        try:
            # Trigger any extra validation we need to do.
            try:
                self._validate_conn(conn)
            except (SocketTimeout, BaseSSLError) as e:
                self._raise_timeout(err=e, url=url, timeout_value=conn.timeout)
                raise
    
        # _validate_conn() starts the connection to an HTTPS proxy
        # so we need to wrap errors with 'ProxyError' here too.
        except (
            OSError,
            NewConnectionError,
            TimeoutError,
            BaseSSLError,
            CertificateError,
            SSLError,
        ) as e:
            new_e: Exception = e
            if isinstance(e, (BaseSSLError, CertificateError)):
                new_e = SSLError(e)
            # If the connection didn't successfully connect to it's proxy
            # then there
            if isinstance(
                new_e, (OSError, NewConnectionError, TimeoutError, SSLError)
            ) and (conn and conn.proxy and not conn.has_connected_to_proxy):
                new_e = _wrap_proxy_error(new_e, conn.proxy.scheme)
            raise new_e
    
        # conn.request() calls http.client.*.request, not the method in
        # urllib3.request. It also calls makefile (recv) on the socket.
        try:
            conn.request(
                method,
                url,
                body=body,
                headers=headers,
                chunked=chunked,
                preload_content=preload_content,
                decode_content=decode_content,
                enforce_content_length=enforce_content_length,
            )
    
        # We are swallowing BrokenPipeError (errno.EPIPE) since the server is
        # legitimately able to close the connection after sending a valid response.
        # With this behaviour, the received response is still readable.
        except BrokenPipeError:
            pass
        except OSError as e:
            # MacOS/Linux
            # EPROTOTYPE and ECONNRESET are needed on macOS
            # https://erickt.github.io/blog/2014/11/19/adventures-in-debugging-a-potential-osx-kernel-bug/
            # Condition changed later to emit ECONNRESET instead of only EPROTOTYPE.
            if e.errno != errno.EPROTOTYPE and e.errno != errno.ECONNRESET:
                raise
    
        # Reset the timeout for the recv() on the socket
        read_timeout = timeout_obj.read_timeout
    
        if not conn.is_closed:
            # In Python 3 socket.py will catch EAGAIN and return None when you
            # try and read into the file pointer created by http.client, which
            # instead raises a BadStatusLine exception. Instead of catching
            # the exception and assuming all BadStatusLine exceptions are read
            # timeouts, check for a zero timeout before making the request.
            if read_timeout == 0:
                raise ReadTimeoutError(
                    self, url, f"Read timed out. (read timeout={read_timeout})"
                )
            conn.timeout = read_timeout
    
        # Receive the response from the server
        try:
            response = conn.getresponse()
        except (BaseSSLError, OSError) as e:
&gt;           self._raise_timeout(err=e, url=url, timeout_value=read_timeout)

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:536: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
err = TimeoutError('timed out')
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
timeout_value = 60

    def _raise_timeout(
        self,
        err: BaseSSLError | OSError | SocketTimeout,
        url: str,
        timeout_value: _TYPE_TIMEOUT | None,
    ) -&gt; None:
        """Is the error actually a timeout? Will raise a ReadTimeout or pass"""
    
        if isinstance(err, SocketTimeout):
&gt;           raise ReadTimeoutError(
                self, url, f"Read timed out. (read timeout={timeout_value})"
            ) from err
E           urllib3.exceptions.ReadTimeoutError: HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:367: ReadTimeoutError

The above exception was the direct cause of the following exception:

self = &lt;requests.adapters.HTTPAdapter object at 0x7fbb68f84e50&gt;
request = &lt;PreparedRequest [POST]&gt;, stream = False
timeout = Timeout(connect=60, read=60, total=None), verify = '/tmp/ca.crt'
cert = None, proxies = OrderedDict()

    def send(
        self, request, stream=False, timeout=None, verify=True, cert=None, proxies=None
    ):
        """Sends PreparedRequest object. Returns Response object.
    
        :param request: The :class:`PreparedRequest &lt;PreparedRequest&gt;` being sent.
        :param stream: (optional) Whether to stream the request content.
        :param timeout: (optional) How long to wait for the server to send
            data before giving up, as a float, or a :ref:`(connect timeout,
            read timeout) &lt;timeouts&gt;` tuple.
        :type timeout: float or tuple or urllib3 Timeout object
        :param verify: (optional) Either a boolean, in which case it controls whether
            we verify the server's TLS certificate, or a string, in which case it
            must be a path to a CA bundle to use
        :param cert: (optional) Any user-provided SSL certificate to be trusted.
        :param proxies: (optional) The proxies dictionary to apply to the request.
        :rtype: requests.Response
        """
    
        try:
            conn = self.get_connection_with_tls_context(
                request, verify, proxies=proxies, cert=cert
            )
        except LocationValueError as e:
            raise InvalidURL(e, request=request)
    
        self.cert_verify(conn, request.url, verify, cert)
        url = self.request_url(request, proxies)
        self.add_headers(
            request,
            stream=stream,
            timeout=timeout,
            verify=verify,
            cert=cert,
            proxies=proxies,
        )
    
        chunked = not (request.body is None or "Content-Length" in request.headers)
    
        if isinstance(timeout, tuple):
            try:
                connect, read = timeout
                timeout = TimeoutSauce(connect=connect, read=read)
            except ValueError:
                raise ValueError(
                    f"Invalid timeout {timeout}. Pass a (connect, read) timeout tuple, "
                    f"or a single float to set both timeouts to the same value."
                )
        elif isinstance(timeout, TimeoutSauce):
            pass
        else:
            timeout = TimeoutSauce(connect=timeout, read=timeout)
    
        try:
&gt;           resp = conn.urlopen(
                method=request.method,
                url=url,
                body=request.body,
                headers=request.headers,
                redirect=False,
                assert_same_host=False,
                preload_content=False,
                decode_content=False,
                retries=self.max_retries,
                timeout=timeout,
                chunked=chunked,
            )

../../python/kserve/.venv/lib64/python3.11/site-packages/requests/adapters.py:667: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
body = b'{"model": "facebook/opt-125m", "prompt": "Explain machine learning in simple terms.", "max_tokens": 100}'
headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '104', 'Content-Type': 'application/json'}
retries = Retry(total=7, connect=None, read=None, redirect=None, status=None)
redirect = False, assert_same_host = False
timeout = Timeout(connect=60, read=60, total=None), pool_timeout = None
release_conn = False, chunked = False, body_pos = None, preload_content = False
decode_content = False, response_kw = {}
parsed_url = Url(scheme=None, auth=None, host=None, port=None, path='/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions', query=None, fragment=None)
destination_scheme = None, conn = None, release_this_conn = True
http_tunnel_required = False
err = ReadTimeoutError("HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)")
clean_exit = False

    def urlopen(  # type: ignore[override]
        self,
        method: str,
        url: str,
        body: _TYPE_BODY | None = None,
        headers: typing.Mapping[str, str] | None = None,
        retries: Retry | bool | int | None = None,
        redirect: bool = True,
        assert_same_host: bool = True,
        timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT,
        pool_timeout: int | None = None,
        release_conn: bool | None = None,
        chunked: bool = False,
        body_pos: _TYPE_BODY_POSITION | None = None,
        preload_content: bool = True,
        decode_content: bool = True,
        **response_kw: typing.Any,
    ) -&gt; BaseHTTPResponse:
        """
        Get a connection from the pool and perform an HTTP request. This is the
        lowest level call for making a request, so you'll need to specify all
        the raw details.
    
        .. note::
    
           More commonly, it's appropriate to use a convenience method
           such as :meth:`request`.
    
        .. note::
    
           `release_conn` will only behave as expected if
           `preload_content=False` because we want to make
           `preload_content=False` the default behaviour someday soon without
           breaking backwards compatibility.
    
        :param method:
            HTTP request method (such as GET, POST, PUT, etc.)
    
        :param url:
            The URL to perform the request on.
    
        :param body:
            Data to send in the request body, either :class:`str`, :class:`bytes`,
            an iterable of :class:`str`/:class:`bytes`, or a file-like object.
    
        :param headers:
            Dictionary of custom headers to send, such as User-Agent,
            If-None-Match, etc. If None, pool headers are used. If provided,
            these headers completely replace any pool-specific headers.
    
        :param retries:
            Configure the number of retries to allow before raising a
            :class:`~urllib3.exceptions.MaxRetryError` exception.
    
            If ``None`` (default) will retry 3 times, see ``Retry.DEFAULT``. Pass a
            :class:`~urllib3.util.retry.Retry` object for fine-grained control
            over different types of retries.
            Pass an integer number to retry connection errors that many times,
            but no other types of errors. Pass zero to never retry.
    
            If ``False``, then retries are disabled and any exception is raised
            immediately. Also, instead of raising a MaxRetryError on redirects,
            the redirect response will be returned.
    
        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
        :param redirect:
            If True, automatically handle redirects (status codes 301, 302,
            303, 307, 308). Each redirect counts as a retry. Disabling retries
            will disable redirect, too.
    
        :param assert_same_host:
            If ``True``, will make sure that the host of the pool requests is
            consistent else will raise HostChangedError. When ``False``, you can
            use the pool on an HTTP proxy and request foreign hosts.
    
        :param timeout:
            If specified, overrides the default timeout for this one
            request. It may be a float (in seconds) or an instance of
            :class:`urllib3.util.Timeout`.
    
        :param pool_timeout:
            If set and the pool is set to block=True, then this method will
            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
            connection is available within the time period.
    
        :param bool preload_content:
            If True, the response's body will be preloaded into memory.
    
        :param bool decode_content:
            If True, will attempt to decode the body based on the
            'content-encoding' header.
    
        :param release_conn:
            If False, then the urlopen call will not release the connection
            back into the pool once a response is received (but will release if
            you read the entire contents of the response such as when
            `preload_content=True`). This is useful if you're not preloading
            the response's content immediately. You will need to call
            ``r.release_conn()`` on the response ``r`` to return the connection
            back into the pool. If None, it takes the value of ``preload_content``
            which defaults to ``True``.
    
        :param bool chunked:
            If True, urllib3 will send the body using chunked transfer
            encoding. Otherwise, urllib3 will send the body using the standard
            content-length form. Defaults to False.
    
        :param int body_pos:
            Position to seek to in file-like body in the event of a retry or
            redirect. Typically this won't need to be set because urllib3 will
            auto-populate the value when needed.
        """
        parsed_url = parse_url(url)
        destination_scheme = parsed_url.scheme
    
        if headers is None:
            headers = self.headers
    
        if not isinstance(retries, Retry):
            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
    
        if release_conn is None:
            release_conn = preload_content
    
        # Check host
        if assert_same_host and not self.is_same_host(url):
            raise HostChangedError(self, url, retries)
    
        # Ensure that the URL we're connecting to is properly encoded
        if url.startswith("/"):
            url = to_str(_encode_target(url))
        else:
            url = to_str(parsed_url.url)
    
        conn = None
    
        # Track whether `conn` needs to be released before
        # returning/raising/recursing. Update this variable if necessary, and
        # leave `release_conn` constant throughout the function. That way, if
        # the function recurses, the original value of `release_conn` will be
        # passed down into the recursive call, and its value will be respected.
        #
        # See issue #651 [1] for details.
        #
        # [1] &lt;https://github.com/urllib3/urllib3/issues/651&gt;
        release_this_conn = release_conn
    
        http_tunnel_required = connection_requires_http_tunnel(
            self.proxy, self.proxy_config, destination_scheme
        )
    
        # Merge the proxy headers. Only done when not using HTTP CONNECT. We
        # have to copy the headers dict so we can safely change it without those
        # changes being reflected in anyone else's copy.
        if not http_tunnel_required:
            headers = headers.copy()  # type: ignore[attr-defined]
            headers.update(self.proxy_headers)  # type: ignore[union-attr]
    
        # Must keep the exception bound to a separate variable or else Python 3
        # complains about UnboundLocalError.
        err = None
    
        # Keep track of whether we cleanly exited the except block. This
        # ensures we do proper cleanup in finally.
        clean_exit = False
    
        # Rewind body position, if needed. Record current position
        # for future rewinds in the event of a redirect/retry.
        body_pos = set_file_position(body, body_pos)
    
        try:
            # Request a connection from the queue.
            timeout_obj = self._get_timeout(timeout)
            conn = self._get_conn(timeout=pool_timeout)
    
            conn.timeout = timeout_obj.connect_timeout  # type: ignore[assignment]
    
            # Is this a closed/new connection that requires CONNECT tunnelling?
            if self.proxy is not None and http_tunnel_required and conn.is_closed:
                try:
                    self._prepare_proxy(conn)
                except (BaseSSLError, OSError, SocketTimeout) as e:
                    self._raise_timeout(
                        err=e, url=self.proxy.url, timeout_value=conn.timeout
                    )
                    raise
    
            # If we're going to release the connection in ``finally:``, then
            # the response doesn't need to know about the connection. Otherwise
            # it will also try to release it and we'll have a double-release
            # mess.
            response_conn = conn if not release_conn else None
    
            # Make the request on the HTTPConnection object
            response = self._make_request(
                conn,
                method,
                url,
                timeout=timeout_obj,
                body=body,
                headers=headers,
                chunked=chunked,
                retries=retries,
                response_conn=response_conn,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )
    
            # Everything went great!
            clean_exit = True
    
        except EmptyPoolError:
            # Didn't get a connection from the pool, no need to clean up
            clean_exit = True
            release_this_conn = False
            raise
    
        except (
            TimeoutError,
            HTTPException,
            OSError,
            ProtocolError,
            BaseSSLError,
            SSLError,
            CertificateError,
            ProxyError,
        ) as e:
            # Discard the connection for these exceptions. It will be
            # replaced during the next _get_conn() call.
            clean_exit = False
            new_e: Exception = e
            if isinstance(e, (BaseSSLError, CertificateError)):
                new_e = SSLError(e)
            if isinstance(
                new_e,
                (
                    OSError,
                    NewConnectionError,
                    TimeoutError,
                    SSLError,
                    HTTPException,
                ),
            ) and (conn and conn.proxy and not conn.has_connected_to_proxy):
                new_e = _wrap_proxy_error(new_e, conn.proxy.scheme)
            elif isinstance(new_e, (OSError, HTTPException)):
                new_e = ProtocolError("Connection aborted.", new_e)
    
            retries = retries.increment(
                method, url, error=new_e, _pool=self, _stacktrace=sys.exc_info()[2]
            )
            retries.sleep()
    
            # Keep track of the error for the retry warning.
            err = e
    
        finally:
            if not clean_exit:
                # We hit some kind of exception, handled or otherwise. We need
                # to throw the connection away unless explicitly told not to.
                # Close the connection, set the variable to None, and make sure
                # we put the None back in the pool to avoid leaking it.
                if conn:
                    conn.close()
                    conn = None
                release_this_conn = True
    
            if release_this_conn:
                # Put the connection back to be reused. If the connection is
                # expired then it will be None, which will get replaced with a
                # fresh connection during _get_conn.
                self._put_conn(conn)
    
        if not conn:
            # Try again
            log.warning(
                "Retrying (%r) after connection broken by '%r': %s", retries, err, url
            )
&gt;           return self.urlopen(
                method,
                url,
                body,
                headers,
                retries,
                redirect,
                assert_same_host,
                timeout=timeout,
                pool_timeout=pool_timeout,
                release_conn=release_conn,
                chunked=chunked,
                body_pos=body_pos,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:871: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
body = b'{"model": "facebook/opt-125m", "prompt": "Explain machine learning in simple terms.", "max_tokens": 100}'
headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '104', 'Content-Type': 'application/json'}
retries = Retry(total=6, connect=None, read=None, redirect=None, status=None)
redirect = False, assert_same_host = False
timeout = Timeout(connect=60, read=60, total=None), pool_timeout = None
release_conn = False, chunked = False, body_pos = None, preload_content = False
decode_content = False, response_kw = {}
parsed_url = Url(scheme=None, auth=None, host=None, port=None, path='/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions', query=None, fragment=None)
destination_scheme = None, conn = None, release_this_conn = True
http_tunnel_required = False
err = ReadTimeoutError("HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)")
clean_exit = False

    def urlopen(  # type: ignore[override]
        self,
        method: str,
        url: str,
        body: _TYPE_BODY | None = None,
        headers: typing.Mapping[str, str] | None = None,
        retries: Retry | bool | int | None = None,
        redirect: bool = True,
        assert_same_host: bool = True,
        timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT,
        pool_timeout: int | None = None,
        release_conn: bool | None = None,
        chunked: bool = False,
        body_pos: _TYPE_BODY_POSITION | None = None,
        preload_content: bool = True,
        decode_content: bool = True,
        **response_kw: typing.Any,
    ) -&gt; BaseHTTPResponse:
        """
        Get a connection from the pool and perform an HTTP request. This is the
        lowest level call for making a request, so you'll need to specify all
        the raw details.
    
        .. note::
    
           More commonly, it's appropriate to use a convenience method
           such as :meth:`request`.
    
        .. note::
    
           `release_conn` will only behave as expected if
           `preload_content=False` because we want to make
           `preload_content=False` the default behaviour someday soon without
           breaking backwards compatibility.
    
        :param method:
            HTTP request method (such as GET, POST, PUT, etc.)
    
        :param url:
            The URL to perform the request on.
    
        :param body:
            Data to send in the request body, either :class:`str`, :class:`bytes`,
            an iterable of :class:`str`/:class:`bytes`, or a file-like object.
    
        :param headers:
            Dictionary of custom headers to send, such as User-Agent,
            If-None-Match, etc. If None, pool headers are used. If provided,
            these headers completely replace any pool-specific headers.
    
        :param retries:
            Configure the number of retries to allow before raising a
            :class:`~urllib3.exceptions.MaxRetryError` exception.
    
            If ``None`` (default) will retry 3 times, see ``Retry.DEFAULT``. Pass a
            :class:`~urllib3.util.retry.Retry` object for fine-grained control
            over different types of retries.
            Pass an integer number to retry connection errors that many times,
            but no other types of errors. Pass zero to never retry.
    
            If ``False``, then retries are disabled and any exception is raised
            immediately. Also, instead of raising a MaxRetryError on redirects,
            the redirect response will be returned.
    
        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
        :param redirect:
            If True, automatically handle redirects (status codes 301, 302,
            303, 307, 308). Each redirect counts as a retry. Disabling retries
            will disable redirect, too.
    
        :param assert_same_host:
            If ``True``, will make sure that the host of the pool requests is
            consistent else will raise HostChangedError. When ``False``, you can
            use the pool on an HTTP proxy and request foreign hosts.
    
        :param timeout:
            If specified, overrides the default timeout for this one
            request. It may be a float (in seconds) or an instance of
            :class:`urllib3.util.Timeout`.
    
        :param pool_timeout:
            If set and the pool is set to block=True, then this method will
            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
            connection is available within the time period.
    
        :param bool preload_content:
            If True, the response's body will be preloaded into memory.
    
        :param bool decode_content:
            If True, will attempt to decode the body based on the
            'content-encoding' header.
    
        :param release_conn:
            If False, then the urlopen call will not release the connection
            back into the pool once a response is received (but will release if
            you read the entire contents of the response such as when
            `preload_content=True`). This is useful if you're not preloading
            the response's content immediately. You will need to call
            ``r.release_conn()`` on the response ``r`` to return the connection
            back into the pool. If None, it takes the value of ``preload_content``
            which defaults to ``True``.
    
        :param bool chunked:
            If True, urllib3 will send the body using chunked transfer
            encoding. Otherwise, urllib3 will send the body using the standard
            content-length form. Defaults to False.
    
        :param int body_pos:
            Position to seek to in file-like body in the event of a retry or
            redirect. Typically this won't need to be set because urllib3 will
            auto-populate the value when needed.
        """
        parsed_url = parse_url(url)
        destination_scheme = parsed_url.scheme
    
        if headers is None:
            headers = self.headers
    
        if not isinstance(retries, Retry):
            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
    
        if release_conn is None:
            release_conn = preload_content
    
        # Check host
        if assert_same_host and not self.is_same_host(url):
            raise HostChangedError(self, url, retries)
    
        # Ensure that the URL we're connecting to is properly encoded
        if url.startswith("/"):
            url = to_str(_encode_target(url))
        else:
            url = to_str(parsed_url.url)
    
        conn = None
    
        # Track whether `conn` needs to be released before
        # returning/raising/recursing. Update this variable if necessary, and
        # leave `release_conn` constant throughout the function. That way, if
        # the function recurses, the original value of `release_conn` will be
        # passed down into the recursive call, and its value will be respected.
        #
        # See issue #651 [1] for details.
        #
        # [1] &lt;https://github.com/urllib3/urllib3/issues/651&gt;
        release_this_conn = release_conn
    
        http_tunnel_required = connection_requires_http_tunnel(
            self.proxy, self.proxy_config, destination_scheme
        )
    
        # Merge the proxy headers. Only done when not using HTTP CONNECT. We
        # have to copy the headers dict so we can safely change it without those
        # changes being reflected in anyone else's copy.
        if not http_tunnel_required:
            headers = headers.copy()  # type: ignore[attr-defined]
            headers.update(self.proxy_headers)  # type: ignore[union-attr]
    
        # Must keep the exception bound to a separate variable or else Python 3
        # complains about UnboundLocalError.
        err = None
    
        # Keep track of whether we cleanly exited the except block. This
        # ensures we do proper cleanup in finally.
        clean_exit = False
    
        # Rewind body position, if needed. Record current position
        # for future rewinds in the event of a redirect/retry.
        body_pos = set_file_position(body, body_pos)
    
        try:
            # Request a connection from the queue.
            timeout_obj = self._get_timeout(timeout)
            conn = self._get_conn(timeout=pool_timeout)
    
            conn.timeout = timeout_obj.connect_timeout  # type: ignore[assignment]
    
            # Is this a closed/new connection that requires CONNECT tunnelling?
            if self.proxy is not None and http_tunnel_required and conn.is_closed:
                try:
                    self._prepare_proxy(conn)
                except (BaseSSLError, OSError, SocketTimeout) as e:
                    self._raise_timeout(
                        err=e, url=self.proxy.url, timeout_value=conn.timeout
                    )
                    raise
    
            # If we're going to release the connection in ``finally:``, then
            # the response doesn't need to know about the connection. Otherwise
            # it will also try to release it and we'll have a double-release
            # mess.
            response_conn = conn if not release_conn else None
    
            # Make the request on the HTTPConnection object
            response = self._make_request(
                conn,
                method,
                url,
                timeout=timeout_obj,
                body=body,
                headers=headers,
                chunked=chunked,
                retries=retries,
                response_conn=response_conn,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )
    
            # Everything went great!
            clean_exit = True
    
        except EmptyPoolError:
            # Didn't get a connection from the pool, no need to clean up
            clean_exit = True
            release_this_conn = False
            raise
    
        except (
            TimeoutError,
            HTTPException,
            OSError,
            ProtocolError,
            BaseSSLError,
            SSLError,
            CertificateError,
            ProxyError,
        ) as e:
            # Discard the connection for these exceptions. It will be
            # replaced during the next _get_conn() call.
            clean_exit = False
            new_e: Exception = e
            if isinstance(e, (BaseSSLError, CertificateError)):
                new_e = SSLError(e)
            if isinstance(
                new_e,
                (
                    OSError,
                    NewConnectionError,
                    TimeoutError,
                    SSLError,
                    HTTPException,
                ),
            ) and (conn and conn.proxy and not conn.has_connected_to_proxy):
                new_e = _wrap_proxy_error(new_e, conn.proxy.scheme)
            elif isinstance(new_e, (OSError, HTTPException)):
                new_e = ProtocolError("Connection aborted.", new_e)
    
            retries = retries.increment(
                method, url, error=new_e, _pool=self, _stacktrace=sys.exc_info()[2]
            )
            retries.sleep()
    
            # Keep track of the error for the retry warning.
            err = e
    
        finally:
            if not clean_exit:
                # We hit some kind of exception, handled or otherwise. We need
                # to throw the connection away unless explicitly told not to.
                # Close the connection, set the variable to None, and make sure
                # we put the None back in the pool to avoid leaking it.
                if conn:
                    conn.close()
                    conn = None
                release_this_conn = True
    
            if release_this_conn:
                # Put the connection back to be reused. If the connection is
                # expired then it will be None, which will get replaced with a
                # fresh connection during _get_conn.
                self._put_conn(conn)
    
        if not conn:
            # Try again
            log.warning(
                "Retrying (%r) after connection broken by '%r': %s", retries, err, url
            )
&gt;           return self.urlopen(
                method,
                url,
                body,
                headers,
                retries,
                redirect,
                assert_same_host,
                timeout=timeout,
                pool_timeout=pool_timeout,
                release_conn=release_conn,
                chunked=chunked,
                body_pos=body_pos,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:871: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
body = b'{"model": "facebook/opt-125m", "prompt": "Explain machine learning in simple terms.", "max_tokens": 100}'
headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '104', 'Content-Type': 'application/json'}
retries = Retry(total=5, connect=None, read=None, redirect=None, status=None)
redirect = False, assert_same_host = False
timeout = Timeout(connect=60, read=60, total=None), pool_timeout = None
release_conn = False, chunked = False, body_pos = None, preload_content = False
decode_content = False, response_kw = {}
parsed_url = Url(scheme=None, auth=None, host=None, port=None, path='/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions', query=None, fragment=None)
destination_scheme = None, conn = None, release_this_conn = True
http_tunnel_required = False
err = ReadTimeoutError("HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)")
clean_exit = False

    def urlopen(  # type: ignore[override]
        self,
        method: str,
        url: str,
        body: _TYPE_BODY | None = None,
        headers: typing.Mapping[str, str] | None = None,
        retries: Retry | bool | int | None = None,
        redirect: bool = True,
        assert_same_host: bool = True,
        timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT,
        pool_timeout: int | None = None,
        release_conn: bool | None = None,
        chunked: bool = False,
        body_pos: _TYPE_BODY_POSITION | None = None,
        preload_content: bool = True,
        decode_content: bool = True,
        **response_kw: typing.Any,
    ) -&gt; BaseHTTPResponse:
        """
        Get a connection from the pool and perform an HTTP request. This is the
        lowest level call for making a request, so you'll need to specify all
        the raw details.
    
        .. note::
    
           More commonly, it's appropriate to use a convenience method
           such as :meth:`request`.
    
        .. note::
    
           `release_conn` will only behave as expected if
           `preload_content=False` because we want to make
           `preload_content=False` the default behaviour someday soon without
           breaking backwards compatibility.
    
        :param method:
            HTTP request method (such as GET, POST, PUT, etc.)
    
        :param url:
            The URL to perform the request on.
    
        :param body:
            Data to send in the request body, either :class:`str`, :class:`bytes`,
            an iterable of :class:`str`/:class:`bytes`, or a file-like object.
    
        :param headers:
            Dictionary of custom headers to send, such as User-Agent,
            If-None-Match, etc. If None, pool headers are used. If provided,
            these headers completely replace any pool-specific headers.
    
        :param retries:
            Configure the number of retries to allow before raising a
            :class:`~urllib3.exceptions.MaxRetryError` exception.
    
            If ``None`` (default) will retry 3 times, see ``Retry.DEFAULT``. Pass a
            :class:`~urllib3.util.retry.Retry` object for fine-grained control
            over different types of retries.
            Pass an integer number to retry connection errors that many times,
            but no other types of errors. Pass zero to never retry.
    
            If ``False``, then retries are disabled and any exception is raised
            immediately. Also, instead of raising a MaxRetryError on redirects,
            the redirect response will be returned.
    
        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
        :param redirect:
            If True, automatically handle redirects (status codes 301, 302,
            303, 307, 308). Each redirect counts as a retry. Disabling retries
            will disable redirect, too.
    
        :param assert_same_host:
            If ``True``, will make sure that the host of the pool requests is
            consistent else will raise HostChangedError. When ``False``, you can
            use the pool on an HTTP proxy and request foreign hosts.
    
        :param timeout:
            If specified, overrides the default timeout for this one
            request. It may be a float (in seconds) or an instance of
            :class:`urllib3.util.Timeout`.
    
        :param pool_timeout:
            If set and the pool is set to block=True, then this method will
            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
            connection is available within the time period.
    
        :param bool preload_content:
            If True, the response's body will be preloaded into memory.
    
        :param bool decode_content:
            If True, will attempt to decode the body based on the
            'content-encoding' header.
    
        :param release_conn:
            If False, then the urlopen call will not release the connection
            back into the pool once a response is received (but will release if
            you read the entire contents of the response such as when
            `preload_content=True`). This is useful if you're not preloading
            the response's content immediately. You will need to call
            ``r.release_conn()`` on the response ``r`` to return the connection
            back into the pool. If None, it takes the value of ``preload_content``
            which defaults to ``True``.
    
        :param bool chunked:
            If True, urllib3 will send the body using chunked transfer
            encoding. Otherwise, urllib3 will send the body using the standard
            content-length form. Defaults to False.
    
        :param int body_pos:
            Position to seek to in file-like body in the event of a retry or
            redirect. Typically this won't need to be set because urllib3 will
            auto-populate the value when needed.
        """
        parsed_url = parse_url(url)
        destination_scheme = parsed_url.scheme
    
        if headers is None:
            headers = self.headers
    
        if not isinstance(retries, Retry):
            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
    
        if release_conn is None:
            release_conn = preload_content
    
        # Check host
        if assert_same_host and not self.is_same_host(url):
            raise HostChangedError(self, url, retries)
    
        # Ensure that the URL we're connecting to is properly encoded
        if url.startswith("/"):
            url = to_str(_encode_target(url))
        else:
            url = to_str(parsed_url.url)
    
        conn = None
    
        # Track whether `conn` needs to be released before
        # returning/raising/recursing. Update this variable if necessary, and
        # leave `release_conn` constant throughout the function. That way, if
        # the function recurses, the original value of `release_conn` will be
        # passed down into the recursive call, and its value will be respected.
        #
        # See issue #651 [1] for details.
        #
        # [1] &lt;https://github.com/urllib3/urllib3/issues/651&gt;
        release_this_conn = release_conn
    
        http_tunnel_required = connection_requires_http_tunnel(
            self.proxy, self.proxy_config, destination_scheme
        )
    
        # Merge the proxy headers. Only done when not using HTTP CONNECT. We
        # have to copy the headers dict so we can safely change it without those
        # changes being reflected in anyone else's copy.
        if not http_tunnel_required:
            headers = headers.copy()  # type: ignore[attr-defined]
            headers.update(self.proxy_headers)  # type: ignore[union-attr]
    
        # Must keep the exception bound to a separate variable or else Python 3
        # complains about UnboundLocalError.
        err = None
    
        # Keep track of whether we cleanly exited the except block. This
        # ensures we do proper cleanup in finally.
        clean_exit = False
    
        # Rewind body position, if needed. Record current position
        # for future rewinds in the event of a redirect/retry.
        body_pos = set_file_position(body, body_pos)
    
        try:
            # Request a connection from the queue.
            timeout_obj = self._get_timeout(timeout)
            conn = self._get_conn(timeout=pool_timeout)
    
            conn.timeout = timeout_obj.connect_timeout  # type: ignore[assignment]
    
            # Is this a closed/new connection that requires CONNECT tunnelling?
            if self.proxy is not None and http_tunnel_required and conn.is_closed:
                try:
                    self._prepare_proxy(conn)
                except (BaseSSLError, OSError, SocketTimeout) as e:
                    self._raise_timeout(
                        err=e, url=self.proxy.url, timeout_value=conn.timeout
                    )
                    raise
    
            # If we're going to release the connection in ``finally:``, then
            # the response doesn't need to know about the connection. Otherwise
            # it will also try to release it and we'll have a double-release
            # mess.
            response_conn = conn if not release_conn else None
    
            # Make the request on the HTTPConnection object
            response = self._make_request(
                conn,
                method,
                url,
                timeout=timeout_obj,
                body=body,
                headers=headers,
                chunked=chunked,
                retries=retries,
                response_conn=response_conn,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )
    
            # Everything went great!
            clean_exit = True
    
        except EmptyPoolError:
            # Didn't get a connection from the pool, no need to clean up
            clean_exit = True
            release_this_conn = False
            raise
    
        except (
            TimeoutError,
            HTTPException,
            OSError,
            ProtocolError,
            BaseSSLError,
            SSLError,
            CertificateError,
            ProxyError,
        ) as e:
            # Discard the connection for these exceptions. It will be
            # replaced during the next _get_conn() call.
            clean_exit = False
            new_e: Exception = e
            if isinstance(e, (BaseSSLError, CertificateError)):
                new_e = SSLError(e)
            if isinstance(
                new_e,
                (
                    OSError,
                    NewConnectionError,
                    TimeoutError,
                    SSLError,
                    HTTPException,
                ),
            ) and (conn and conn.proxy and not conn.has_connected_to_proxy):
                new_e = _wrap_proxy_error(new_e, conn.proxy.scheme)
            elif isinstance(new_e, (OSError, HTTPException)):
                new_e = ProtocolError("Connection aborted.", new_e)
    
            retries = retries.increment(
                method, url, error=new_e, _pool=self, _stacktrace=sys.exc_info()[2]
            )
            retries.sleep()
    
            # Keep track of the error for the retry warning.
            err = e
    
        finally:
            if not clean_exit:
                # We hit some kind of exception, handled or otherwise. We need
                # to throw the connection away unless explicitly told not to.
                # Close the connection, set the variable to None, and make sure
                # we put the None back in the pool to avoid leaking it.
                if conn:
                    conn.close()
                    conn = None
                release_this_conn = True
    
            if release_this_conn:
                # Put the connection back to be reused. If the connection is
                # expired then it will be None, which will get replaced with a
                # fresh connection during _get_conn.
                self._put_conn(conn)
    
        if not conn:
            # Try again
            log.warning(
                "Retrying (%r) after connection broken by '%r': %s", retries, err, url
            )
&gt;           return self.urlopen(
                method,
                url,
                body,
                headers,
                retries,
                redirect,
                assert_same_host,
                timeout=timeout,
                pool_timeout=pool_timeout,
                release_conn=release_conn,
                chunked=chunked,
                body_pos=body_pos,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:871: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
body = b'{"model": "facebook/opt-125m", "prompt": "Explain machine learning in simple terms.", "max_tokens": 100}'
headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '104', 'Content-Type': 'application/json'}
retries = Retry(total=4, connect=None, read=None, redirect=None, status=None)
redirect = False, assert_same_host = False
timeout = Timeout(connect=60, read=60, total=None), pool_timeout = None
release_conn = False, chunked = False, body_pos = None, preload_content = False
decode_content = False, response_kw = {}
parsed_url = Url(scheme=None, auth=None, host=None, port=None, path='/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions', query=None, fragment=None)
destination_scheme = None, conn = None, release_this_conn = True
http_tunnel_required = False
err = ReadTimeoutError("HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)")
clean_exit = False

    def urlopen(  # type: ignore[override]
        self,
        method: str,
        url: str,
        body: _TYPE_BODY | None = None,
        headers: typing.Mapping[str, str] | None = None,
        retries: Retry | bool | int | None = None,
        redirect: bool = True,
        assert_same_host: bool = True,
        timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT,
        pool_timeout: int | None = None,
        release_conn: bool | None = None,
        chunked: bool = False,
        body_pos: _TYPE_BODY_POSITION | None = None,
        preload_content: bool = True,
        decode_content: bool = True,
        **response_kw: typing.Any,
    ) -&gt; BaseHTTPResponse:
        """
        Get a connection from the pool and perform an HTTP request. This is the
        lowest level call for making a request, so you'll need to specify all
        the raw details.
    
        .. note::
    
           More commonly, it's appropriate to use a convenience method
           such as :meth:`request`.
    
        .. note::
    
           `release_conn` will only behave as expected if
           `preload_content=False` because we want to make
           `preload_content=False` the default behaviour someday soon without
           breaking backwards compatibility.
    
        :param method:
            HTTP request method (such as GET, POST, PUT, etc.)
    
        :param url:
            The URL to perform the request on.
    
        :param body:
            Data to send in the request body, either :class:`str`, :class:`bytes`,
            an iterable of :class:`str`/:class:`bytes`, or a file-like object.
    
        :param headers:
            Dictionary of custom headers to send, such as User-Agent,
            If-None-Match, etc. If None, pool headers are used. If provided,
            these headers completely replace any pool-specific headers.
    
        :param retries:
            Configure the number of retries to allow before raising a
            :class:`~urllib3.exceptions.MaxRetryError` exception.
    
            If ``None`` (default) will retry 3 times, see ``Retry.DEFAULT``. Pass a
            :class:`~urllib3.util.retry.Retry` object for fine-grained control
            over different types of retries.
            Pass an integer number to retry connection errors that many times,
            but no other types of errors. Pass zero to never retry.
    
            If ``False``, then retries are disabled and any exception is raised
            immediately. Also, instead of raising a MaxRetryError on redirects,
            the redirect response will be returned.
    
        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
        :param redirect:
            If True, automatically handle redirects (status codes 301, 302,
            303, 307, 308). Each redirect counts as a retry. Disabling retries
            will disable redirect, too.
    
        :param assert_same_host:
            If ``True``, will make sure that the host of the pool requests is
            consistent else will raise HostChangedError. When ``False``, you can
            use the pool on an HTTP proxy and request foreign hosts.
    
        :param timeout:
            If specified, overrides the default timeout for this one
            request. It may be a float (in seconds) or an instance of
            :class:`urllib3.util.Timeout`.
    
        :param pool_timeout:
            If set and the pool is set to block=True, then this method will
            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
            connection is available within the time period.
    
        :param bool preload_content:
            If True, the response's body will be preloaded into memory.
    
        :param bool decode_content:
            If True, will attempt to decode the body based on the
            'content-encoding' header.
    
        :param release_conn:
            If False, then the urlopen call will not release the connection
            back into the pool once a response is received (but will release if
            you read the entire contents of the response such as when
            `preload_content=True`). This is useful if you're not preloading
            the response's content immediately. You will need to call
            ``r.release_conn()`` on the response ``r`` to return the connection
            back into the pool. If None, it takes the value of ``preload_content``
            which defaults to ``True``.
    
        :param bool chunked:
            If True, urllib3 will send the body using chunked transfer
            encoding. Otherwise, urllib3 will send the body using the standard
            content-length form. Defaults to False.
    
        :param int body_pos:
            Position to seek to in file-like body in the event of a retry or
            redirect. Typically this won't need to be set because urllib3 will
            auto-populate the value when needed.
        """
        parsed_url = parse_url(url)
        destination_scheme = parsed_url.scheme
    
        if headers is None:
            headers = self.headers
    
        if not isinstance(retries, Retry):
            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
    
        if release_conn is None:
            release_conn = preload_content
    
        # Check host
        if assert_same_host and not self.is_same_host(url):
            raise HostChangedError(self, url, retries)
    
        # Ensure that the URL we're connecting to is properly encoded
        if url.startswith("/"):
            url = to_str(_encode_target(url))
        else:
            url = to_str(parsed_url.url)
    
        conn = None
    
        # Track whether `conn` needs to be released before
        # returning/raising/recursing. Update this variable if necessary, and
        # leave `release_conn` constant throughout the function. That way, if
        # the function recurses, the original value of `release_conn` will be
        # passed down into the recursive call, and its value will be respected.
        #
        # See issue #651 [1] for details.
        #
        # [1] &lt;https://github.com/urllib3/urllib3/issues/651&gt;
        release_this_conn = release_conn
    
        http_tunnel_required = connection_requires_http_tunnel(
            self.proxy, self.proxy_config, destination_scheme
        )
    
        # Merge the proxy headers. Only done when not using HTTP CONNECT. We
        # have to copy the headers dict so we can safely change it without those
        # changes being reflected in anyone else's copy.
        if not http_tunnel_required:
            headers = headers.copy()  # type: ignore[attr-defined]
            headers.update(self.proxy_headers)  # type: ignore[union-attr]
    
        # Must keep the exception bound to a separate variable or else Python 3
        # complains about UnboundLocalError.
        err = None
    
        # Keep track of whether we cleanly exited the except block. This
        # ensures we do proper cleanup in finally.
        clean_exit = False
    
        # Rewind body position, if needed. Record current position
        # for future rewinds in the event of a redirect/retry.
        body_pos = set_file_position(body, body_pos)
    
        try:
            # Request a connection from the queue.
            timeout_obj = self._get_timeout(timeout)
            conn = self._get_conn(timeout=pool_timeout)
    
            conn.timeout = timeout_obj.connect_timeout  # type: ignore[assignment]
    
            # Is this a closed/new connection that requires CONNECT tunnelling?
            if self.proxy is not None and http_tunnel_required and conn.is_closed:
                try:
                    self._prepare_proxy(conn)
                except (BaseSSLError, OSError, SocketTimeout) as e:
                    self._raise_timeout(
                        err=e, url=self.proxy.url, timeout_value=conn.timeout
                    )
                    raise
    
            # If we're going to release the connection in ``finally:``, then
            # the response doesn't need to know about the connection. Otherwise
            # it will also try to release it and we'll have a double-release
            # mess.
            response_conn = conn if not release_conn else None
    
            # Make the request on the HTTPConnection object
            response = self._make_request(
                conn,
                method,
                url,
                timeout=timeout_obj,
                body=body,
                headers=headers,
                chunked=chunked,
                retries=retries,
                response_conn=response_conn,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )
    
            # Everything went great!
            clean_exit = True
    
        except EmptyPoolError:
            # Didn't get a connection from the pool, no need to clean up
            clean_exit = True
            release_this_conn = False
            raise
    
        except (
            TimeoutError,
            HTTPException,
            OSError,
            ProtocolError,
            BaseSSLError,
            SSLError,
            CertificateError,
            ProxyError,
        ) as e:
            # Discard the connection for these exceptions. It will be
            # replaced during the next _get_conn() call.
            clean_exit = False
            new_e: Exception = e
            if isinstance(e, (BaseSSLError, CertificateError)):
                new_e = SSLError(e)
            if isinstance(
                new_e,
                (
                    OSError,
                    NewConnectionError,
                    TimeoutError,
                    SSLError,
                    HTTPException,
                ),
            ) and (conn and conn.proxy and not conn.has_connected_to_proxy):
                new_e = _wrap_proxy_error(new_e, conn.proxy.scheme)
            elif isinstance(new_e, (OSError, HTTPException)):
                new_e = ProtocolError("Connection aborted.", new_e)
    
            retries = retries.increment(
                method, url, error=new_e, _pool=self, _stacktrace=sys.exc_info()[2]
            )
            retries.sleep()
    
            # Keep track of the error for the retry warning.
            err = e
    
        finally:
            if not clean_exit:
                # We hit some kind of exception, handled or otherwise. We need
                # to throw the connection away unless explicitly told not to.
                # Close the connection, set the variable to None, and make sure
                # we put the None back in the pool to avoid leaking it.
                if conn:
                    conn.close()
                    conn = None
                release_this_conn = True
    
            if release_this_conn:
                # Put the connection back to be reused. If the connection is
                # expired then it will be None, which will get replaced with a
                # fresh connection during _get_conn.
                self._put_conn(conn)
    
        if not conn:
            # Try again
            log.warning(
                "Retrying (%r) after connection broken by '%r': %s", retries, err, url
            )
&gt;           return self.urlopen(
                method,
                url,
                body,
                headers,
                retries,
                redirect,
                assert_same_host,
                timeout=timeout,
                pool_timeout=pool_timeout,
                release_conn=release_conn,
                chunked=chunked,
                body_pos=body_pos,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:871: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
body = b'{"model": "facebook/opt-125m", "prompt": "Explain machine learning in simple terms.", "max_tokens": 100}'
headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '104', 'Content-Type': 'application/json'}
retries = Retry(total=3, connect=None, read=None, redirect=None, status=None)
redirect = False, assert_same_host = False
timeout = Timeout(connect=60, read=60, total=None), pool_timeout = None
release_conn = False, chunked = False, body_pos = None, preload_content = False
decode_content = False, response_kw = {}
parsed_url = Url(scheme=None, auth=None, host=None, port=None, path='/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions', query=None, fragment=None)
destination_scheme = None, conn = None, release_this_conn = True
http_tunnel_required = False
err = ReadTimeoutError("HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)")
clean_exit = False

    def urlopen(  # type: ignore[override]
        self,
        method: str,
        url: str,
        body: _TYPE_BODY | None = None,
        headers: typing.Mapping[str, str] | None = None,
        retries: Retry | bool | int | None = None,
        redirect: bool = True,
        assert_same_host: bool = True,
        timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT,
        pool_timeout: int | None = None,
        release_conn: bool | None = None,
        chunked: bool = False,
        body_pos: _TYPE_BODY_POSITION | None = None,
        preload_content: bool = True,
        decode_content: bool = True,
        **response_kw: typing.Any,
    ) -&gt; BaseHTTPResponse:
        """
        Get a connection from the pool and perform an HTTP request. This is the
        lowest level call for making a request, so you'll need to specify all
        the raw details.
    
        .. note::
    
           More commonly, it's appropriate to use a convenience method
           such as :meth:`request`.
    
        .. note::
    
           `release_conn` will only behave as expected if
           `preload_content=False` because we want to make
           `preload_content=False` the default behaviour someday soon without
           breaking backwards compatibility.
    
        :param method:
            HTTP request method (such as GET, POST, PUT, etc.)
    
        :param url:
            The URL to perform the request on.
    
        :param body:
            Data to send in the request body, either :class:`str`, :class:`bytes`,
            an iterable of :class:`str`/:class:`bytes`, or a file-like object.
    
        :param headers:
            Dictionary of custom headers to send, such as User-Agent,
            If-None-Match, etc. If None, pool headers are used. If provided,
            these headers completely replace any pool-specific headers.
    
        :param retries:
            Configure the number of retries to allow before raising a
            :class:`~urllib3.exceptions.MaxRetryError` exception.
    
            If ``None`` (default) will retry 3 times, see ``Retry.DEFAULT``. Pass a
            :class:`~urllib3.util.retry.Retry` object for fine-grained control
            over different types of retries.
            Pass an integer number to retry connection errors that many times,
            but no other types of errors. Pass zero to never retry.
    
            If ``False``, then retries are disabled and any exception is raised
            immediately. Also, instead of raising a MaxRetryError on redirects,
            the redirect response will be returned.
    
        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
        :param redirect:
            If True, automatically handle redirects (status codes 301, 302,
            303, 307, 308). Each redirect counts as a retry. Disabling retries
            will disable redirect, too.
    
        :param assert_same_host:
            If ``True``, will make sure that the host of the pool requests is
            consistent else will raise HostChangedError. When ``False``, you can
            use the pool on an HTTP proxy and request foreign hosts.
    
        :param timeout:
            If specified, overrides the default timeout for this one
            request. It may be a float (in seconds) or an instance of
            :class:`urllib3.util.Timeout`.
    
        :param pool_timeout:
            If set and the pool is set to block=True, then this method will
            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
            connection is available within the time period.
    
        :param bool preload_content:
            If True, the response's body will be preloaded into memory.
    
        :param bool decode_content:
            If True, will attempt to decode the body based on the
            'content-encoding' header.
    
        :param release_conn:
            If False, then the urlopen call will not release the connection
            back into the pool once a response is received (but will release if
            you read the entire contents of the response such as when
            `preload_content=True`). This is useful if you're not preloading
            the response's content immediately. You will need to call
            ``r.release_conn()`` on the response ``r`` to return the connection
            back into the pool. If None, it takes the value of ``preload_content``
            which defaults to ``True``.
    
        :param bool chunked:
            If True, urllib3 will send the body using chunked transfer
            encoding. Otherwise, urllib3 will send the body using the standard
            content-length form. Defaults to False.
    
        :param int body_pos:
            Position to seek to in file-like body in the event of a retry or
            redirect. Typically this won't need to be set because urllib3 will
            auto-populate the value when needed.
        """
        parsed_url = parse_url(url)
        destination_scheme = parsed_url.scheme
    
        if headers is None:
            headers = self.headers
    
        if not isinstance(retries, Retry):
            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
    
        if release_conn is None:
            release_conn = preload_content
    
        # Check host
        if assert_same_host and not self.is_same_host(url):
            raise HostChangedError(self, url, retries)
    
        # Ensure that the URL we're connecting to is properly encoded
        if url.startswith("/"):
            url = to_str(_encode_target(url))
        else:
            url = to_str(parsed_url.url)
    
        conn = None
    
        # Track whether `conn` needs to be released before
        # returning/raising/recursing. Update this variable if necessary, and
        # leave `release_conn` constant throughout the function. That way, if
        # the function recurses, the original value of `release_conn` will be
        # passed down into the recursive call, and its value will be respected.
        #
        # See issue #651 [1] for details.
        #
        # [1] &lt;https://github.com/urllib3/urllib3/issues/651&gt;
        release_this_conn = release_conn
    
        http_tunnel_required = connection_requires_http_tunnel(
            self.proxy, self.proxy_config, destination_scheme
        )
    
        # Merge the proxy headers. Only done when not using HTTP CONNECT. We
        # have to copy the headers dict so we can safely change it without those
        # changes being reflected in anyone else's copy.
        if not http_tunnel_required:
            headers = headers.copy()  # type: ignore[attr-defined]
            headers.update(self.proxy_headers)  # type: ignore[union-attr]
    
        # Must keep the exception bound to a separate variable or else Python 3
        # complains about UnboundLocalError.
        err = None
    
        # Keep track of whether we cleanly exited the except block. This
        # ensures we do proper cleanup in finally.
        clean_exit = False
    
        # Rewind body position, if needed. Record current position
        # for future rewinds in the event of a redirect/retry.
        body_pos = set_file_position(body, body_pos)
    
        try:
            # Request a connection from the queue.
            timeout_obj = self._get_timeout(timeout)
            conn = self._get_conn(timeout=pool_timeout)
    
            conn.timeout = timeout_obj.connect_timeout  # type: ignore[assignment]
    
            # Is this a closed/new connection that requires CONNECT tunnelling?
            if self.proxy is not None and http_tunnel_required and conn.is_closed:
                try:
                    self._prepare_proxy(conn)
                except (BaseSSLError, OSError, SocketTimeout) as e:
                    self._raise_timeout(
                        err=e, url=self.proxy.url, timeout_value=conn.timeout
                    )
                    raise
    
            # If we're going to release the connection in ``finally:``, then
            # the response doesn't need to know about the connection. Otherwise
            # it will also try to release it and we'll have a double-release
            # mess.
            response_conn = conn if not release_conn else None
    
            # Make the request on the HTTPConnection object
            response = self._make_request(
                conn,
                method,
                url,
                timeout=timeout_obj,
                body=body,
                headers=headers,
                chunked=chunked,
                retries=retries,
                response_conn=response_conn,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )
    
            # Everything went great!
            clean_exit = True
    
        except EmptyPoolError:
            # Didn't get a connection from the pool, no need to clean up
            clean_exit = True
            release_this_conn = False
            raise
    
        except (
            TimeoutError,
            HTTPException,
            OSError,
            ProtocolError,
            BaseSSLError,
            SSLError,
            CertificateError,
            ProxyError,
        ) as e:
            # Discard the connection for these exceptions. It will be
            # replaced during the next _get_conn() call.
            clean_exit = False
            new_e: Exception = e
            if isinstance(e, (BaseSSLError, CertificateError)):
                new_e = SSLError(e)
            if isinstance(
                new_e,
                (
                    OSError,
                    NewConnectionError,
                    TimeoutError,
                    SSLError,
                    HTTPException,
                ),
            ) and (conn and conn.proxy and not conn.has_connected_to_proxy):
                new_e = _wrap_proxy_error(new_e, conn.proxy.scheme)
            elif isinstance(new_e, (OSError, HTTPException)):
                new_e = ProtocolError("Connection aborted.", new_e)
    
            retries = retries.increment(
                method, url, error=new_e, _pool=self, _stacktrace=sys.exc_info()[2]
            )
            retries.sleep()
    
            # Keep track of the error for the retry warning.
            err = e
    
        finally:
            if not clean_exit:
                # We hit some kind of exception, handled or otherwise. We need
                # to throw the connection away unless explicitly told not to.
                # Close the connection, set the variable to None, and make sure
                # we put the None back in the pool to avoid leaking it.
                if conn:
                    conn.close()
                    conn = None
                release_this_conn = True
    
            if release_this_conn:
                # Put the connection back to be reused. If the connection is
                # expired then it will be None, which will get replaced with a
                # fresh connection during _get_conn.
                self._put_conn(conn)
    
        if not conn:
            # Try again
            log.warning(
                "Retrying (%r) after connection broken by '%r': %s", retries, err, url
            )
&gt;           return self.urlopen(
                method,
                url,
                body,
                headers,
                retries,
                redirect,
                assert_same_host,
                timeout=timeout,
                pool_timeout=pool_timeout,
                release_conn=release_conn,
                chunked=chunked,
                body_pos=body_pos,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:871: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
body = b'{"model": "facebook/opt-125m", "prompt": "Explain machine learning in simple terms.", "max_tokens": 100}'
headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '104', 'Content-Type': 'application/json'}
retries = Retry(total=2, connect=None, read=None, redirect=None, status=None)
redirect = False, assert_same_host = False
timeout = Timeout(connect=60, read=60, total=None), pool_timeout = None
release_conn = False, chunked = False, body_pos = None, preload_content = False
decode_content = False, response_kw = {}
parsed_url = Url(scheme=None, auth=None, host=None, port=None, path='/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions', query=None, fragment=None)
destination_scheme = None, conn = None, release_this_conn = True
http_tunnel_required = False
err = ReadTimeoutError("HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)")
clean_exit = False

    def urlopen(  # type: ignore[override]
        self,
        method: str,
        url: str,
        body: _TYPE_BODY | None = None,
        headers: typing.Mapping[str, str] | None = None,
        retries: Retry | bool | int | None = None,
        redirect: bool = True,
        assert_same_host: bool = True,
        timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT,
        pool_timeout: int | None = None,
        release_conn: bool | None = None,
        chunked: bool = False,
        body_pos: _TYPE_BODY_POSITION | None = None,
        preload_content: bool = True,
        decode_content: bool = True,
        **response_kw: typing.Any,
    ) -&gt; BaseHTTPResponse:
        """
        Get a connection from the pool and perform an HTTP request. This is the
        lowest level call for making a request, so you'll need to specify all
        the raw details.
    
        .. note::
    
           More commonly, it's appropriate to use a convenience method
           such as :meth:`request`.
    
        .. note::
    
           `release_conn` will only behave as expected if
           `preload_content=False` because we want to make
           `preload_content=False` the default behaviour someday soon without
           breaking backwards compatibility.
    
        :param method:
            HTTP request method (such as GET, POST, PUT, etc.)
    
        :param url:
            The URL to perform the request on.
    
        :param body:
            Data to send in the request body, either :class:`str`, :class:`bytes`,
            an iterable of :class:`str`/:class:`bytes`, or a file-like object.
    
        :param headers:
            Dictionary of custom headers to send, such as User-Agent,
            If-None-Match, etc. If None, pool headers are used. If provided,
            these headers completely replace any pool-specific headers.
    
        :param retries:
            Configure the number of retries to allow before raising a
            :class:`~urllib3.exceptions.MaxRetryError` exception.
    
            If ``None`` (default) will retry 3 times, see ``Retry.DEFAULT``. Pass a
            :class:`~urllib3.util.retry.Retry` object for fine-grained control
            over different types of retries.
            Pass an integer number to retry connection errors that many times,
            but no other types of errors. Pass zero to never retry.
    
            If ``False``, then retries are disabled and any exception is raised
            immediately. Also, instead of raising a MaxRetryError on redirects,
            the redirect response will be returned.
    
        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
        :param redirect:
            If True, automatically handle redirects (status codes 301, 302,
            303, 307, 308). Each redirect counts as a retry. Disabling retries
            will disable redirect, too.
    
        :param assert_same_host:
            If ``True``, will make sure that the host of the pool requests is
            consistent else will raise HostChangedError. When ``False``, you can
            use the pool on an HTTP proxy and request foreign hosts.
    
        :param timeout:
            If specified, overrides the default timeout for this one
            request. It may be a float (in seconds) or an instance of
            :class:`urllib3.util.Timeout`.
    
        :param pool_timeout:
            If set and the pool is set to block=True, then this method will
            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
            connection is available within the time period.
    
        :param bool preload_content:
            If True, the response's body will be preloaded into memory.
    
        :param bool decode_content:
            If True, will attempt to decode the body based on the
            'content-encoding' header.
    
        :param release_conn:
            If False, then the urlopen call will not release the connection
            back into the pool once a response is received (but will release if
            you read the entire contents of the response such as when
            `preload_content=True`). This is useful if you're not preloading
            the response's content immediately. You will need to call
            ``r.release_conn()`` on the response ``r`` to return the connection
            back into the pool. If None, it takes the value of ``preload_content``
            which defaults to ``True``.
    
        :param bool chunked:
            If True, urllib3 will send the body using chunked transfer
            encoding. Otherwise, urllib3 will send the body using the standard
            content-length form. Defaults to False.
    
        :param int body_pos:
            Position to seek to in file-like body in the event of a retry or
            redirect. Typically this won't need to be set because urllib3 will
            auto-populate the value when needed.
        """
        parsed_url = parse_url(url)
        destination_scheme = parsed_url.scheme
    
        if headers is None:
            headers = self.headers
    
        if not isinstance(retries, Retry):
            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
    
        if release_conn is None:
            release_conn = preload_content
    
        # Check host
        if assert_same_host and not self.is_same_host(url):
            raise HostChangedError(self, url, retries)
    
        # Ensure that the URL we're connecting to is properly encoded
        if url.startswith("/"):
            url = to_str(_encode_target(url))
        else:
            url = to_str(parsed_url.url)
    
        conn = None
    
        # Track whether `conn` needs to be released before
        # returning/raising/recursing. Update this variable if necessary, and
        # leave `release_conn` constant throughout the function. That way, if
        # the function recurses, the original value of `release_conn` will be
        # passed down into the recursive call, and its value will be respected.
        #
        # See issue #651 [1] for details.
        #
        # [1] &lt;https://github.com/urllib3/urllib3/issues/651&gt;
        release_this_conn = release_conn
    
        http_tunnel_required = connection_requires_http_tunnel(
            self.proxy, self.proxy_config, destination_scheme
        )
    
        # Merge the proxy headers. Only done when not using HTTP CONNECT. We
        # have to copy the headers dict so we can safely change it without those
        # changes being reflected in anyone else's copy.
        if not http_tunnel_required:
            headers = headers.copy()  # type: ignore[attr-defined]
            headers.update(self.proxy_headers)  # type: ignore[union-attr]
    
        # Must keep the exception bound to a separate variable or else Python 3
        # complains about UnboundLocalError.
        err = None
    
        # Keep track of whether we cleanly exited the except block. This
        # ensures we do proper cleanup in finally.
        clean_exit = False
    
        # Rewind body position, if needed. Record current position
        # for future rewinds in the event of a redirect/retry.
        body_pos = set_file_position(body, body_pos)
    
        try:
            # Request a connection from the queue.
            timeout_obj = self._get_timeout(timeout)
            conn = self._get_conn(timeout=pool_timeout)
    
            conn.timeout = timeout_obj.connect_timeout  # type: ignore[assignment]
    
            # Is this a closed/new connection that requires CONNECT tunnelling?
            if self.proxy is not None and http_tunnel_required and conn.is_closed:
                try:
                    self._prepare_proxy(conn)
                except (BaseSSLError, OSError, SocketTimeout) as e:
                    self._raise_timeout(
                        err=e, url=self.proxy.url, timeout_value=conn.timeout
                    )
                    raise
    
            # If we're going to release the connection in ``finally:``, then
            # the response doesn't need to know about the connection. Otherwise
            # it will also try to release it and we'll have a double-release
            # mess.
            response_conn = conn if not release_conn else None
    
            # Make the request on the HTTPConnection object
            response = self._make_request(
                conn,
                method,
                url,
                timeout=timeout_obj,
                body=body,
                headers=headers,
                chunked=chunked,
                retries=retries,
                response_conn=response_conn,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )
    
            # Everything went great!
            clean_exit = True
    
        except EmptyPoolError:
            # Didn't get a connection from the pool, no need to clean up
            clean_exit = True
            release_this_conn = False
            raise
    
        except (
            TimeoutError,
            HTTPException,
            OSError,
            ProtocolError,
            BaseSSLError,
            SSLError,
            CertificateError,
            ProxyError,
        ) as e:
            # Discard the connection for these exceptions. It will be
            # replaced during the next _get_conn() call.
            clean_exit = False
            new_e: Exception = e
            if isinstance(e, (BaseSSLError, CertificateError)):
                new_e = SSLError(e)
            if isinstance(
                new_e,
                (
                    OSError,
                    NewConnectionError,
                    TimeoutError,
                    SSLError,
                    HTTPException,
                ),
            ) and (conn and conn.proxy and not conn.has_connected_to_proxy):
                new_e = _wrap_proxy_error(new_e, conn.proxy.scheme)
            elif isinstance(new_e, (OSError, HTTPException)):
                new_e = ProtocolError("Connection aborted.", new_e)
    
            retries = retries.increment(
                method, url, error=new_e, _pool=self, _stacktrace=sys.exc_info()[2]
            )
            retries.sleep()
    
            # Keep track of the error for the retry warning.
            err = e
    
        finally:
            if not clean_exit:
                # We hit some kind of exception, handled or otherwise. We need
                # to throw the connection away unless explicitly told not to.
                # Close the connection, set the variable to None, and make sure
                # we put the None back in the pool to avoid leaking it.
                if conn:
                    conn.close()
                    conn = None
                release_this_conn = True
    
            if release_this_conn:
                # Put the connection back to be reused. If the connection is
                # expired then it will be None, which will get replaced with a
                # fresh connection during _get_conn.
                self._put_conn(conn)
    
        if not conn:
            # Try again
            log.warning(
                "Retrying (%r) after connection broken by '%r': %s", retries, err, url
            )
&gt;           return self.urlopen(
                method,
                url,
                body,
                headers,
                retries,
                redirect,
                assert_same_host,
                timeout=timeout,
                pool_timeout=pool_timeout,
                release_conn=release_conn,
                chunked=chunked,
                body_pos=body_pos,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:871: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
body = b'{"model": "facebook/opt-125m", "prompt": "Explain machine learning in simple terms.", "max_tokens": 100}'
headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '104', 'Content-Type': 'application/json'}
retries = Retry(total=1, connect=None, read=None, redirect=None, status=None)
redirect = False, assert_same_host = False
timeout = Timeout(connect=60, read=60, total=None), pool_timeout = None
release_conn = False, chunked = False, body_pos = None, preload_content = False
decode_content = False, response_kw = {}
parsed_url = Url(scheme=None, auth=None, host=None, port=None, path='/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions', query=None, fragment=None)
destination_scheme = None, conn = None, release_this_conn = True
http_tunnel_required = False
err = ReadTimeoutError("HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)")
clean_exit = False

    def urlopen(  # type: ignore[override]
        self,
        method: str,
        url: str,
        body: _TYPE_BODY | None = None,
        headers: typing.Mapping[str, str] | None = None,
        retries: Retry | bool | int | None = None,
        redirect: bool = True,
        assert_same_host: bool = True,
        timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT,
        pool_timeout: int | None = None,
        release_conn: bool | None = None,
        chunked: bool = False,
        body_pos: _TYPE_BODY_POSITION | None = None,
        preload_content: bool = True,
        decode_content: bool = True,
        **response_kw: typing.Any,
    ) -&gt; BaseHTTPResponse:
        """
        Get a connection from the pool and perform an HTTP request. This is the
        lowest level call for making a request, so you'll need to specify all
        the raw details.
    
        .. note::
    
           More commonly, it's appropriate to use a convenience method
           such as :meth:`request`.
    
        .. note::
    
           `release_conn` will only behave as expected if
           `preload_content=False` because we want to make
           `preload_content=False` the default behaviour someday soon without
           breaking backwards compatibility.
    
        :param method:
            HTTP request method (such as GET, POST, PUT, etc.)
    
        :param url:
            The URL to perform the request on.
    
        :param body:
            Data to send in the request body, either :class:`str`, :class:`bytes`,
            an iterable of :class:`str`/:class:`bytes`, or a file-like object.
    
        :param headers:
            Dictionary of custom headers to send, such as User-Agent,
            If-None-Match, etc. If None, pool headers are used. If provided,
            these headers completely replace any pool-specific headers.
    
        :param retries:
            Configure the number of retries to allow before raising a
            :class:`~urllib3.exceptions.MaxRetryError` exception.
    
            If ``None`` (default) will retry 3 times, see ``Retry.DEFAULT``. Pass a
            :class:`~urllib3.util.retry.Retry` object for fine-grained control
            over different types of retries.
            Pass an integer number to retry connection errors that many times,
            but no other types of errors. Pass zero to never retry.
    
            If ``False``, then retries are disabled and any exception is raised
            immediately. Also, instead of raising a MaxRetryError on redirects,
            the redirect response will be returned.
    
        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
        :param redirect:
            If True, automatically handle redirects (status codes 301, 302,
            303, 307, 308). Each redirect counts as a retry. Disabling retries
            will disable redirect, too.
    
        :param assert_same_host:
            If ``True``, will make sure that the host of the pool requests is
            consistent else will raise HostChangedError. When ``False``, you can
            use the pool on an HTTP proxy and request foreign hosts.
    
        :param timeout:
            If specified, overrides the default timeout for this one
            request. It may be a float (in seconds) or an instance of
            :class:`urllib3.util.Timeout`.
    
        :param pool_timeout:
            If set and the pool is set to block=True, then this method will
            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
            connection is available within the time period.
    
        :param bool preload_content:
            If True, the response's body will be preloaded into memory.
    
        :param bool decode_content:
            If True, will attempt to decode the body based on the
            'content-encoding' header.
    
        :param release_conn:
            If False, then the urlopen call will not release the connection
            back into the pool once a response is received (but will release if
            you read the entire contents of the response such as when
            `preload_content=True`). This is useful if you're not preloading
            the response's content immediately. You will need to call
            ``r.release_conn()`` on the response ``r`` to return the connection
            back into the pool. If None, it takes the value of ``preload_content``
            which defaults to ``True``.
    
        :param bool chunked:
            If True, urllib3 will send the body using chunked transfer
            encoding. Otherwise, urllib3 will send the body using the standard
            content-length form. Defaults to False.
    
        :param int body_pos:
            Position to seek to in file-like body in the event of a retry or
            redirect. Typically this won't need to be set because urllib3 will
            auto-populate the value when needed.
        """
        parsed_url = parse_url(url)
        destination_scheme = parsed_url.scheme
    
        if headers is None:
            headers = self.headers
    
        if not isinstance(retries, Retry):
            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
    
        if release_conn is None:
            release_conn = preload_content
    
        # Check host
        if assert_same_host and not self.is_same_host(url):
            raise HostChangedError(self, url, retries)
    
        # Ensure that the URL we're connecting to is properly encoded
        if url.startswith("/"):
            url = to_str(_encode_target(url))
        else:
            url = to_str(parsed_url.url)
    
        conn = None
    
        # Track whether `conn` needs to be released before
        # returning/raising/recursing. Update this variable if necessary, and
        # leave `release_conn` constant throughout the function. That way, if
        # the function recurses, the original value of `release_conn` will be
        # passed down into the recursive call, and its value will be respected.
        #
        # See issue #651 [1] for details.
        #
        # [1] &lt;https://github.com/urllib3/urllib3/issues/651&gt;
        release_this_conn = release_conn
    
        http_tunnel_required = connection_requires_http_tunnel(
            self.proxy, self.proxy_config, destination_scheme
        )
    
        # Merge the proxy headers. Only done when not using HTTP CONNECT. We
        # have to copy the headers dict so we can safely change it without those
        # changes being reflected in anyone else's copy.
        if not http_tunnel_required:
            headers = headers.copy()  # type: ignore[attr-defined]
            headers.update(self.proxy_headers)  # type: ignore[union-attr]
    
        # Must keep the exception bound to a separate variable or else Python 3
        # complains about UnboundLocalError.
        err = None
    
        # Keep track of whether we cleanly exited the except block. This
        # ensures we do proper cleanup in finally.
        clean_exit = False
    
        # Rewind body position, if needed. Record current position
        # for future rewinds in the event of a redirect/retry.
        body_pos = set_file_position(body, body_pos)
    
        try:
            # Request a connection from the queue.
            timeout_obj = self._get_timeout(timeout)
            conn = self._get_conn(timeout=pool_timeout)
    
            conn.timeout = timeout_obj.connect_timeout  # type: ignore[assignment]
    
            # Is this a closed/new connection that requires CONNECT tunnelling?
            if self.proxy is not None and http_tunnel_required and conn.is_closed:
                try:
                    self._prepare_proxy(conn)
                except (BaseSSLError, OSError, SocketTimeout) as e:
                    self._raise_timeout(
                        err=e, url=self.proxy.url, timeout_value=conn.timeout
                    )
                    raise
    
            # If we're going to release the connection in ``finally:``, then
            # the response doesn't need to know about the connection. Otherwise
            # it will also try to release it and we'll have a double-release
            # mess.
            response_conn = conn if not release_conn else None
    
            # Make the request on the HTTPConnection object
            response = self._make_request(
                conn,
                method,
                url,
                timeout=timeout_obj,
                body=body,
                headers=headers,
                chunked=chunked,
                retries=retries,
                response_conn=response_conn,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )
    
            # Everything went great!
            clean_exit = True
    
        except EmptyPoolError:
            # Didn't get a connection from the pool, no need to clean up
            clean_exit = True
            release_this_conn = False
            raise
    
        except (
            TimeoutError,
            HTTPException,
            OSError,
            ProtocolError,
            BaseSSLError,
            SSLError,
            CertificateError,
            ProxyError,
        ) as e:
            # Discard the connection for these exceptions. It will be
            # replaced during the next _get_conn() call.
            clean_exit = False
            new_e: Exception = e
            if isinstance(e, (BaseSSLError, CertificateError)):
                new_e = SSLError(e)
            if isinstance(
                new_e,
                (
                    OSError,
                    NewConnectionError,
                    TimeoutError,
                    SSLError,
                    HTTPException,
                ),
            ) and (conn and conn.proxy and not conn.has_connected_to_proxy):
                new_e = _wrap_proxy_error(new_e, conn.proxy.scheme)
            elif isinstance(new_e, (OSError, HTTPException)):
                new_e = ProtocolError("Connection aborted.", new_e)
    
            retries = retries.increment(
                method, url, error=new_e, _pool=self, _stacktrace=sys.exc_info()[2]
            )
            retries.sleep()
    
            # Keep track of the error for the retry warning.
            err = e
    
        finally:
            if not clean_exit:
                # We hit some kind of exception, handled or otherwise. We need
                # to throw the connection away unless explicitly told not to.
                # Close the connection, set the variable to None, and make sure
                # we put the None back in the pool to avoid leaking it.
                if conn:
                    conn.close()
                    conn = None
                release_this_conn = True
    
            if release_this_conn:
                # Put the connection back to be reused. If the connection is
                # expired then it will be None, which will get replaced with a
                # fresh connection during _get_conn.
                self._put_conn(conn)
    
        if not conn:
            # Try again
            log.warning(
                "Retrying (%r) after connection broken by '%r': %s", retries, err, url
            )
&gt;           return self.urlopen(
                method,
                url,
                body,
                headers,
                retries,
                redirect,
                assert_same_host,
                timeout=timeout,
                pool_timeout=pool_timeout,
                release_conn=release_conn,
                chunked=chunked,
                body_pos=body_pos,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:871: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
body = b'{"model": "facebook/opt-125m", "prompt": "Explain machine learning in simple terms.", "max_tokens": 100}'
headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '104', 'Content-Type': 'application/json'}
retries = Retry(total=0, connect=None, read=None, redirect=None, status=None)
redirect = False, assert_same_host = False
timeout = Timeout(connect=60, read=60, total=None), pool_timeout = None
release_conn = False, chunked = False, body_pos = None, preload_content = False
decode_content = False, response_kw = {}
parsed_url = Url(scheme=None, auth=None, host=None, port=None, path='/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions', query=None, fragment=None)
destination_scheme = None, conn = None, release_this_conn = True
http_tunnel_required = False
err = ReadTimeoutError("HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)")
clean_exit = False

    def urlopen(  # type: ignore[override]
        self,
        method: str,
        url: str,
        body: _TYPE_BODY | None = None,
        headers: typing.Mapping[str, str] | None = None,
        retries: Retry | bool | int | None = None,
        redirect: bool = True,
        assert_same_host: bool = True,
        timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT,
        pool_timeout: int | None = None,
        release_conn: bool | None = None,
        chunked: bool = False,
        body_pos: _TYPE_BODY_POSITION | None = None,
        preload_content: bool = True,
        decode_content: bool = True,
        **response_kw: typing.Any,
    ) -&gt; BaseHTTPResponse:
        """
        Get a connection from the pool and perform an HTTP request. This is the
        lowest level call for making a request, so you'll need to specify all
        the raw details.
    
        .. note::
    
           More commonly, it's appropriate to use a convenience method
           such as :meth:`request`.
    
        .. note::
    
           `release_conn` will only behave as expected if
           `preload_content=False` because we want to make
           `preload_content=False` the default behaviour someday soon without
           breaking backwards compatibility.
    
        :param method:
            HTTP request method (such as GET, POST, PUT, etc.)
    
        :param url:
            The URL to perform the request on.
    
        :param body:
            Data to send in the request body, either :class:`str`, :class:`bytes`,
            an iterable of :class:`str`/:class:`bytes`, or a file-like object.
    
        :param headers:
            Dictionary of custom headers to send, such as User-Agent,
            If-None-Match, etc. If None, pool headers are used. If provided,
            these headers completely replace any pool-specific headers.
    
        :param retries:
            Configure the number of retries to allow before raising a
            :class:`~urllib3.exceptions.MaxRetryError` exception.
    
            If ``None`` (default) will retry 3 times, see ``Retry.DEFAULT``. Pass a
            :class:`~urllib3.util.retry.Retry` object for fine-grained control
            over different types of retries.
            Pass an integer number to retry connection errors that many times,
            but no other types of errors. Pass zero to never retry.
    
            If ``False``, then retries are disabled and any exception is raised
            immediately. Also, instead of raising a MaxRetryError on redirects,
            the redirect response will be returned.
    
        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
        :param redirect:
            If True, automatically handle redirects (status codes 301, 302,
            303, 307, 308). Each redirect counts as a retry. Disabling retries
            will disable redirect, too.
    
        :param assert_same_host:
            If ``True``, will make sure that the host of the pool requests is
            consistent else will raise HostChangedError. When ``False``, you can
            use the pool on an HTTP proxy and request foreign hosts.
    
        :param timeout:
            If specified, overrides the default timeout for this one
            request. It may be a float (in seconds) or an instance of
            :class:`urllib3.util.Timeout`.
    
        :param pool_timeout:
            If set and the pool is set to block=True, then this method will
            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
            connection is available within the time period.
    
        :param bool preload_content:
            If True, the response's body will be preloaded into memory.
    
        :param bool decode_content:
            If True, will attempt to decode the body based on the
            'content-encoding' header.
    
        :param release_conn:
            If False, then the urlopen call will not release the connection
            back into the pool once a response is received (but will release if
            you read the entire contents of the response such as when
            `preload_content=True`). This is useful if you're not preloading
            the response's content immediately. You will need to call
            ``r.release_conn()`` on the response ``r`` to return the connection
            back into the pool. If None, it takes the value of ``preload_content``
            which defaults to ``True``.
    
        :param bool chunked:
            If True, urllib3 will send the body using chunked transfer
            encoding. Otherwise, urllib3 will send the body using the standard
            content-length form. Defaults to False.
    
        :param int body_pos:
            Position to seek to in file-like body in the event of a retry or
            redirect. Typically this won't need to be set because urllib3 will
            auto-populate the value when needed.
        """
        parsed_url = parse_url(url)
        destination_scheme = parsed_url.scheme
    
        if headers is None:
            headers = self.headers
    
        if not isinstance(retries, Retry):
            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
    
        if release_conn is None:
            release_conn = preload_content
    
        # Check host
        if assert_same_host and not self.is_same_host(url):
            raise HostChangedError(self, url, retries)
    
        # Ensure that the URL we're connecting to is properly encoded
        if url.startswith("/"):
            url = to_str(_encode_target(url))
        else:
            url = to_str(parsed_url.url)
    
        conn = None
    
        # Track whether `conn` needs to be released before
        # returning/raising/recursing. Update this variable if necessary, and
        # leave `release_conn` constant throughout the function. That way, if
        # the function recurses, the original value of `release_conn` will be
        # passed down into the recursive call, and its value will be respected.
        #
        # See issue #651 [1] for details.
        #
        # [1] &lt;https://github.com/urllib3/urllib3/issues/651&gt;
        release_this_conn = release_conn
    
        http_tunnel_required = connection_requires_http_tunnel(
            self.proxy, self.proxy_config, destination_scheme
        )
    
        # Merge the proxy headers. Only done when not using HTTP CONNECT. We
        # have to copy the headers dict so we can safely change it without those
        # changes being reflected in anyone else's copy.
        if not http_tunnel_required:
            headers = headers.copy()  # type: ignore[attr-defined]
            headers.update(self.proxy_headers)  # type: ignore[union-attr]
    
        # Must keep the exception bound to a separate variable or else Python 3
        # complains about UnboundLocalError.
        err = None
    
        # Keep track of whether we cleanly exited the except block. This
        # ensures we do proper cleanup in finally.
        clean_exit = False
    
        # Rewind body position, if needed. Record current position
        # for future rewinds in the event of a redirect/retry.
        body_pos = set_file_position(body, body_pos)
    
        try:
            # Request a connection from the queue.
            timeout_obj = self._get_timeout(timeout)
            conn = self._get_conn(timeout=pool_timeout)
    
            conn.timeout = timeout_obj.connect_timeout  # type: ignore[assignment]
    
            # Is this a closed/new connection that requires CONNECT tunnelling?
            if self.proxy is not None and http_tunnel_required and conn.is_closed:
                try:
                    self._prepare_proxy(conn)
                except (BaseSSLError, OSError, SocketTimeout) as e:
                    self._raise_timeout(
                        err=e, url=self.proxy.url, timeout_value=conn.timeout
                    )
                    raise
    
            # If we're going to release the connection in ``finally:``, then
            # the response doesn't need to know about the connection. Otherwise
            # it will also try to release it and we'll have a double-release
            # mess.
            response_conn = conn if not release_conn else None
    
            # Make the request on the HTTPConnection object
            response = self._make_request(
                conn,
                method,
                url,
                timeout=timeout_obj,
                body=body,
                headers=headers,
                chunked=chunked,
                retries=retries,
                response_conn=response_conn,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )
    
            # Everything went great!
            clean_exit = True
    
        except EmptyPoolError:
            # Didn't get a connection from the pool, no need to clean up
            clean_exit = True
            release_this_conn = False
            raise
    
        except (
            TimeoutError,
            HTTPException,
            OSError,
            ProtocolError,
            BaseSSLError,
            SSLError,
            CertificateError,
            ProxyError,
        ) as e:
            # Discard the connection for these exceptions. It will be
            # replaced during the next _get_conn() call.
            clean_exit = False
            new_e: Exception = e
            if isinstance(e, (BaseSSLError, CertificateError)):
                new_e = SSLError(e)
            if isinstance(
                new_e,
                (
                    OSError,
                    NewConnectionError,
                    TimeoutError,
                    SSLError,
                    HTTPException,
                ),
            ) and (conn and conn.proxy and not conn.has_connected_to_proxy):
                new_e = _wrap_proxy_error(new_e, conn.proxy.scheme)
            elif isinstance(new_e, (OSError, HTTPException)):
                new_e = ProtocolError("Connection aborted.", new_e)
    
            retries = retries.increment(
                method, url, error=new_e, _pool=self, _stacktrace=sys.exc_info()[2]
            )
            retries.sleep()
    
            # Keep track of the error for the retry warning.
            err = e
    
        finally:
            if not clean_exit:
                # We hit some kind of exception, handled or otherwise. We need
                # to throw the connection away unless explicitly told not to.
                # Close the connection, set the variable to None, and make sure
                # we put the None back in the pool to avoid leaking it.
                if conn:
                    conn.close()
                    conn = None
                release_this_conn = True
    
            if release_this_conn:
                # Put the connection back to be reused. If the connection is
                # expired then it will be None, which will get replaced with a
                # fresh connection during _get_conn.
                self._put_conn(conn)
    
        if not conn:
            # Try again
            log.warning(
                "Retrying (%r) after connection broken by '%r': %s", retries, err, url
            )
&gt;           return self.urlopen(
                method,
                url,
                body,
                headers,
                retries,
                redirect,
                assert_same_host,
                timeout=timeout,
                pool_timeout=pool_timeout,
                release_conn=release_conn,
                chunked=chunked,
                body_pos=body_pos,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:871: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
body = b'{"model": "facebook/opt-125m", "prompt": "Explain machine learning in simple terms.", "max_tokens": 100}'
headers = {'User-Agent': 'python-requests/2.32.3', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '104', 'Content-Type': 'application/json'}
retries = Retry(total=0, connect=None, read=None, redirect=None, status=None)
redirect = False, assert_same_host = False
timeout = Timeout(connect=60, read=60, total=None), pool_timeout = None
release_conn = False, chunked = False, body_pos = None, preload_content = False
decode_content = False, response_kw = {}
parsed_url = Url(scheme=None, auth=None, host=None, port=None, path='/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions', query=None, fragment=None)
destination_scheme = None, conn = None, release_this_conn = True
http_tunnel_required = False, err = None, clean_exit = False

    def urlopen(  # type: ignore[override]
        self,
        method: str,
        url: str,
        body: _TYPE_BODY | None = None,
        headers: typing.Mapping[str, str] | None = None,
        retries: Retry | bool | int | None = None,
        redirect: bool = True,
        assert_same_host: bool = True,
        timeout: _TYPE_TIMEOUT = _DEFAULT_TIMEOUT,
        pool_timeout: int | None = None,
        release_conn: bool | None = None,
        chunked: bool = False,
        body_pos: _TYPE_BODY_POSITION | None = None,
        preload_content: bool = True,
        decode_content: bool = True,
        **response_kw: typing.Any,
    ) -&gt; BaseHTTPResponse:
        """
        Get a connection from the pool and perform an HTTP request. This is the
        lowest level call for making a request, so you'll need to specify all
        the raw details.
    
        .. note::
    
           More commonly, it's appropriate to use a convenience method
           such as :meth:`request`.
    
        .. note::
    
           `release_conn` will only behave as expected if
           `preload_content=False` because we want to make
           `preload_content=False` the default behaviour someday soon without
           breaking backwards compatibility.
    
        :param method:
            HTTP request method (such as GET, POST, PUT, etc.)
    
        :param url:
            The URL to perform the request on.
    
        :param body:
            Data to send in the request body, either :class:`str`, :class:`bytes`,
            an iterable of :class:`str`/:class:`bytes`, or a file-like object.
    
        :param headers:
            Dictionary of custom headers to send, such as User-Agent,
            If-None-Match, etc. If None, pool headers are used. If provided,
            these headers completely replace any pool-specific headers.
    
        :param retries:
            Configure the number of retries to allow before raising a
            :class:`~urllib3.exceptions.MaxRetryError` exception.
    
            If ``None`` (default) will retry 3 times, see ``Retry.DEFAULT``. Pass a
            :class:`~urllib3.util.retry.Retry` object for fine-grained control
            over different types of retries.
            Pass an integer number to retry connection errors that many times,
            but no other types of errors. Pass zero to never retry.
    
            If ``False``, then retries are disabled and any exception is raised
            immediately. Also, instead of raising a MaxRetryError on redirects,
            the redirect response will be returned.
    
        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
    
        :param redirect:
            If True, automatically handle redirects (status codes 301, 302,
            303, 307, 308). Each redirect counts as a retry. Disabling retries
            will disable redirect, too.
    
        :param assert_same_host:
            If ``True``, will make sure that the host of the pool requests is
            consistent else will raise HostChangedError. When ``False``, you can
            use the pool on an HTTP proxy and request foreign hosts.
    
        :param timeout:
            If specified, overrides the default timeout for this one
            request. It may be a float (in seconds) or an instance of
            :class:`urllib3.util.Timeout`.
    
        :param pool_timeout:
            If set and the pool is set to block=True, then this method will
            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
            connection is available within the time period.
    
        :param bool preload_content:
            If True, the response's body will be preloaded into memory.
    
        :param bool decode_content:
            If True, will attempt to decode the body based on the
            'content-encoding' header.
    
        :param release_conn:
            If False, then the urlopen call will not release the connection
            back into the pool once a response is received (but will release if
            you read the entire contents of the response such as when
            `preload_content=True`). This is useful if you're not preloading
            the response's content immediately. You will need to call
            ``r.release_conn()`` on the response ``r`` to return the connection
            back into the pool. If None, it takes the value of ``preload_content``
            which defaults to ``True``.
    
        :param bool chunked:
            If True, urllib3 will send the body using chunked transfer
            encoding. Otherwise, urllib3 will send the body using the standard
            content-length form. Defaults to False.
    
        :param int body_pos:
            Position to seek to in file-like body in the event of a retry or
            redirect. Typically this won't need to be set because urllib3 will
            auto-populate the value when needed.
        """
        parsed_url = parse_url(url)
        destination_scheme = parsed_url.scheme
    
        if headers is None:
            headers = self.headers
    
        if not isinstance(retries, Retry):
            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
    
        if release_conn is None:
            release_conn = preload_content
    
        # Check host
        if assert_same_host and not self.is_same_host(url):
            raise HostChangedError(self, url, retries)
    
        # Ensure that the URL we're connecting to is properly encoded
        if url.startswith("/"):
            url = to_str(_encode_target(url))
        else:
            url = to_str(parsed_url.url)
    
        conn = None
    
        # Track whether `conn` needs to be released before
        # returning/raising/recursing. Update this variable if necessary, and
        # leave `release_conn` constant throughout the function. That way, if
        # the function recurses, the original value of `release_conn` will be
        # passed down into the recursive call, and its value will be respected.
        #
        # See issue #651 [1] for details.
        #
        # [1] &lt;https://github.com/urllib3/urllib3/issues/651&gt;
        release_this_conn = release_conn
    
        http_tunnel_required = connection_requires_http_tunnel(
            self.proxy, self.proxy_config, destination_scheme
        )
    
        # Merge the proxy headers. Only done when not using HTTP CONNECT. We
        # have to copy the headers dict so we can safely change it without those
        # changes being reflected in anyone else's copy.
        if not http_tunnel_required:
            headers = headers.copy()  # type: ignore[attr-defined]
            headers.update(self.proxy_headers)  # type: ignore[union-attr]
    
        # Must keep the exception bound to a separate variable or else Python 3
        # complains about UnboundLocalError.
        err = None
    
        # Keep track of whether we cleanly exited the except block. This
        # ensures we do proper cleanup in finally.
        clean_exit = False
    
        # Rewind body position, if needed. Record current position
        # for future rewinds in the event of a redirect/retry.
        body_pos = set_file_position(body, body_pos)
    
        try:
            # Request a connection from the queue.
            timeout_obj = self._get_timeout(timeout)
            conn = self._get_conn(timeout=pool_timeout)
    
            conn.timeout = timeout_obj.connect_timeout  # type: ignore[assignment]
    
            # Is this a closed/new connection that requires CONNECT tunnelling?
            if self.proxy is not None and http_tunnel_required and conn.is_closed:
                try:
                    self._prepare_proxy(conn)
                except (BaseSSLError, OSError, SocketTimeout) as e:
                    self._raise_timeout(
                        err=e, url=self.proxy.url, timeout_value=conn.timeout
                    )
                    raise
    
            # If we're going to release the connection in ``finally:``, then
            # the response doesn't need to know about the connection. Otherwise
            # it will also try to release it and we'll have a double-release
            # mess.
            response_conn = conn if not release_conn else None
    
            # Make the request on the HTTPConnection object
            response = self._make_request(
                conn,
                method,
                url,
                timeout=timeout_obj,
                body=body,
                headers=headers,
                chunked=chunked,
                retries=retries,
                response_conn=response_conn,
                preload_content=preload_content,
                decode_content=decode_content,
                **response_kw,
            )
    
            # Everything went great!
            clean_exit = True
    
        except EmptyPoolError:
            # Didn't get a connection from the pool, no need to clean up
            clean_exit = True
            release_this_conn = False
            raise
    
        except (
            TimeoutError,
            HTTPException,
            OSError,
            ProtocolError,
            BaseSSLError,
            SSLError,
            CertificateError,
            ProxyError,
        ) as e:
            # Discard the connection for these exceptions. It will be
            # replaced during the next _get_conn() call.
            clean_exit = False
            new_e: Exception = e
            if isinstance(e, (BaseSSLError, CertificateError)):
                new_e = SSLError(e)
            if isinstance(
                new_e,
                (
                    OSError,
                    NewConnectionError,
                    TimeoutError,
                    SSLError,
                    HTTPException,
                ),
            ) and (conn and conn.proxy and not conn.has_connected_to_proxy):
                new_e = _wrap_proxy_error(new_e, conn.proxy.scheme)
            elif isinstance(new_e, (OSError, HTTPException)):
                new_e = ProtocolError("Connection aborted.", new_e)
    
&gt;           retries = retries.increment(
                method, url, error=new_e, _pool=self, _stacktrace=sys.exc_info()[2]
            )

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/connectionpool.py:841: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = Retry(total=0, connect=None, read=None, redirect=None, status=None)
method = 'POST'
url = '/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
response = None
error = ReadTimeoutError("HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)")
_pool = &lt;urllib3.connectionpool.HTTPConnectionPool object at 0x7fbb68f85450&gt;
_stacktrace = &lt;traceback object at 0x7fbb69226b80&gt;

    def increment(
        self,
        method: str | None = None,
        url: str | None = None,
        response: BaseHTTPResponse | None = None,
        error: Exception | None = None,
        _pool: ConnectionPool | None = None,
        _stacktrace: TracebackType | None = None,
    ) -&gt; Self:
        """Return a new Retry object with incremented retry counters.
    
        :param response: A response object, or None, if the server did not
            return a response.
        :type response: :class:`~urllib3.response.BaseHTTPResponse`
        :param Exception error: An error encountered during the request, or
            None if the response was received successfully.
    
        :return: A new ``Retry`` object.
        """
        if self.total is False and error:
            # Disabled, indicate to re-raise the error.
            raise reraise(type(error), error, _stacktrace)
    
        total = self.total
        if total is not None:
            total -= 1
    
        connect = self.connect
        read = self.read
        redirect = self.redirect
        status_count = self.status
        other = self.other
        cause = "unknown"
        status = None
        redirect_location = None
    
        if error and self._is_connection_error(error):
            # Connect retry?
            if connect is False:
                raise reraise(type(error), error, _stacktrace)
            elif connect is not None:
                connect -= 1
    
        elif error and self._is_read_error(error):
            # Read retry?
            if read is False or method is None or not self._is_method_retryable(method):
                raise reraise(type(error), error, _stacktrace)
            elif read is not None:
                read -= 1
    
        elif error:
            # Other retry?
            if other is not None:
                other -= 1
    
        elif response and response.get_redirect_location():
            # Redirect retry?
            if redirect is not None:
                redirect -= 1
            cause = "too many redirects"
            response_redirect_location = response.get_redirect_location()
            if response_redirect_location:
                redirect_location = response_redirect_location
            status = response.status
    
        else:
            # Incrementing because of a server error like a 500 in
            # status_forcelist and the given method is in the allowed_methods
            cause = ResponseError.GENERIC_ERROR
            if response and response.status:
                if status_count is not None:
                    status_count -= 1
                cause = ResponseError.SPECIFIC_ERROR.format(status_code=response.status)
                status = response.status
    
        history = self.history + (
            RequestHistory(method, url, error, status, redirect_location),
        )
    
        new_retry = self.new(
            total=total,
            connect=connect,
            read=read,
            redirect=redirect,
            status=status_count,
            other=other,
            history=history,
        )
    
        if new_retry.is_exhausted():
            reason = error or ResponseError(cause)
&gt;           raise MaxRetryError(_pool, url, reason) from reason  # type: ignore[arg-type]
E           urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Max retries exceeded with url: /kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions (Caused by ReadTimeoutError("HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)"))

../../python/kserve/.venv/lib64/python3.11/site-packages/urllib3/util/retry.py:519: MaxRetryError

During handling of the above exception, another exception occurred:

test_case = LoRATestCase(base_refs=['router-no-scheduler', 'workload-single-cpu', 'model-fb-opt-125m-with-multiple-lora'], prompt=..._name='lora-multiple-adapters-test', endpoint='/v1/completions', max_tokens=100, wait_timeout=900, response_timeout=60)

    @pytest.mark.parametrize(
        "test_case",
        [
            pytest.param(
                LoRATestCase(
                    base_refs=[
                        "router-no-scheduler",
                        "workload-single-cpu",
                        "model-fb-opt-125m-with-lora-hf",
                    ],
                    prompt="What is Kubernetes?",
                    expected_adapter_names=["lora-adapter-1"],
                    service_name="lora-single-adapter-test",
                ),
                marks=[
                    pytest.mark.llminferenceservice,
                    pytest.mark.cluster_cpu,
                    pytest.mark.lora,
                ],
                id="single-lora-adapter-hf",
            ),
            pytest.param(
                LoRATestCase(
                    base_refs=[
                        "router-no-scheduler",
                        "workload-single-cpu",
                        "model-fb-opt-125m-with-multiple-lora",
                    ],
                    prompt="Explain machine learning in simple terms.",
                    expected_adapter_names=["lora-adapter-1", "lora-adapter-2"],
                    service_name="lora-multiple-adapters-test",
                ),
                marks=[
                    pytest.mark.llminferenceservice,
                    pytest.mark.cluster_cpu,
                    pytest.mark.lora,
                ],
                id="multiple-lora-adapters",
            ),
        ],
    )
    @log_execution
    def test_llm_with_lora_adapters(test_case: LoRATestCase):
        """Test LLMInferenceService with LoRA adapters."""
&gt;       run_lora_test(test_case)

llmisvc/test_llm_lora_adapters.py:248: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

test_case = LoRATestCase(base_refs=['router-no-scheduler', 'workload-single-cpu', 'model-fb-opt-125m-with-multiple-lora'], prompt=..._name='lora-multiple-adapters-test', endpoint='/v1/completions', max_tokens=100, wait_timeout=900, response_timeout=60)

    def run_lora_test(test_case: LoRATestCase):
        """Execute a LoRA adapter test case."""
        inject_k8s_proxy()
        kserve_client = KServeClient(
            config_file=os.environ.get("KUBECONFIG", "~/.kube/config"),
            client_configuration=client.Configuration(),
        )
    
        test_id = generate_test_id(test_case)
        service_name = test_case.service_name or f"lora-test-{test_id}"
        model_name = _get_model_name_from_configs(test_case.base_refs)
        created_configs = []
        llm_service = None
    
        try:
            # Create unique LLMInferenceServiceConfig resources for each base ref
            unique_base_refs = []
            for base_ref in test_case.base_refs:
                if base_ref not in LLMINFERENCESERVICE_CONFIGS:
                    raise ValueError(f"Unknown base reference: {base_ref}")
    
                # Generate unique config name to avoid conflicts in parallel test runs
                unique_config_name = generate_k8s_safe_suffix(base_ref, [service_name])
                unique_base_refs.append(unique_config_name)
    
                config = LLMINFERENCESERVICE_CONFIGS[base_ref]
                config_body = {
                    "apiVersion": "serving.kserve.io/v1alpha1",
                    "kind": "LLMInferenceServiceConfig",
                    "metadata": {
                        "name": unique_config_name,
                        "namespace": KSERVE_TEST_NAMESPACE,
                    },
                    "spec": config,
                }
    
                logger.info("Creating LLMInferenceServiceConfig: %s", unique_config_name)
                _create_or_update_llmisvc_config(
                    kserve_client, config_body, KSERVE_TEST_NAMESPACE
                )
                created_configs.append(unique_config_name)
    
            # Create the service with unique base refs
            llm_service = build_llm_service_from_refs(service_name, unique_base_refs)
            if not llm_service.metadata.annotations:
                llm_service.metadata.annotations = {}
            llm_service.metadata.annotations["security.opendatahub.io/enable-auth"] = (
                "false"
            )
            logger.info("Creating LLMInferenceService: %s", service_name)
            create_llmisvc(kserve_client, llm_service)
    
            # Wait for service to be ready
            logger.info("Waiting for service %s to be ready...", service_name)
            wait_for_llm_isvc_ready(
                kserve_client, llm_service, timeout_seconds=test_case.wait_timeout
            )
    
            # Get inference URL
            base_url = get_llm_service_url(kserve_client, llm_service)
            inference_url = base_url + test_case.endpoint
    
            # Test base model inference
            logger.info("Testing base model inference...")
            base_payload = {
                "model": model_name,
                "prompt": test_case.prompt,
                "max_tokens": test_case.max_tokens,
            }
    
&gt;           base_response = post_with_retry(
                inference_url,
                json_data=base_payload,
                timeout=test_case.response_timeout,
            )

llmisvc/test_llm_lora_adapters.py:150: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

url = 'http://a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'

    def post_with_retry(
        url: str,
        *,
        headers: Dict = None,
        json_data: Union[Dict, List] = None,
        data: Union[str, bytes] = None,
        stream: bool = False,
        timeout: float = None,
        total_retries: int = DEFAULT_RETRY_TOTAL,
        backoff_factor: float = DEFAULT_RETRY_BACKOFF_FACTOR,
        retry_status_codes=DEFAULT_RETRY_STATUS_CODES,
    ) -&gt; requests.Response:
        """
        Send POST request with retries for transient HTTP and network failures.
        """
        if json_data is not None and data is not None:
            raise ValueError("Only one of json_data or data can be provided.")
    
        with _retry_session(
            ["POST"], total_retries, backoff_factor, retry_status_codes
        ) as session:
&gt;           return session.post(
                url,
                json=json_data,
                data=data,
                headers=headers,
                stream=stream,
                timeout=timeout,
            )

common/http_retry.py:70: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;requests.sessions.Session object at 0x7fbb68f90950&gt;
url = 'http://a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
data = None
json = {'max_tokens': 100, 'model': 'facebook/opt-125m', 'prompt': 'Explain machine learning in simple terms.'}
kwargs = {'headers': None, 'stream': False, 'timeout': 60}

    def post(self, url, data=None, json=None, **kwargs):
        r"""Sends a POST request. Returns :class:`Response` object.
    
        :param url: URL for the new :class:`Request` object.
        :param data: (optional) Dictionary, list of tuples, bytes, or file-like
            object to send in the body of the :class:`Request`.
        :param json: (optional) json to send in the body of the :class:`Request`.
        :param \*\*kwargs: Optional arguments that ``request`` takes.
        :rtype: requests.Response
        """
    
&gt;       return self.request("POST", url, data=data, json=json, **kwargs)

../../python/kserve/.venv/lib64/python3.11/site-packages/requests/sessions.py:637: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;requests.sessions.Session object at 0x7fbb68f90950&gt;, method = 'POST'
url = 'http://a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com/kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions'
params = None, data = None, headers = None, cookies = None, files = None
auth = None, timeout = 60, allow_redirects = True, proxies = {}, hooks = None
stream = False, verify = None, cert = None
json = {'max_tokens': 100, 'model': 'facebook/opt-125m', 'prompt': 'Explain machine learning in simple terms.'}

    def request(
        self,
        method,
        url,
        params=None,
        data=None,
        headers=None,
        cookies=None,
        files=None,
        auth=None,
        timeout=None,
        allow_redirects=True,
        proxies=None,
        hooks=None,
        stream=None,
        verify=None,
        cert=None,
        json=None,
    ):
        """Constructs a :class:`Request &lt;Request&gt;`, prepares it and sends it.
        Returns :class:`Response &lt;Response&gt;` object.
    
        :param method: method for the new :class:`Request` object.
        :param url: URL for the new :class:`Request` object.
        :param params: (optional) Dictionary or bytes to be sent in the query
            string for the :class:`Request`.
        :param data: (optional) Dictionary, list of tuples, bytes, or file-like
            object to send in the body of the :class:`Request`.
        :param json: (optional) json to send in the body of the
            :class:`Request`.
        :param headers: (optional) Dictionary of HTTP Headers to send with the
            :class:`Request`.
        :param cookies: (optional) Dict or CookieJar object to send with the
            :class:`Request`.
        :param files: (optional) Dictionary of ``'filename': file-like-objects``
            for multipart encoding upload.
        :param auth: (optional) Auth tuple or callable to enable
            Basic/Digest/Custom HTTP Auth.
        :param timeout: (optional) How long to wait for the server to send
            data before giving up, as a float, or a :ref:`(connect timeout,
            read timeout) &lt;timeouts&gt;` tuple.
        :type timeout: float or tuple
        :param allow_redirects: (optional) Set to True by default.
        :type allow_redirects: bool
        :param proxies: (optional) Dictionary mapping protocol or protocol and
            hostname to the URL of the proxy.
        :param hooks: (optional) Dictionary mapping hook name to one event or
            list of events, event must be callable.
        :param stream: (optional) whether to immediately download the response
            content. Defaults to ``False``.
        :param verify: (optional) Either a boolean, in which case it controls whether we verify
            the server's TLS certificate, or a string, in which case it must be a path
            to a CA bundle to use. Defaults to ``True``. When set to
            ``False``, requests will accept any TLS certificate presented by
            the server, and will ignore hostname mismatches and/or expired
            certificates, which will make your application vulnerable to
            man-in-the-middle (MitM) attacks. Setting verify to ``False``
            may be useful during local development or testing.
        :param cert: (optional) if String, path to ssl client cert file (.pem).
            If Tuple, ('cert', 'key') pair.
        :rtype: requests.Response
        """
        # Create the Request.
        req = Request(
            method=method.upper(),
            url=url,
            headers=headers,
            files=files,
            data=data or {},
            json=json,
            params=params or {},
            auth=auth,
            cookies=cookies,
            hooks=hooks,
        )
        prep = self.prepare_request(req)
    
        proxies = proxies or {}
    
        settings = self.merge_environment_settings(
            prep.url, proxies, stream, verify, cert
        )
    
        # Send the request.
        send_kwargs = {
            "timeout": timeout,
            "allow_redirects": allow_redirects,
        }
        send_kwargs.update(settings)
&gt;       resp = self.send(prep, **send_kwargs)

../../python/kserve/.venv/lib64/python3.11/site-packages/requests/sessions.py:589: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;requests.sessions.Session object at 0x7fbb68f90950&gt;
request = &lt;PreparedRequest [POST]&gt;
kwargs = {'cert': None, 'proxies': OrderedDict(), 'stream': False, 'timeout': 60, ...}
allow_redirects = True, stream = False, hooks = {'response': []}
adapter = &lt;requests.adapters.HTTPAdapter object at 0x7fbb68f84e50&gt;
start = 1783373808.9848943

    def send(self, request, **kwargs):
        """Send a given PreparedRequest.
    
        :rtype: requests.Response
        """
        # Set defaults that the hooks can utilize to ensure they always have
        # the correct parameters to reproduce the previous request.
        kwargs.setdefault("stream", self.stream)
        kwargs.setdefault("verify", self.verify)
        kwargs.setdefault("cert", self.cert)
        if "proxies" not in kwargs:
            kwargs["proxies"] = resolve_proxies(request, self.proxies, self.trust_env)
    
        # It's possible that users might accidentally send a Request object.
        # Guard against that specific failure case.
        if isinstance(request, Request):
            raise ValueError("You can only send PreparedRequests.")
    
        # Set up variables needed for resolve_redirects and dispatching of hooks
        allow_redirects = kwargs.pop("allow_redirects", True)
        stream = kwargs.get("stream")
        hooks = request.hooks
    
        # Get the appropriate adapter to use
        adapter = self.get_adapter(url=request.url)
    
        # Start time (approximately) of the request
        start = preferred_clock()
    
        # Send the request
&gt;       r = adapter.send(request, **kwargs)

../../python/kserve/.venv/lib64/python3.11/site-packages/requests/sessions.py:703: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = &lt;requests.adapters.HTTPAdapter object at 0x7fbb68f84e50&gt;
request = &lt;PreparedRequest [POST]&gt;, stream = False
timeout = Timeout(connect=60, read=60, total=None), verify = '/tmp/ca.crt'
cert = None, proxies = OrderedDict()

    def send(
        self, request, stream=False, timeout=None, verify=True, cert=None, proxies=None
    ):
        """Sends PreparedRequest object. Returns Response object.
    
        :param request: The :class:`PreparedRequest &lt;PreparedRequest&gt;` being sent.
        :param stream: (optional) Whether to stream the request content.
        :param timeout: (optional) How long to wait for the server to send
            data before giving up, as a float, or a :ref:`(connect timeout,
            read timeout) &lt;timeouts&gt;` tuple.
        :type timeout: float or tuple or urllib3 Timeout object
        :param verify: (optional) Either a boolean, in which case it controls whether
            we verify the server's TLS certificate, or a string, in which case it
            must be a path to a CA bundle to use
        :param cert: (optional) Any user-provided SSL certificate to be trusted.
        :param proxies: (optional) The proxies dictionary to apply to the request.
        :rtype: requests.Response
        """
    
        try:
            conn = self.get_connection_with_tls_context(
                request, verify, proxies=proxies, cert=cert
            )
        except LocationValueError as e:
            raise InvalidURL(e, request=request)
    
        self.cert_verify(conn, request.url, verify, cert)
        url = self.request_url(request, proxies)
        self.add_headers(
            request,
            stream=stream,
            timeout=timeout,
            verify=verify,
            cert=cert,
            proxies=proxies,
        )
    
        chunked = not (request.body is None or "Content-Length" in request.headers)
    
        if isinstance(timeout, tuple):
            try:
                connect, read = timeout
                timeout = TimeoutSauce(connect=connect, read=read)
            except ValueError:
                raise ValueError(
                    f"Invalid timeout {timeout}. Pass a (connect, read) timeout tuple, "
                    f"or a single float to set both timeouts to the same value."
                )
        elif isinstance(timeout, TimeoutSauce):
            pass
        else:
            timeout = TimeoutSauce(connect=timeout, read=timeout)
    
        try:
            resp = conn.urlopen(
                method=request.method,
                url=url,
                body=request.body,
                headers=request.headers,
                redirect=False,
                assert_same_host=False,
                preload_content=False,
                decode_content=False,
                retries=self.max_retries,
                timeout=timeout,
                chunked=chunked,
            )
    
        except (ProtocolError, OSError) as err:
            raise ConnectionError(err, request=request)
    
        except MaxRetryError as e:
            if isinstance(e.reason, ConnectTimeoutError):
                # TODO: Remove this in 3.0.0: see #2811
                if not isinstance(e.reason, NewConnectionError):
                    raise ConnectTimeout(e, request=request)
    
            if isinstance(e.reason, ResponseError):
                raise RetryError(e, request=request)
    
            if isinstance(e.reason, _ProxyError):
                raise ProxyError(e, request=request)
    
            if isinstance(e.reason, _SSLError):
                # This branch is for urllib3 v1.22 and later.
                raise SSLError(e, request=request)
    
&gt;           raise ConnectionError(e, request=request)
E           requests.exceptions.ConnectionError: HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Max retries exceeded with url: /kserve-ci-e2e-test/lora-multiple-adapters-test/v1/completions (Caused by ReadTimeoutError("HTTPConnectionPool(host='a6c719f352bff4273af2e2b406e6cfaa-1772363841.us-east-1.elb.amazonaws.com', port=80): Read timed out. (read timeout=60)"))

../../python/kserve/.venv/lib64/python3.11/site-packages/requests/adapters.py:700: ConnectionError</failure></testcase><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-with-refs-pd-scheduler-managed-workload-pd-cpu-model-fb-opt-125m]" time="219.531" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-no-scheduler-workload-single-cpu-model-fb-opt-125m]" time="524.243" /><testcase classname="llmisvc.test_llm_tls" name="test_llm_tls_resources[cluster_cpu-cluster_single_node-router-managed-workload-single-cpu-model-fb-opt-125m]" time="166.929" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_multi_node-router-managed-workload-simulated-dp-ep-cpu-model-fb-opt-125m]" time="298.648" /><testcase classname="llmisvc.test_prestop_hook" name="test_prestop_hook[cluster_cpu-cluster_single_node-router-managed-workload-single-cpu-model-fb-opt-125m]" time="250.073" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-scheduler-with-inline-config-workload-llmd-simulator]" time="66.971" /><testcase classname="llmisvc.test_rolling_upgrade" name="test_rolling_upgrade_coordination[cluster_cpu-cluster_single_node-router-managed-workload-llmd-simulator-model-fb-opt-125m]" time="92.819" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-workload-llmd-simulator-model-qwen2.5-0.5b]" time="82.150" /><testcase classname="llmisvc.test_storage_version_migration.TestStorageVersionMigration" name="test_storage_version_migration_after_simulated_upgrade" time="96.925" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-scheduler-with-configmap-ref-workload-llmd-simulator]" time="72.878" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-scheduler-with-custom-template-workload-llmd-simulator]" time="80.232" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-scheduler-with-replicas-workload-llmd-simulator]" time="73.142" /><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-scheduler-v06-pd-config-migration-workload-llmd-simulator-pd]" time="1145.856"><failure message="AssertionError: Service returned 502:">test_case = TestCase(base_refs=['router-managed', 'scheduler-v06-pd-config-migration', 'workload-llmd-simulator-pd'], prompt='KSer...              {'name': 'workload-llmd-simulator-pd-sche-64d0fc8b'}]},
 'status': None}, model_name='facebook/opt-125m')

    @pytest.mark.llminferenceservice
    @pytest.mark.asyncio(loop_scope="session")
    @pytest.mark.parametrize(
        "test_case",
        [
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-with-gateway-ref",
                        "router-with-managed-route",
                        "model-fb-opt-125m",
                        "workload-llmd-simulator",
                    ],
                    endpoint="/v1/completions",
                    prompt="KServe is a",
                    payload_formatter=completions_payload,
                    response_assertion=create_response_assertion(with_field="choices"),
                    expected_gateway=ROUTER_GATEWAYS[0],
                    before_test=[
                        lambda: create_router_resources(
                            gateways=[ROUTER_GATEWAYS[0]],
                        )
                    ],
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.llmd_simulator,
                    pytest.mark.custom_gateway,
                ],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "workload-single-cpu",
                        "model-fb-opt-125m",
                    ],
                    prompt="KServe is a",
                    payload_formatter=completions_payload,
                    response_assertion=assert_200_with_choices,
                ),
                marks=[pytest.mark.cluster_cpu, pytest.mark.cluster_single_node],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-custom-route-timeout",
                        "scheduler-managed",
                        "workload-single-cpu",
                        "model-fb-opt-125m",
                    ],
                    prompt="KServe is a",
                    service_name="custom-route-timeout-test",
                ),
                marks=[pytest.mark.cluster_cpu, pytest.mark.cluster_single_node],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-with-refs",
                        "scheduler-managed",
                        "workload-single-cpu",
                        "model-fb-opt-125m",
                    ],
                    prompt="KServe is a",
                    service_name="router-with-refs-test",
                    expected_gateway=ROUTER_GATEWAYS[0],
                    before_test=[
                        lambda: create_router_resources(
                            gateways=[ROUTER_GATEWAYS[0]],
                            routes=[ROUTER_ROUTES[0], ROUTER_ROUTES[1]],
                        )
                    ],
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.custom_gateway,
                ],
            ),
            pytest.param(
                TestCase(
                    base_refs=["router-managed", "workload-pd-cpu", "model-fb-opt-125m"],
                    prompt="You are an expert in Kubernetes-native machine learning serving platforms, with deep knowledge of the KServe project. "
                    "Explain the challenges of serving large-scale models, GPU scheduling, and how KServe integrates with capabilities like multi-model serving. "
                    "Provide a detailed comparison with open source alternatives, focusing on operational trade-offs.",
                    response_assertion=assert_200_with_choices,
                ),
                marks=[pytest.mark.cluster_cpu, pytest.mark.cluster_single_node],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-custom-route-timeout-pd",
                        "scheduler-managed",
                        "workload-pd-cpu",
                        "model-fb-opt-125m",
                    ],
                    prompt="You are an expert in Kubernetes-native machine learning serving platforms, with deep knowledge of the KServe project. "
                    "Explain the challenges of serving large-scale models, GPU scheduling, and how KServe integrates with capabilities like multi-model serving. "
                    "Provide a detailed comparison with open source alternatives, focusing on operational trade-offs.",
                    service_name="custom-route-timeout-pd-test",
                    response_assertion=assert_200_with_choices,
                ),
                marks=[pytest.mark.cluster_cpu, pytest.mark.cluster_single_node],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-with-refs-pd",
                        "scheduler-managed",
                        "workload-pd-cpu",
                        "model-fb-opt-125m",
                    ],
                    prompt="You are an expert in Kubernetes-native machine learning serving platforms, with deep knowledge of the KServe project. "
                    "Explain the challenges of serving large-scale models, GPU scheduling, and how KServe integrates with capabilities like multi-model serving. "
                    "Provide a detailed comparison with open source alternatives, focusing on operational trade-offs.",
                    service_name="router-with-refs-pd-test",
                    response_assertion=assert_200_with_choices,
                    expected_gateway=ROUTER_GATEWAYS[1],
                    before_test=[
                        lambda: create_router_resources(
                            gateways=[ROUTER_GATEWAYS[1]],
                            routes=[ROUTER_ROUTES[2], ROUTER_ROUTES[3]],
                        )
                    ],
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.custom_gateway,
                ],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "workload-dp-ep-gpu",
                        "workload-dp-ep-prefill-gpu",
                        "model-deepseek-v2-lite",
                    ],
                    prompt="Delve into the multifaceted implications of a fully disaggregated cloud architecture, specifically "
                    "where the compute plane (P) and the data plane (D) are independently deployed and managed for a "
                    "geographically distributed, high-throughput, low-latency microservices ecosystem. Beyond the "
                    "fundamental challenges of network latency and data consistency, elaborate on the advanced "
                    "considerations and trade-offs inherent in such a setup: 1. Network Architecture and Protocols: "
                    "How would the network fabric and underlying protocols (e.g., RDMA, custom transport layers) need to "
                    "evolve to support optimal performance and minimize inter-plane communication overhead, especially for "
                    "synchronous operations? Discuss the role of network programmability (e.g., SDN, P4) in dynamically "
                    "optimizing routing and traffic flow between P and D. 2. Advanced Data Consistency and Durability: "
                    "Explore sophisticated data consistency models (e.g., causal consistency, strong eventual consistency) "
                    "and their applicability in balancing performance and data integrity across a globally distributed data plane. "
                    "Detail strategies for ensuring data durability and fault tolerance, including multi-region replication, "
                    "intelligent partitioning, and recovery mechanisms in the event of partial or full plane failures. "
                    "3. Dynamic Resource Orchestration and Cost Optimization: Analyze how an orchestration layer would intelligently "
                    "manage the independent scaling of compute (P) and data (D) resources, considering fluctuating workloads, "
                    "cost efficiency, and performance targets (e.g., using predictive analytics for resource provisioning). "
                    "Discuss mechanisms for dynamically reallocating compute nodes to different data partitions based on "
                    "workload patterns and data locality, potentially involving live migration strategies. "
                    "4. Security and Compliance in a Distributed Landscape: Address the enhanced security perimeter "
                    "challenges, including securing communication channels between P and D (encryption in transit, mutual TLS), "
                    "fine-grained access control to data at rest and in motion, and identity management across disaggregated "
                    "components. Discuss how such an architecture impacts compliance with regulatory frameworks (e.g., GDPR, HIPAA) "
                    "concerning data sovereignty, privacy, and auditability. 5. Operational Complexity and Observability: "
                    "Examine the increased complexity in monitoring, logging, and tracing across highly decoupled compute and "
                    "data planes. What specialized tooling and practices (e.g., distributed tracing with OpenTelemetry, advanced AIOps) "
                    "would be essential? How would incident response and troubleshooting differ in this disaggregated environment "
                    "compared to traditional integrated systems? Consider the challenges of pinpointing root causes across "
                    "independent failures. 6. Real-world Applicability and Future Trends: Identify specific industries "
                    "or use cases (e.g., high-frequency trading, IoT edge processing, large language model inference) "
                    "where the benefits of P/D disaggregation would strongly outweigh its complexities. "
                    "Conclude by speculating on emerging technologies or paradigms (e.g., serverless compute functions "
                    "directly interacting with object storage, in-memory disaggregation) that could further drive or "
                    "transform P/D disaggregation in cloud computing.",
                    max_tokens=2000,
                ),
                marks=[
                    pytest.mark.cluster_gpu,
                    pytest.mark.cluster_nvidia,
                    pytest.mark.cluster_nvidia_roce,
                ],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-no-scheduler",
                        "workload-single-cpu",
                        "model-fb-opt-125m",
                    ],
                    prompt="What is KServe?",
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.no_scheduler,
                ],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "workload-simulated-dp-ep-cpu",
                        "model-fb-opt-125m",
                    ],
                    prompt="This test simulates DP+EP that can run on CPU, the idea is to test the LWS-based deployment, "
                    "but without the resources requirements for DP+EP (GPUs and ROCe/IB).",
                ),
                marks=[pytest.mark.cluster_cpu, pytest.mark.cluster_multi_node],
            ),
            # Scheduler config tests
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "scheduler-with-inline-config",
                        "workload-llmd-simulator",
                    ],
                    prompt="KServe is a",
                    service_name="scheduler-inline-config-test",
                ),
                marks=[pytest.mark.cluster_cpu, pytest.mark.cluster_single_node],
            ),
            # Chat completions endpoint coverage
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "workload-llmd-simulator",
                        "model-qwen2.5-0.5b",
                    ],
                    model_name="Qwen/Qwen2.5-0.5B-Instruct",
                    endpoint="/v1/chat/completions",
                    prompt="What is KServe?",
                    payload_formatter=chat_completions_payload,
                    response_assertion=create_response_assertion(with_field="choices"),
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.llmd_simulator,
                ],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "scheduler-with-configmap-ref",
                        "workload-llmd-simulator",
                    ],
                    prompt="KServe is a",
                    service_name="scheduler-configmap-ref-test",
                    before_test=[create_scheduler_configmap],
                    after_test=[delete_scheduler_configmap],
                ),
                marks=[pytest.mark.cluster_cpu, pytest.mark.cluster_single_node],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "scheduler-with-replicas",
                        "workload-llmd-simulator",
                    ],
                    prompt="KServe is a",
                    service_name="scheduler-ha-replicas-test",
                ),
                marks=[pytest.mark.cluster_cpu, pytest.mark.cluster_single_node],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "scheduler-with-custom-template",
                        "workload-llmd-simulator",
                    ],
                    prompt="KServe is a",
                    service_name="scheduler-custom-template-test",
                ),
                marks=[pytest.mark.cluster_cpu, pytest.mark.cluster_single_node],
            ),
            # Scheduler v0.6 → v0.7 migration tests.
            # Deploy v0.6-style configs and verify the controller migrates them
            # so the v0.7 scheduler boots successfully.
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "scheduler-v06-pd-config-migration",
                        "workload-llmd-simulator-pd",
                    ],
                    prompt="KServe is a",
                    service_name="scheduler-v06-pd-migration-test",
                    response_assertion=assert_200_with_choices,
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.llmd_simulator,
                ],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "scheduler-v06-nonzero-threshold-migration",
                        "workload-llmd-simulator-pd",
                    ],
                    prompt="KServe is a",
                    service_name="scheduler-v06-threshold-migration-test",
                    response_assertion=assert_200_with_choices,
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.llmd_simulator,
                ],
            ),
            # Precise prefix KV cache routing test
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "scheduler-with-precise-prefix-cache-inline-config",
                        "workload-llmd-simulator-kvcache",
                    ],
                    prompt="KServe is a",
                    service_name="precise-prefix-cache-test",
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.llmd_simulator,
                ],
            ),
            # Models endpoint coverage
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "workload-llmd-simulator",
                    ],
                    endpoint="/v1/models",
                    response_assertion=create_response_assertion(with_field="data"),
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.llmd_simulator,
                ],
            ),
            # Model-based routing via X-Gateway-Model-Name header — /v1/completions
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "workload-llmd-simulator",
                    ],
                    endpoint="/v1/completions",
                    prompt="KServe is a",
                    payload_formatter=completions_payload,
                    response_assertion=assert_model_field_matches("facebook/opt-125m"),
                    url_getter=get_model_routing_url,
                    extra_headers={
                        MODEL_ROUTING_HEADER: f"publishers/{KSERVE_TEST_NAMESPACE}/models/facebook/opt-125m",
                    },
                    peers=[
                        TestCase(
                            base_refs=[
                                "router-managed",
                                "workload-llmd-simulator",
                                "model-qwen2.5-0.5b",
                            ],
                            endpoint="/v1/completions",
                            prompt="KServe is a",
                            payload_formatter=completions_payload,
                            response_assertion=assert_model_field_matches(
                                "Qwen/Qwen2.5-0.5B-Instruct"
                            ),
                            url_getter=get_model_routing_url,
                            extra_headers={
                                MODEL_ROUTING_HEADER: f"publishers/{KSERVE_TEST_NAMESPACE}/models/Qwen/Qwen2.5-0.5B-Instruct",
                            },
                        ),
                    ],
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.llmd_simulator,
                    pytest.mark.model_routing,
                ],
            ),
            # Model-based routing via X-Gateway-Model-Name header — /v1/chat/completions
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "workload-llmd-simulator",
                    ],
                    endpoint="/v1/chat/completions",
                    prompt="What is KServe?",
                    payload_formatter=chat_completions_payload,
                    response_assertion=assert_model_field_matches("facebook/opt-125m"),
                    url_getter=get_model_routing_url,
                    extra_headers={
                        MODEL_ROUTING_HEADER: f"publishers/{KSERVE_TEST_NAMESPACE}/models/facebook/opt-125m",
                    },
                    peers=[
                        TestCase(
                            base_refs=[
                                "router-managed",
                                "workload-llmd-simulator",
                                "model-qwen2.5-0.5b",
                            ],
                            endpoint="/v1/chat/completions",
                            prompt="What is KServe?",
                            payload_formatter=chat_completions_payload,
                            response_assertion=assert_model_field_matches(
                                "Qwen/Qwen2.5-0.5B-Instruct"
                            ),
                            url_getter=get_model_routing_url,
                            extra_headers={
                                MODEL_ROUTING_HEADER: f"publishers/{KSERVE_TEST_NAMESPACE}/models/Qwen/Qwen2.5-0.5B-Instruct",
                            },
                        ),
                    ],
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.llmd_simulator,
                    pytest.mark.model_routing,
                ],
            ),
            # Model-based routing via X-Gateway-Model-Name header — LoRA adapter
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "workload-single-cpu",
                        "model-fb-opt-125m-with-lora-hf",
                    ],
                    endpoint="/v1/completions",
                    prompt="KServe is a",
                    model_name=f"publishers/{KSERVE_TEST_NAMESPACE}/models/lora-adapter-1",
                    payload_formatter=completions_payload,
                    response_assertion=assert_model_field_matches(
                        f"publishers/{KSERVE_TEST_NAMESPACE}/models/lora-adapter-1"
                    ),
                    url_getter=get_model_routing_url,
                    extra_headers={
                        MODEL_ROUTING_HEADER: f"publishers/{KSERVE_TEST_NAMESPACE}/models/lora-adapter-1",
                    },
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.model_routing,
                    pytest.mark.lora,
                ],
            ),
            # Model-based routing via X-Gateway-Model-Name header — /v1/models (base + LoRA)
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "workload-single-cpu",
                        "model-fb-opt-125m-with-lora-hf",
                    ],
                    endpoint="/v1/models",
                    response_assertion=assert_models_contains(
                        "facebook/opt-125m",
                        f"publishers/{KSERVE_TEST_NAMESPACE}/models/facebook/opt-125m",
                        "lora-adapter-1",
                        f"publishers/{KSERVE_TEST_NAMESPACE}/models/lora-adapter-1",
                    ),
                    url_getter=get_model_routing_url,
                    extra_headers={
                        MODEL_ROUTING_HEADER: f"publishers/{KSERVE_TEST_NAMESPACE}/models/facebook/opt-125m",
                    },
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.model_routing,
                    pytest.mark.lora,
                ],
            ),
            # PVC storage tests -- validate direct PVC volume mount with real vLLM serving
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "workload-single-cpu",
                        "model-pvc",
                    ],
                    prompt="KServe is a",
                    response_assertion=assert_200_with_choices,
                    before_test=[ensure_pvc_with_model],
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.pvc_storage,
                ],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "workload-pd-cpu",
                        "model-pvc",
                    ],
                    prompt="KServe is a",
                    response_assertion=assert_200_with_choices,
                    before_test=[ensure_pvc_with_model],
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_single_node,
                    pytest.mark.pvc_storage,
                ],
            ),
            pytest.param(
                TestCase(
                    base_refs=[
                        "router-managed",
                        "workload-simulated-dp-ep-cpu",
                        "model-pvc",
                    ],
                    prompt="KServe is a",
                    before_test=[ensure_pvc_with_model],
                ),
                marks=[
                    pytest.mark.cluster_cpu,
                    pytest.mark.cluster_multi_node,
                    pytest.mark.pvc_storage,
                ],
            ),
        ],
        indirect=["test_case"],
        ids=generate_test_id,
    )
    @log_execution
    def test_llm_inference_service(test_case: TestCase):  # noqa: F811
        inject_k8s_proxy()
    
        kserve_client = KServeClient(
            config_file=os.environ.get("KUBECONFIG", "~/.kube/config"),
            client_configuration=client.Configuration(),
        )
    
        service_name = test_case.llm_service.metadata.name
        if not test_case.llm_service.metadata.annotations:
            test_case.llm_service.metadata.annotations = {}
    
        test_case.llm_service.metadata.annotations[
            "security.opendatahub.io/enable-auth"
        ] = "false"
        prefix = test_case.log_prefix
    
        test_failed = False
        try:
            print(f"{prefix} Creating LLMInferenceService {service_name}")
            create_llmisvc(kserve_client, test_case.llm_service)
            print(f"{prefix} Waiting for LLMInferenceService {service_name} to be ready")
            wait_for_llm_isvc_ready(
                kserve_client, test_case.llm_service, test_case.wait_timeout
            )
            print(f"{prefix} Waiting for model response from {service_name}")
&gt;           wait_for_model_response(
                kserve_client,
                test_case,
                test_case.wait_timeout,
                extra_headers=test_case.extra_headers,
            )

llmisvc/test_llm_inference_service.py:816: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

args = (&lt;kserve.api.kserve_client.KServeClient object at 0x7fbb682b4fd0&gt;, TestCase(base_refs=['router-managed', 'scheduler-v0...        {'name': 'workload-llmd-simulator-pd-sche-64d0fc8b'}]},
 'status': None}, model_name='facebook/opt-125m'), 900)
kwargs = {'extra_headers': None}, func_name = 'wait_for_model_response'
timestamp_start = '2026-07-06T22:04:22.329920', start_time = 1783375462.33029
duration = 1103.057543516159, timestamp_end = '2026-07-06T22:22:45.387835'

    @functools.wraps(func)
    def wrapper(*args, **kwargs):
        func_name = func.__name__
    
        timestamp_start = datetime.now().isoformat()
        logger.info(
            f"[{func_name}] [{timestamp_start}] start - args={args}, kwargs={kwargs}"
        )
        start_time = time.time()
    
        try:
&gt;           result = func(*args, **kwargs)

llmisvc/logging.py:40: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

kserve_client = &lt;kserve.api.kserve_client.KServeClient object at 0x7fbb682b4fd0&gt;
test_case = TestCase(base_refs=['router-managed', 'scheduler-v06-pd-config-migration', 'workload-llmd-simulator-pd'], prompt='KSer...              {'name': 'workload-llmd-simulator-pd-sche-64d0fc8b'}]},
 'status': None}, model_name='facebook/opt-125m')
timeout_seconds = 900, extra_headers = None

    @log_execution
    def wait_for_model_response(
        kserve_client: KServeClient,
        test_case: TestCase,  # noqa: F811
        timeout_seconds: int = 900,
        extra_headers: Optional[Dict[str, str]] = None,
    ) -&gt; str:
        def get_successful_response():
            try:
                if test_case.url_getter:
                    service_url = test_case.url_getter(kserve_client, test_case.llm_service)
                else:
                    service_url = get_llm_service_url(kserve_client, test_case.llm_service)
            except Exception as e:
                raise AssertionError(f"❌ Failed to get service URL: {e}") from e
    
            model_url = service_url + test_case.endpoint
    
            headers = {"Content-Type": "application/json"}
            if extra_headers:
                headers.update(extra_headers)
    
            if test_case.payload_formatter is not None:
                test_payload = test_case.payload_formatter(test_case)
            elif test_case.prompt is not None:
                test_payload = {
                    "model": test_case.model_name
                    if not extra_headers or MODEL_ROUTING_HEADER not in extra_headers
                    else extra_headers[MODEL_ROUTING_HEADER],
                    "prompt": test_case.prompt,
                    "max_tokens": test_case.max_tokens,
                }
            else:
                test_payload = None
    
            logger.info(f"Calling LLM service at {model_url} with payload {test_payload}")
            try:
                if test_payload is not None:
                    response = post_with_retry(
                        model_url,
                        headers=headers,
                        json_data=test_payload,
                        timeout=test_case.response_timeout,
                    )
                else:
                    response = get_with_retry(
                        model_url,
                        headers=headers,
                        timeout=test_case.response_timeout,
                    )
            except Exception as e:
                logger.error(f"❌ Failed to call model: {e}")
                raise AssertionError(f"❌ Failed to call model: {e}") from e
    
            logger.info(f"Model response is {response.status_code}: {response.text[:500]}")
    
            if 200 &lt;= response.status_code &lt; 300:
                return response
            raise AssertionError(
                f"Service returned {response.status_code}: {response.text}"
            )
    
&gt;       response = wait_for(get_successful_response, timeout=timeout_seconds, interval=5.0)

llmisvc/test_llm_inference_service.py:1119: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

assertion_fn = &lt;function wait_for_model_response.&lt;locals&gt;.get_successful_response at 0x7fbb6911c4a0&gt;
timeout = 900, interval = 5.0

    def wait_for(
        assertion_fn: Callable[[], Any], timeout: float = 5.0, interval: float = 0.1
    ) -&gt; Any:
        """Wait for the assertion to succeed within timeout."""
        deadline = time.time() + timeout
        last_msg = None
        while True:
            try:
&gt;               return assertion_fn()

llmisvc/test_llm_inference_service.py:1215: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

    def get_successful_response():
        try:
            if test_case.url_getter:
                service_url = test_case.url_getter(kserve_client, test_case.llm_service)
            else:
                service_url = get_llm_service_url(kserve_client, test_case.llm_service)
        except Exception as e:
            raise AssertionError(f"❌ Failed to get service URL: {e}") from e
    
        model_url = service_url + test_case.endpoint
    
        headers = {"Content-Type": "application/json"}
        if extra_headers:
            headers.update(extra_headers)
    
        if test_case.payload_formatter is not None:
            test_payload = test_case.payload_formatter(test_case)
        elif test_case.prompt is not None:
            test_payload = {
                "model": test_case.model_name
                if not extra_headers or MODEL_ROUTING_HEADER not in extra_headers
                else extra_headers[MODEL_ROUTING_HEADER],
                "prompt": test_case.prompt,
                "max_tokens": test_case.max_tokens,
            }
        else:
            test_payload = None
    
        logger.info(f"Calling LLM service at {model_url} with payload {test_payload}")
        try:
            if test_payload is not None:
                response = post_with_retry(
                    model_url,
                    headers=headers,
                    json_data=test_payload,
                    timeout=test_case.response_timeout,
                )
            else:
                response = get_with_retry(
                    model_url,
                    headers=headers,
                    timeout=test_case.response_timeout,
                )
        except Exception as e:
            logger.error(f"❌ Failed to call model: {e}")
            raise AssertionError(f"❌ Failed to call model: {e}") from e
    
        logger.info(f"Model response is {response.status_code}: {response.text[:500]}")
    
        if 200 &lt;= response.status_code &lt; 300:
            return response
&gt;       raise AssertionError(
            f"Service returned {response.status_code}: {response.text}"
        )
E       AssertionError: Service returned 502:

llmisvc/test_llm_inference_service.py:1115: AssertionError</failure></testcase><testcase classname="llmisvc.test_llm_inference_service" name="test_llm_inference_service[cluster_cpu-cluster_single_node-router-managed-scheduler-v06-nonzero-threshold-migration-workload-llmd-simulator-pd]" time="66.412" /></testsuite></testsuites>