[Feature] Support mixed deployment with yiyan adapter in develop (#3976)

* [Feature] Support mixed deployment with yiyan adapter in release2.2

* fix metrics

* add unit test

* add unit test

* add unit test

* fix ci

* fix for eb5

* fix ci

* fix ci

* fix ci

---------

Co-authored-by: YuBaoku <49938469+EmmonsCurse@users.noreply.github.com>
Co-authored-by: Jiang-Jia-Jun <163579578+Jiang-Jia-Jun@users.noreply.github.com>

.github/workflows/_pre_ce_test.yml

@@ -82,6 +82,9 @@ jobs:
           FD_ENGINE_QUEUE_PORT=$((42058 + DEVICE_PORT * 100))
           FD_METRICS_PORT=$((42078 + DEVICE_PORT * 100))
           FD_CACHE_QUEUE_PORT=$((42098 + DEVICE_PORT * 100))
+          FD_ZMQ_RECV_REQUEST_SERVER_PORT=$((42048 + DEVICE_PORT * 100))
+          FD_ZMQ_SEND_RESPONSE_SERVER_PORT=$((42038 + DEVICE_PORT * 100))
+          FD_ZMQ_CONTROL_CMD_SERVER_PORTS=$((42028 + DEVICE_PORT * 100))
           echo "Test ENV Parameter:"
           echo "========================================================="
           echo "FLASK_PORT=${FLASK_PORT}"

fastdeploy/engine/common_engine.py

@@ -37,12 +37,14 @@ from fastdeploy.inter_communicator import (
     EngineCacheQueue,
     EngineWorkerQueue,
     IPCSignal,
-    ZmqClient,
+    ZmqIpcServer,
+    ZmqTcpServer,
 )
 from fastdeploy.metrics.metrics import main_process_metrics
 from fastdeploy.metrics.trace_util import start_span, start_span_request
 from fastdeploy.model_executor.guided_decoding import schema_checker
 from fastdeploy.plugins.token_processor import load_token_processor_plugins
+from fastdeploy.splitwise.internal_adapter_utils import InternalAdapter
 from fastdeploy.splitwise.splitwise_connector import SplitwiseConnector
 from fastdeploy.utils import EngineError, envs, llm_logger
 
@@ -576,9 +578,19 @@ class EngineService:
         if api_server_pid is None:
             return
         self.api_server_pid = api_server_pid
-        self.zmq_server = ZmqClient(name=api_server_pid, mode=zmq.PULL)
+        if envs.FD_ENABLE_INTERNAL_ADAPTER:
-        self.zmq_server.start_server()
+            self.recv_request_server = ZmqTcpServer(port=envs.FD_ZMQ_RECV_REQUEST_SERVER_PORT, mode=zmq.PULL)
-        self.zmq_server.create_router()
+            self.send_response_server = ZmqTcpServer(port=envs.FD_ZMQ_SEND_RESPONSE_SERVER_PORT, mode=zmq.ROUTER)
+            self.internal_adapter = InternalAdapter(
+                cfg=self.cfg, engine=self, dp_rank=self.cfg.node_rank * self.cfg.worker_num_per_node
+            )
+        else:
+            self.recv_request_server = ZmqIpcServer(name=api_server_pid, mode=zmq.PULL)
+            self.send_response_server = ZmqIpcServer(name=api_server_pid, mode=zmq.ROUTER)
+        self.recv_result_handle_thread = threading.Thread(
+            target=self.send_response_server.recv_result_handle, daemon=True
+        )
+        self.recv_result_handle_thread.start()
         time.sleep(3)
         self.insert_task_to_scheduler_thread = threading.Thread(target=self._insert_zmq_task_to_scheduler, daemon=True)
         self.insert_task_to_scheduler_thread.start()
@@ -592,9 +604,9 @@ class EngineService:
             try:
                 block = True if len(added_requests) == 0 else False
                 if not self.cfg.model_config.enable_mm:
-                    err, data = self.zmq_server.receive_json_once(block)
+                    err, data = self.recv_request_server.receive_json_once(block)
                 else:
-                    err, data = self.zmq_server.receive_pyobj_once(block)
+                    err, data = self.recv_request_server.receive_pyobj_once(block)
                 if err is not None:
                     llm_logger.error(f"Engine stops inserting zmq task into scheduler, err:{err}")
                     break
@@ -648,7 +660,7 @@ class EngineService:
                     )
                     # Since the request is not in scheduler
                     # Send result by zmq directly
-                    self.zmq_server.send_multipart(request_id, [error_result])
+                    self.send_response_server.send_response(request_id, [error_result])
             except Exception as e:
                 llm_logger.error(
                     f"Error happened while receiving new request from zmq, details={e}, "
@@ -666,7 +678,7 @@ class EngineService:
                     time.sleep(0.005)
                     continue
                 for request_id, contents in results.items():
-                    self.zmq_server.send_multipart(request_id, contents)
+                    self.send_response_server.send_response(request_id, contents)
 
             except Exception as e:
                 llm_logger.error(f"Unexcepted error happened: {e}, {traceback.format_exc()!s}")
@@ -766,5 +778,9 @@ class EngineService:
         self.worker_healthy_live_signal.clear()
         self.exist_prefill_task_signal.clear()
         self.model_weights_status_signal.clear()
-        if hasattr(self, "zmq_server") and self.zmq_server is not None:
+        if hasattr(self, "send_response_server") and self.send_response_server is not None:
-            self.zmq_server.close()
+            self.send_response_server.close()
+        if hasattr(self, "recv_request_server") and self.recv_request_server is not None:
+            self.recv_request_server.close()
+        if hasattr(self, "recv_control_cmd_server") and self.recv_control_cmd_server is not None:
+            self.recv_control_cmd_server.close()

fastdeploy/entrypoints/engine_client.py

@@ -27,7 +27,7 @@ from fastdeploy.config import ModelConfig
 from fastdeploy.entrypoints.openai.utils import DealerConnectionManager
 from fastdeploy.envs import FD_SUPPORT_MAX_CONNECTIONS
 from fastdeploy.input.preprocess import InputPreprocessor
-from fastdeploy.inter_communicator import IPCSignal, ZmqClient
+from fastdeploy.inter_communicator import IPCSignal, ZmqIpcClient
 from fastdeploy.metrics.work_metrics import work_process_metrics
 from fastdeploy.multimodal.registry import MultimodalRegistry
 from fastdeploy.platforms import current_platform
@@ -115,7 +115,7 @@ class EngineClient:
         """
         Create a ZMQ client.
         """
-        self.zmq_client = ZmqClient(model, mode)
+        self.zmq_client = ZmqIpcClient(model, mode)
         self.zmq_client.connect()
 
     async def format_and_add_data(self, prompts: dict):

fastdeploy/envs.py

@@ -98,6 +98,15 @@ environment_variables: dict[str, Callable[[], Any]] = {
     # Whether to use new get_output and save_output method (0 or 1)
     "FD_USE_GET_SAVE_OUTPUT_V1": lambda: bool(int(os.getenv("FD_USE_GET_SAVE_OUTPUT_V1", "0"))),
     # Whether to enable model cache feature
+    "FD_ENABLE_MODEL_CACHE": lambda: bool(int(os.getenv("FD_ENABLE_MODEL_CACHE", "0"))),
+    # enable internal module to access LLMEngine.
+    "FD_ENABLE_INTERNAL_ADAPTER": lambda: int(os.getenv("FD_ENABLE_INTERNAL_ADAPTER", "0")),
+    # LLMEngine recieve requests port, used when FD_ENABLE_INTERNAL_ADAPTER=1
+    "FD_ZMQ_RECV_REQUEST_SERVER_PORT": lambda: os.getenv("FD_ZMQ_RECV_REQUEST_SERVER_PORT", "8200"),
+    # LLMEngine send response port, used when FD_ENABLE_INTERNAL_ADAPTER=1
+    "FD_ZMQ_SEND_RESPONSE_SERVER_PORT": lambda: os.getenv("FD_ZMQ_SEND_RESPONSE_SERVER_PORT", "8201"),
+    # LLMEngine recieve control command port, used when FD_ENABLE_INTERNAL_ADAPTER=1
+    "FD_ZMQ_CONTROL_CMD_SERVER_PORTS": lambda: os.getenv("FD_ZMQ_CONTROL_CMD_SERVER_PORTS", "8202"),
     "FD_ENABLE_MODEL_LOAD_CACHE": lambda: bool(int(os.getenv("FD_ENABLE_MODEL_LOAD_CACHE", "0"))),
 }
 

fastdeploy/inter_communicator/__init__.py

@@ -17,6 +17,15 @@
 from .engine_cache_queue import EngineCacheQueue
 from .engine_worker_queue import EngineWorkerQueue
 from .ipc_signal import IPCSignal, shared_memory_exists
-from .zmq_client import ZmqClient
+from .zmq_client import ZmqIpcClient
+from .zmq_server import ZmqIpcServer, ZmqTcpServer
 
-__all__ = ["ZmqClient", "IPCSignal", "EngineWorkerQueue", "EngineCacheQueue", "shared_memory_exists"]
+__all__ = [
+    "ZmqIpcClient",
+    "IPCSignal",
+    "EngineWorkerQueue",
+    "EngineCacheQueue",
+    "ZmqTcpServer",
+    "ZmqIpcServer",
+    "shared_memory_exists",
+]

fastdeploy/inter_communicator/zmq_client.py

@@ -14,209 +14,100 @@
 # limitations under the License.
 """
 
-import os
+from abc import ABC, abstractmethod
-import threading
-import time
-import traceback
 
-import msgpack
 import zmq
 
-from fastdeploy import envs
+from fastdeploy.utils import llm_logger
-from fastdeploy.utils import zmq_client_logger
 
 
-class ZmqClient:
+class ZmqClientBase(ABC):
     """
-    ZmqClient is a class that provides a client-side interface for sending and receiving messages using ZeroMQ.
+    ZmqClientBase is a base class that provides a client-side interface for sending and receiving messages using ZeroMQ.
     """
 
-    def __init__(self, name, mode):
+    def __init__(self):
-        self.context = zmq.Context(4)
+        pass
-        self.socket = self.context.socket(mode)
-        self.file_name = f"/dev/shm/{name}.socket"
-        self.router_path = f"/dev/shm/router_{name}.ipc"
 
-        self.ZMQ_SNDHWM = int(envs.FD_ZMQ_SNDHWM)
+    @abstractmethod
-        self.aggregate_send = envs.FD_USE_AGGREGATE_SEND
+    def _create_socket(self):
+        """Abstract method to create and return a ZeroMQ socket."""
+        pass
 
-        self.mutex = threading.Lock()
+    def _ensure_socket(self):
-        self.req_dict = dict()
+        """Ensure the socket is created before use."""
-        self.router = None
+        if self.socket is None:
-        self.poller = None
+            self.socket = self._create_socket()
-        self.running = True
 
+    @abstractmethod
     def connect(self):
         """
         Connect to the server using the file name specified in the constructor.
         """
-        self.socket.connect(f"ipc://{self.file_name}")
+        pass
-
-    def start_server(self):
-        """
-        Start the server using the file name specified in the constructor.
-        """
-        self.socket.setsockopt(zmq.SNDHWM, self.ZMQ_SNDHWM)
-        self.socket.setsockopt(zmq.SNDTIMEO, -1)
-        self.socket.bind(f"ipc://{self.file_name}")
-        self.poller = zmq.Poller()
-        self.poller.register(self.socket, zmq.POLLIN)
-
-    def create_router(self):
-        """
-        Create a ROUTER socket and bind it to the specified router path.
-        """
-        self.router = self.context.socket(zmq.ROUTER)
-        self.router.setsockopt(zmq.SNDHWM, self.ZMQ_SNDHWM)
-        self.router.setsockopt(zmq.ROUTER_MANDATORY, 1)
-        self.router.setsockopt(zmq.SNDTIMEO, -1)
-        self.router.bind(f"ipc://{self.router_path}")
-        zmq_client_logger.info(f"router path: {self.router_path}")
 
     def send_json(self, data):
         """
         Send a JSON-serializable object over the socket.
         """
+        self._ensure_socket()
         self.socket.send_json(data)
 
     def recv_json(self):
         """
         Receive a JSON-serializable object from the socket.
         """
+        self._ensure_socket()
         return self.socket.recv_json()
 
     def send_pyobj(self, data):
         """
         Send a Pickle-serializable object over the socket.
         """
+        self._ensure_socket()
         self.socket.send_pyobj(data)
 
     def recv_pyobj(self):
         """
         Receive a Pickle-serializable object from the socket.
         """
+        self._ensure_socket()
         return self.socket.recv_pyobj()
 
-    def pack_aggregated_data(self, data):
+    @abstractmethod
-        """
+    def close(self):
-        Aggregate multiple responses into one and send them to the client.
+        pass
-        """
-        result = data[0]
-        if len(data) > 1:
-            for response in data[1:]:
-                result.add(response)
-        result = msgpack.packb([result.to_dict()])
-        return result
 
-    def send_multipart(self, req_id, data):
-        """
-        Send a multipart message to the router socket.
-        """
-        if self.router is None:
-            raise RuntimeError("Router socket not created. Call create_router() first.")
 
-        while self.running:
+class ZmqIpcClient(ZmqClientBase):
-            with self.mutex:
+    def __init__(self, name, mode):
-                if req_id not in self.req_dict:
+        self.name = name
-                    try:
+        self.mode = mode
-                        client, _, request_id = self.router.recv_multipart(flags=zmq.NOBLOCK)
+        self.file_name = f"/dev/shm/{name}.socket"
-                        req_id_str = request_id.decode("utf-8")
+        self.context = zmq.Context()
-                        self.req_dict[req_id_str] = client
+        self.socket = self.context.socket(self.mode)
-                    except zmq.Again:
-                        time.sleep(0.001)
-                        continue
-                else:
-                    break
-        if self.req_dict[req_id] == -1:
-            if data[-1].finished:
-                with self.mutex:
-                    self.req_dict.pop(req_id, None)
-            return
-        try:
-            start_send = time.time()
-            if self.aggregate_send:
-                result = self.pack_aggregated_data(data)
-            else:
-                result = msgpack.packb([response.to_dict() for response in data])
-            self.router.send_multipart([self.req_dict[req_id], b"", result])
-            zmq_client_logger.info(f"send_multipart result: {req_id} len {len(data)} elapse: {time.time()-start_send}")
-        except zmq.ZMQError as e:
-            zmq_client_logger.error(f"[{req_id}] zmq error: {e}")
-            self.req_dict[req_id] = -1
-        except Exception as e:
-            zmq_client_logger.error(f"Send result to zmq client failed: {e}, {str(traceback.format_exc())}")
 
-        if data[-1].finished:
+    def _create_socket(self):
-            with self.mutex:
+        """create and return a ZeroMQ socket."""
-                self.req_dict.pop(req_id, None)
+        self.context = zmq.Context()
-            zmq_client_logger.info(f"send_multipart finished, req_id: {req_id}")
+        return self.context.socket(self.mode)
 
-    def receive_json_once(self, block=False):
+    def connect(self):
-        """
+        self._ensure_socket()
-        Receive a single message from the socket.
+        self.socket.connect(f"ipc://{self.file_name}")
-        """
-        if self.socket is None or self.socket.closed:
-            return "zmp socket has closed", None
-        try:
-            flags = zmq.NOBLOCK if not block else 0
-            return None, self.socket.recv_json(flags=flags)
-        except zmq.Again:
-            return None, None
-        except Exception as e:
-            self.close()
-            zmq_client_logger.warning(f"{e}, {str(traceback.format_exc())}")
-            return str(e), None
-
-    def receive_pyobj_once(self, block=False):
-        """
-        Receive a single message from the socket.
-        """
-        if self.socket is None or self.socket.closed:
-            return "zmp socket has closed", None
-        try:
-            flags = zmq.NOBLOCK if not block else 0
-            return None, self.socket.recv_pyobj(flags=flags)
-        except zmq.Again:
-            return None, None
-        except Exception as e:
-            self.close()
-            zmq_client_logger.warning(f"{e}, {str(traceback.format_exc())}")
-            return str(e), None
-
-    def _clear_ipc(self, name):
-        """
-        Remove the IPC file with the given name.
-        """
-        if os.path.exists(name):
-            try:
-                os.remove(name)
-            except OSError as e:
-                zmq_client_logger.warning(f"Failed to remove IPC file {name} - {e}")
 
     def close(self):
         """
-        Close the socket and context, and remove the IPC files.
+        Close the socket and context.
         """
-        if not self.running:
+        llm_logger.info("ZMQ client is closing connection...")
-            return
-
-        self.running = False
-        zmq_client_logger.info("Closing ZMQ connection...")
         try:
-            if hasattr(self, "socket") and not self.socket.closed:
+            if self.socket is not None and not self.socket.closed:
+                self.socket.setsockopt(zmq.LINGER, 0)
                 self.socket.close()
-
+            if self.context is not None:
-            if self.router is not None and not self.router.closed:
-                self.router.close()
-
-            if not self.context.closed:
                 self.context.term()
 
-            self._clear_ipc(self.file_name)
-            self._clear_ipc(self.router_path)
         except Exception as e:
-            zmq_client_logger.warning(f"Failed to close ZMQ connection - {e}, {str(traceback.format_exc())}")
+            llm_logger.warning(f"ZMQ client failed to close connection - {e}")
             return
-
-    def __exit__(self, exc_type, exc_val, exc_tb):
-        self.close()

fastdeploy/inter_communicator/zmq_server.py

@@ -0,0 +1,335 @@
+"""
+# Copyright (c) 2025  PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+
+import os
+import threading
+import time
+from abc import ABC, abstractmethod
+from collections import defaultdict
+
+import msgpack
+import zmq
+
+from fastdeploy import envs
+from fastdeploy.utils import llm_logger
+
+
+class ZmqServerBase(ABC):
+    """
+    ZmqServerBase
+    """
+
+    def __init__(self):
+        self.cached_results = defaultdict(list)
+        self.response_token_lock = threading.Lock()
+
+    @abstractmethod
+    def _create_socket(self):
+        """Abstract method to create and return a ZeroMQ socket."""
+        pass
+
+    def _ensure_socket(self):
+        """Ensure the socket is created before use."""
+        if self.socket is None:
+            self.socket = self._create_socket()
+
+    def send_json(self, data):
+        """
+        Send a JSON-serializable object over the socket.
+        """
+        self._ensure_socket()
+        self.socket.send_json(data)
+
+    def recv_json(self):
+        """
+        Receive a JSON-serializable object from the socket.
+        """
+        self._ensure_socket()
+        return self.socket.recv_json()
+
+    def send_pyobj(self, data):
+        """
+        Send a Pickle-serializable object over the socket.
+        """
+        self._ensure_socket()
+        self.socket.send_pyobj(data)
+
+    def recv_pyobj(self):
+        """
+        Receive a Pickle-serializable object from the socket.
+        """
+        self._ensure_socket()
+        return self.socket.recv_pyobj()
+
+    def pack_aggregated_data(self, data):
+        """
+        Aggregate multiple responses into one and send them to the client.
+        """
+        result = data[0]
+        if len(data) > 1:
+            for response in data[1:]:
+                result.add(response)
+        result = msgpack.packb([result.to_dict()])
+        return result
+
+    def receive_json_once(self, block=False):
+        """
+        Receive a single message from the socket.
+        """
+        self._ensure_socket()
+        if self.socket is None or self.socket.closed:
+            return "zmp socket has closed", None
+        try:
+            flags = zmq.NOBLOCK if not block else 0
+            return None, self.socket.recv_json(flags=flags)
+        except zmq.Again:
+            return None, None
+        except Exception as e:
+            self.close()
+            llm_logger.warning(f"{e}")
+            return str(e), None
+
+    def receive_pyobj_once(self, block=False):
+        """
+        Receive a single message from the socket.
+        """
+        self._ensure_socket()
+        if self.socket is None or self.socket.closed:
+            return "zmp socket has closed", None
+        try:
+            flags = zmq.NOBLOCK if not block else 0
+            return None, self.socket.recv_pyobj(flags=flags)
+        except zmq.Again:
+            return None, None
+        except Exception as e:
+            self.close()
+            llm_logger.warning(f"{e}")
+            return str(e), None
+
+    def recv_result_handle(self):
+        while True:
+            try:
+                with self.response_token_lock:
+                    client, _, request_id = self.socket.recv_multipart(flags=zmq.NOBLOCK)
+                req_id_str = request_id.decode("utf-8")
+                need_send_after_finished_inference = False
+                with self.mutex:
+                    self.req_dict[req_id_str] = client
+                    if req_id_str in self.cached_results:
+                        if self.cached_results[req_id_str][-1][-1].finished:
+                            need_send_after_finished_inference = True
+                if need_send_after_finished_inference:
+                    self.send_response(req_id_str, [])
+                    llm_logger.info(f"send_multipart finished, req_id: {req_id_str}")
+                    self.req_dict.pop(req_id_str, None)
+
+            except zmq.Again:
+                time.sleep(0.001)
+                continue
+            except Exception as e:
+                llm_logger.error(f"recv_result_handle get unknown exception: {e}")
+                continue
+
+    def send_response(self, req_id, data):
+        """
+        Send generated token result to client.
+        """
+        self._ensure_socket()
+        if self.socket is None:
+            raise RuntimeError("Router socket not created. Call create_router() first.")
+        new_data = []
+        has_result_handle = False
+        with self.mutex:
+            if req_id not in self.req_dict:
+                self.cached_results[req_id].append(data)
+            else:
+                has_result_handle = True
+                if req_id in self.cached_results:
+                    for history_data in self.cached_results[req_id]:
+                        new_data.extend(history_data)
+                    llm_logger.info(
+                        f"get request {req_id} result handle after cached result, total cached length {len(self.cached_results[req_id])}"
+                    )
+                    del self.cached_results[req_id]
+        if has_result_handle:
+            try:
+                new_data.extend(data)
+                start_send = time.time()
+                if self.aggregate_send:
+                    result = self.pack_aggregated_data(new_data)
+                else:
+                    result = msgpack.packb([response.to_dict() for response in new_data])
+                with self.response_token_lock:
+                    self.socket.send_multipart([self.req_dict[req_id], b"", result])
+                llm_logger.debug(
+                    f"send_multipart result: {req_id} len {len(new_data)} elapse: {time.time()-start_send}"
+                )
+
+            except Exception as e:
+                llm_logger.error(f"Send result to zmq client failed: {e}")
+
+        if data and data[-1].finished:
+            with self.mutex:
+                if req_id in self.req_dict:
+                    llm_logger.info(f"send_multipart finished, req_id: {req_id}")
+                    self.req_dict.pop(req_id, None)
+
+    @abstractmethod
+    def close(self):
+        pass
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.close()
+
+
+class ZmqIpcServer(ZmqServerBase):
+    """
+    ZmqIpcServer, used when FD_ENABLE_INTERNAL_ADAPTER=0
+    """
+
+    def __init__(self, name, mode):
+        self.name = name
+        self.mode = mode
+        self.cached_results = defaultdict(list)
+        if mode == zmq.PULL:
+            self.file_name = f"/dev/shm/{name}.socket"
+        elif mode == zmq.ROUTER:
+            self.file_name = f"/dev/shm/router_{name}.ipc"
+        self.ZMQ_SNDHWM = int(envs.FD_ZMQ_SNDHWM)
+        self.aggregate_send = envs.FD_USE_AGGREGATE_SEND
+        self.mutex = threading.Lock()
+        self.response_token_lock = threading.Lock()
+        self.req_dict = dict()
+        self.running = True
+        self.context = zmq.Context()
+        self._create_socket()
+
+    def _create_socket(self):
+        """create and return a ZeroMQ socket."""
+        self.socket = self.context.socket(self.mode)
+        self.socket.setsockopt(zmq.SNDHWM, self.ZMQ_SNDHWM)
+        self.socket.setsockopt(zmq.SNDTIMEO, -1)
+        self.socket.bind(f"ipc://{self.file_name}")
+        return self.socket
+
+    def _clear_ipc(self, name):
+        """
+        Remove the IPC file with the given name.
+        """
+        if os.path.exists(name):
+            try:
+                os.remove(name)
+            except OSError as e:
+                llm_logger.warning(f"Failed to remove IPC file {name} - {e}")
+
+    def close(self):
+        """
+        Close the socket and context, and remove the IPC files.
+        """
+        if not self.running:
+            return
+
+        self.running = False
+        llm_logger.info("ZMQ server is closing connection...")
+        try:
+            if self.socket is not None and not self.socket.closed:
+                self.socket.close()
+            if not self.context.closed:
+                self.context.term()
+            self._clear_ipc(self.file_name)
+        except Exception as e:
+            llm_logger.warning(f"ZMQ server failed to close connection - {e}")
+            return
+
+
+class ZmqTcpServer(ZmqServerBase):
+    """
+    ZmqTcpServer, used when FD_ENABLE_INTERNAL_ADAPTER=1
+    """
+
+    def __init__(self, port, mode):
+        self.mode = mode
+        self.port = port
+        self.cached_results = defaultdict(list)
+        self.ZMQ_SNDHWM = int(envs.FD_ZMQ_SNDHWM)
+        self.aggregate_send = envs.FD_USE_AGGREGATE_SEND
+
+        self.mutex = threading.Lock()
+        self.req_dict = dict()
+        self.running = True
+        self.context = zmq.Context()
+        self._create_socket()
+        self.response_token_lock = threading.Lock()
+
+    def _create_socket(self):
+        """create and return a ZeroMQ socket."""
+        self.socket = self.context.socket(self.mode)
+        self.socket.setsockopt(zmq.SNDHWM, self.ZMQ_SNDHWM)
+        self.socket.setsockopt(zmq.SNDTIMEO, -1)
+        self.socket.bind(f"tcp://*:{self.port}")
+        return self.socket
+
+    def recv_control_cmd(self):
+        """
+        Recieve control command from client
+        """
+        self._ensure_socket()
+        try:
+            client, _, task_data = self.socket.recv_multipart(flags=zmq.NOBLOCK)
+            task = msgpack.unpackb(task_data)
+            task_id_str = task["task_id"]
+        except zmq.Again:
+            return None
+        with self.mutex:
+            self.req_dict[task_id_str] = client
+        return task
+
+    def response_for_control_cmd(self, task_id, result):
+        """
+        Send command result back to client.
+        """
+        self._ensure_socket()
+        if self.socket is None:
+            raise RuntimeError("Router socket not created.")
+        try:
+            result = msgpack.packb(result)
+            self.socket.send_multipart([self.req_dict[task_id], b"", result])
+
+        except Exception as e:
+            llm_logger.error(f"Send result to zmq client failed: {e}")
+
+        with self.mutex:
+            self.req_dict.pop(task_id, None)
+        llm_logger.debug(f"response control cmd finished, task_id: {task_id}")
+
+    def close(self):
+        """
+        Close the socket and context.
+        """
+        if not self.running:
+            return
+
+        self.running = False
+        llm_logger.info("ZMQ server is closing connection...")
+        try:
+            if self.socket is not None and not self.socket.closed:
+                self.socket.close()
+            if not self.context.closed:
+                self.context.term()
+
+        except Exception as e:
+            llm_logger.warning(f"ZMQ server failed to close connection - {e}")
+            return

fastdeploy/model_executor/pre_and_post_process.py

@@ -78,7 +78,8 @@ else:
         update_inputs_v1,
     )
 
-from fastdeploy.inter_communicator import ZmqClient
+
+from fastdeploy.inter_communicator import ZmqIpcClient
 from fastdeploy.output.stream_transfer_data import DecoderState, StreamTransferData
 from fastdeploy.worker.output import ModelOutputData, ModelRunnerOutput, SamplerOutput
 
@@ -160,7 +161,7 @@ def pre_process(
     )
 
 
-def _zmq_send_text_outputs(zmq_client: ZmqClient, output_tokens: np.ndarray, save_each_rank: bool, mp_rank: int):
+def _zmq_send_text_outputs(zmq_client: ZmqIpcClient, output_tokens: np.ndarray, save_each_rank: bool, mp_rank: int):
     """Split output_tokens and output"""
     assert zmq_client is not None, "zmq_client should not be None"
     output_tokens = output_tokens.reshape([-1]).numpy()
@@ -187,7 +188,7 @@ def post_process_normal(
     block_size: int = 64,
     save_each_rank: bool = False,
     skip_save_output: bool = False,
-    zmq_client: ZmqClient = None,
+    zmq_client: ZmqIpcClient = None,
 ) -> ModelRunnerOutput:
     """Post-processing steps after completing a single token generation."""
     # handle vl:
@@ -389,7 +390,7 @@ def post_process(
     save_each_rank: bool = False,
     speculative_decoding: bool = False,
     skip_save_output: bool = False,
-    zmq_client: ZmqClient = None,
+    zmq_client: ZmqIpcClient = None,
 ) -> None:
     """Post-processing steps after completing a single token generation."""
     if speculative_decoding:

fastdeploy/output/token_processor.py

@@ -29,7 +29,7 @@ import zmq
 
 from fastdeploy import envs
 from fastdeploy.engine.request import CompletionOutput, RequestMetrics, RequestOutput
-from fastdeploy.inter_communicator import IPCSignal, ZmqClient
+from fastdeploy.inter_communicator import IPCSignal, ZmqIpcServer
 from fastdeploy.metrics.metrics import main_process_metrics
 from fastdeploy.platforms import current_platform
 from fastdeploy.utils import llm_logger, spec_logger
@@ -58,12 +58,11 @@ class TokenProcessor:
         self.split_connector = split_connector
 
         if envs.FD_USE_GET_SAVE_OUTPUT_V1:
+
             llm_logger.debug(f"create zmq get_save_output_rank{self.cfg.parallel_config.local_data_parallel_id}")
-            self.zmq_server = ZmqClient(
+            self.zmq_server = ZmqIpcServer(
                 name=f"get_save_output_rank{self.cfg.parallel_config.local_data_parallel_id}", mode=zmq.PULL
             )
-            self.zmq_server.start_server()
-            self.zmq_server.create_router()
 
         self.speculative_decoding = self.cfg.speculative_config.method is not None
         self.use_logprobs = self.cfg.model_config.enable_logprob
@@ -498,6 +497,7 @@ class TokenProcessor:
                 metrics = RequestMetrics(
                     arrival_time=task.arrival_time,
                     inference_start_time=task.inference_start_time,
+                    model_execute_time=time.time() - task.inference_start_time,
                     first_token_time=time.time() - task.inference_start_time,
                     time_in_queue=task.schedule_start_time - task.preprocess_end_time,
                     preprocess_cost_time=task.preprocess_end_time - task.preprocess_start_time,
@@ -510,6 +510,7 @@ class TokenProcessor:
                 metrics = RequestMetrics(
                     arrival_time=time.time(),
                     request_start_time=task.arrival_time,
+                    model_execute_time=time.time() - task.inference_start_time,
                 )
             self.number_of_output_tokens += len(token_ids)
             self._record_metrics(task, current_time, token_ids)

fastdeploy/scheduler/local_scheduler.py

@@ -208,6 +208,9 @@ class LocalScheduler:
         """
         return (token_num + block_size - 1) // block_size
 
+    def get_unhandled_request_num(self):
+        return len(self.ids) - self.ids_read_cursor
+
     def get_requests(
         self,
         available_blocks,

fastdeploy/splitwise/internal_adapter_utils.py

@@ -0,0 +1,118 @@
+"""
+# Copyright (c) 2025  PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+
+import threading
+import time
+import traceback
+
+# **Note**: Just for internal use
+import zmq
+
+from fastdeploy.inter_communicator import ZmqTcpServer
+from fastdeploy.metrics.metrics import get_filtered_metrics, main_process_metrics
+from fastdeploy.utils import envs, get_logger
+
+logger = get_logger("internal_adapter_utils", "internal_adapter_utils.log")
+
+
+class InternalAdapter:
+    def __init__(self, cfg, engine, dp_rank):
+        self.cfg = cfg
+        self.engine = engine
+        self.dp_rank = dp_rank
+        recv_control_cmd_ports = envs.FD_ZMQ_CONTROL_CMD_SERVER_PORTS.split(",")
+        self.response_lock = threading.Lock()  # prevent to call send_multipart in zmq concurrently
+        self.recv_control_cmd_server = ZmqTcpServer(port=recv_control_cmd_ports[dp_rank], mode=zmq.ROUTER)
+        self.recv_external_instruct_thread = threading.Thread(
+            target=self._recv_external_module_control_instruct, daemon=True
+        )
+        self.recv_external_instruct_thread.start()
+        if cfg.splitwise_role != "mixed":
+            self.response_external_instruct_thread = threading.Thread(
+                target=self._response_external_module_control_instruct, daemon=True
+            )
+            self.response_external_instruct_thread.start()
+
+    def _get_current_server_info(self):
+        """
+        Get resources information
+        """
+        available_batch_size = min(self.cfg.max_prefill_batch, self.engine.resource_manager.available_batch())
+
+        available_block_num = self.engine.resource_manager.available_block_num()
+        server_info = {
+            "splitwise_role": self.cfg.splitwise_role,
+            "block_size": int(self.cfg.cache_config.block_size),
+            "block_num": int(available_block_num),
+            "max_block_num": int(self.cfg.cache_config.total_block_num),
+            "dec_token_num": int(self.cfg.cache_config.dec_token_num),
+            "available_resource": float(1.0 * available_block_num / self.cfg.cache_config.total_block_num),
+            "max_batch_size": int(available_batch_size),
+            "max_input_token_num": self.cfg.max_model_len,
+            "unhandled_request_num": self.engine.scheduler.get_unhandled_request_num(),
+            "available_batch": int(self.engine.resource_manager.available_batch()),
+        }
+        return server_info
+
+    def _recv_external_module_control_instruct(self):
+        """
+        Receive a multipart message from the control cmd socket.
+        """
+        while True:
+            try:
+                with self.response_lock:
+                    task = self.recv_control_cmd_server.recv_control_cmd()
+                if task is None:
+                    time.sleep(0.001)
+                    continue
+                logger.info(f"Recieve control task: {task}")
+                task_id_str = task["task_id"]
+                if task["cmd"] == "get_payload":
+                    payload_info = self._get_current_server_info()
+                    result = {"task_id": task_id_str, "result": payload_info}
+                    logger.debug(f"Response for task: {task_id_str}")
+                    with self.response_lock:
+                        self.recv_control_cmd_server.response_for_control_cmd(task_id_str, result)
+
+                elif task["cmd"] == "get_metrics":
+                    metrics_text = get_filtered_metrics(
+                        [],
+                        extra_register_func=lambda reg: main_process_metrics.register_all(reg, workers=1),
+                    )
+                    result = {"task_id": task_id_str, "result": metrics_text}
+                    logger.debug(f"Response for task: {task_id_str}")
+                    with self.response_lock:
+                        self.recv_control_cmd_server.response_for_control_cmd(task_id_str, result)
+                elif task["cmd"] == "connect_rdma":
+                    self.engine.engine_worker_queue.put_connect_rdma_task(task)
+
+            except Exception as e:
+                logger.error(f"handle_control_cmd got error: {e}, {traceback.format_exc()!s}")
+
+    def _response_external_module_control_instruct(self):
+        while True:
+            try:
+                result_data = self.engine.engine_worker_queue.get_connect_rdma_task_response()
+                if result_data:
+                    task_id_str = result_data["task_id"]
+                    result = {"task_id": task_id_str, "result": result_data}
+                    logger.info(f"Response for task: {task_id_str}")
+                    with self.response_lock:
+                        self.recv_control_cmd_server.response_for_control_cmd(task_id_str, result)
+                else:
+                    time.sleep(0.001)
+            except Exception as e:
+                logger.error(f"_handle_connect_rdma_results got error: {e}, {traceback.format_exc() !s}")

fastdeploy/worker/gpu_model_runner.py

@@ -75,7 +75,7 @@ import zmq
 
 from fastdeploy import envs
 from fastdeploy.input.ernie4_5_vl_processor import DataProcessor
-from fastdeploy.inter_communicator import ZmqClient
+from fastdeploy.inter_communicator import ZmqIpcClient
 from fastdeploy.model_executor.forward_meta import ForwardMeta
 from fastdeploy.model_executor.models.ernie4_5_vl.modeling_resampler import ScatterOp
 from fastdeploy.worker.model_runner_base import ModelRunnerBase
@@ -171,7 +171,7 @@ class GPUModelRunner(ModelRunnerBase):
         self.zmq_client = None
         if envs.FD_USE_GET_SAVE_OUTPUT_V1:
             logger.info(f"zmq client get_save_output_rank{local_rank}")
-            self.zmq_client = ZmqClient(name=f"get_save_output_rank{local_rank}", mode=zmq.PUSH)
+            self.zmq_client = ZmqIpcClient(name=f"get_save_output_rank{local_rank}", mode=zmq.PUSH)
             self.zmq_client.connect()
             self.zmq_client.socket.SNDTIMEO = 3000
 

tests/ci_use/EB_Lite_with_adapter/test_eblite_serving.py

@@ -0,0 +1,251 @@
+# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import queue
+import shutil
+import signal
+import socket
+import subprocess
+import sys
+import time
+
+import pytest
+
+current_dir = os.path.dirname(os.path.abspath(__file__))
+project_root = os.path.abspath(os.path.join(current_dir, "..", ".."))
+print("project_root", project_root)
+if project_root not in sys.path:
+    sys.path.insert(0, project_root)
+
+from ci_use.EB_Lite_with_adapter.zmq_client import LLMControlClient, LLMReqClient
+
+env = os.environ.copy()
+
+# Read ports from environment variables; use default values if not set
+FD_API_PORT = int(os.getenv("FD_API_PORT", 8188))
+FD_ENGINE_QUEUE_PORT = int(os.getenv("FD_ENGINE_QUEUE_PORT", 8133))
+FD_METRICS_PORT = int(os.getenv("FD_METRICS_PORT", 8233))
+FD_CACHE_QUEUE_PORT = int(os.getenv("FD_CACHE_QUEUE_PORT", 8234))
+
+FD_ENABLE_INTERNAL_ADAPTER = int(os.getenv("FD_ENABLE_INTERNAL_ADAPTER", "1"))
+FD_ZMQ_RECV_REQUEST_SERVER_PORT = int(os.getenv("FD_ZMQ_RECV_REQUEST_SERVER_PORT", "8204"))
+FD_ZMQ_SEND_RESPONSE_SERVER_PORT = int(os.getenv("FD_ZMQ_SEND_RESPONSE_SERVER_PORT", "8205"))
+FD_ZMQ_CONTROL_CMD_SERVER_PORTS = int(os.getenv("FD_ZMQ_CONTROL_CMD_SERVER_PORTS", "8206"))
+FD_ZMQ_CONTROL_CMD_SERVER_PORT = FD_ZMQ_CONTROL_CMD_SERVER_PORTS
+
+env["FD_ENABLE_INTERNAL_ADAPTER"] = str(FD_ENABLE_INTERNAL_ADAPTER)
+env["FD_ZMQ_RECV_REQUEST_SERVER_PORT"] = str(FD_ZMQ_RECV_REQUEST_SERVER_PORT)
+env["FD_ZMQ_SEND_RESPONSE_SERVER_PORT"] = str(FD_ZMQ_SEND_RESPONSE_SERVER_PORT)
+env["FD_ZMQ_CONTROL_CMD_SERVER_PORTS"] = str(FD_ZMQ_CONTROL_CMD_SERVER_PORTS)
+env["FD_ZMQ_CONTROL_CMD_SERVER_PORT"] = str(FD_ZMQ_CONTROL_CMD_SERVER_PORT)
+
+# List of ports to clean before and after tests
+PORTS_TO_CLEAN = [
+    FD_API_PORT,
+    FD_ENGINE_QUEUE_PORT,
+    FD_METRICS_PORT,
+    FD_CACHE_QUEUE_PORT,
+    FD_ZMQ_RECV_REQUEST_SERVER_PORT,
+    FD_ZMQ_SEND_RESPONSE_SERVER_PORT,
+    FD_ZMQ_CONTROL_CMD_SERVER_PORT,
+]
+
+
+@pytest.fixture
+def zmq_req_client():
+    client = LLMReqClient("0.0.0.0", FD_ZMQ_RECV_REQUEST_SERVER_PORT, FD_ZMQ_SEND_RESPONSE_SERVER_PORT)
+    return client
+
+
+@pytest.fixture
+def zmq_control_client():
+    client = LLMControlClient("0.0.0.0", FD_ZMQ_CONTROL_CMD_SERVER_PORT)
+    return client
+
+
+def is_port_open(host: str, port: int, timeout=1.0):
+    """
+    Check if a TCP port is open on the given host.
+    Returns True if connection succeeds, False otherwise.
+    """
+    try:
+        with socket.create_connection((host, port), timeout):
+            return True
+    except Exception:
+        return False
+
+
+def kill_process_on_port(port: int):
+    """
+    Kill processes that are listening on the given port.
+    Uses `lsof` to find process ids and sends SIGKILL.
+    """
+    try:
+        output = subprocess.check_output(f"lsof -i:{port} -t", shell=True).decode().strip()
+        for pid in output.splitlines():
+            os.kill(int(pid), signal.SIGKILL)
+            print(f"Killed process on port {port}, pid={pid}")
+    except subprocess.CalledProcessError:
+        pass
+
+    try:
+        result = subprocess.run(
+            f"ps -ef -ww| grep {FD_CACHE_QUEUE_PORT} | grep -v grep", shell=True, capture_output=True, text=True
+        )
+        for line in result.stdout.strip().split("\n"):
+            if not line:
+                continue
+            parts = line.split()
+            pid = int(parts[1])  # ps -ef 的第二列是 PID
+            print(f"Killing PID: {pid}")
+            os.kill(pid, signal.SIGKILL)
+    except Exception as e:
+        print(f"Failed to kill cache manager process: {e}")
+
+
+def clean_ports():
+    """
+    Kill all processes occupying the ports listed in PORTS_TO_CLEAN.
+    """
+    for port in PORTS_TO_CLEAN:
+        kill_process_on_port(port)
+    time.sleep(2)
+
+
+@pytest.fixture(scope="session", autouse=True)
+def setup_and_run_server():
+    """
+    Pytest fixture that runs once per test session:
+    - Cleans ports before tests
+    - Starts the API server as a subprocess
+    - Waits for server port to open (up to 30 seconds)
+    - Tears down server after all tests finish
+    """
+    print("Pre-test port cleanup...")
+    clean_ports()
+
+    base_path = os.getenv("MODEL_PATH")
+    if base_path:
+        model_path = os.path.join(base_path, "ernie-4_5-21b-a3b-bf16-paddle")
+    else:
+        model_path = "./ernie-4_5-21b-a3b-bf16-paddle"
+
+    log_path = "server.log"
+    cmd = [
+        sys.executable,
+        "-m",
+        "fastdeploy.entrypoints.openai.api_server",
+        "--model",
+        model_path,
+        "--port",
+        str(FD_API_PORT),
+        "--tensor-parallel-size",
+        "1",
+        "--engine-worker-queue-port",
+        str(FD_ENGINE_QUEUE_PORT),
+        "--metrics-port",
+        str(FD_METRICS_PORT),
+        "--cache-queue-port",
+        str(FD_CACHE_QUEUE_PORT),
+        "--max-model-len",
+        "32768",
+        "--max-num-seqs",
+        "128",
+        "--quantization",
+        "wint4",
+    ]
+
+    # Start subprocess in new process group
+    # 清除log目录
+    if os.path.exists("log"):
+        shutil.rmtree("log")
+    with open(log_path, "w") as logfile:
+        process = subprocess.Popen(
+            cmd,
+            env=env,
+            stdout=logfile,
+            stderr=subprocess.STDOUT,
+            start_new_session=True,  # Enables killing full group via os.killpg
+        )
+
+    # Wait up to 300 seconds for API server to be ready
+    for _ in range(300):
+        if is_port_open("127.0.0.1", FD_API_PORT):
+            print(f"API server is up on port {FD_API_PORT}")
+            break
+        time.sleep(1)
+    else:
+        print("[TIMEOUT] API server failed to start in 5 minutes. Cleaning up...")
+        try:
+            os.killpg(process.pid, signal.SIGTERM)
+        except Exception as e:
+            print(f"Failed to kill process group: {e}")
+        raise RuntimeError(f"API server did not start on port {FD_API_PORT}")
+
+    yield  # Run tests
+
+    print("\n===== Post-test server cleanup... =====")
+    try:
+        os.killpg(process.pid, signal.SIGTERM)
+        clean_ports()
+        print(f"API server (pid={process.pid}) terminated")
+    except Exception as e:
+        print(f"Failed to terminate API server: {e}")
+
+
+def test_request_and_response(zmq_req_client):
+    prompt_token_ids = [5300, 93956, 55791]
+    req_id = "test"
+    request = {
+        "req_id": req_id,
+        "request_id": req_id,
+        "min_tokens": 1,
+        "dp_rank": 0,  # P实例 DP rank, 从当前环境变量里读取
+        "prompt_token_ids": prompt_token_ids,
+        "prompt_token_ids_len": len(prompt_token_ids),
+        "eos_token_ids": [2],
+        "stop_token_ids": [2],
+        "max_dec_len": 32 * 1024,
+        "max_tokens": 32 * 1024,
+        "min_dec_len": 1,
+        "arrival_time": time.time(),
+        "preprocess_start_time": time.time(),
+        "preprocess_end_time": time.time(),
+        "messages": [],
+        "temperature": 0.8,
+        "penalty_score": 1.0,
+        "repetition_penalty": 1.0,
+        "presence_penalty": 0,
+        "top_p": 0.8,
+        "frequency_penalty": 0.0,
+    }
+    result_queue = queue.Queue()
+    zmq_req_client.start(result_queue)
+    zmq_req_client.send_request(request)
+    zmq_req_client.request_result(req_id)
+    has_is_end_result = False
+    while True:
+        result = result_queue.get()
+        if result[-1]["finished"]:
+            has_is_end_result = True
+            break
+    assert has_is_end_result is True
+
+
+def test_control_cmd(zmq_control_client):
+    result = zmq_control_client.get_payload()
+    assert "unhandled_request_num" in result
+    result = zmq_control_client.get_metrics()
+    assert result is not None

tests/ci_use/EB_Lite_with_adapter/zmq_client.py

@@ -0,0 +1,121 @@
+import threading
+import time
+import uuid
+from threading import Event
+
+import msgpack
+import zmq
+
+
+class LLMReqClient:
+    """
+    LLM request client
+    """
+
+    def __init__(self, ip, send_req_server_port, recv_res_server_port):
+        self.ZMQ_SNDHWM = 64 * 1024
+        self.context = zmq.Context()
+        self.send_req_client = self.context.socket(zmq.PUSH)
+        self.recv_res_client = self.context.socket(zmq.DEALER)
+        self.send_req_client.setsockopt(zmq.SNDHWM, self.ZMQ_SNDHWM)
+        self.send_req_client.setsockopt(zmq.SNDTIMEO, -1)
+        self.recv_res_client.setsockopt(zmq.SNDHWM, self.ZMQ_SNDHWM)
+        self.recv_res_client.setsockopt(zmq.SNDTIMEO, -1)
+        self.send_req_client.connect(f"tcp://{ip}:{send_req_server_port}")
+        self.recv_res_client.connect(f"tcp://{ip}:{recv_res_server_port}")
+        self.need_exit = False
+        self.response_socket_lock = threading.Lock()
+
+    def send_request(self, req_data):
+        self.send_req_client.send_json(req_data)
+
+    def request_result(self, req_id):
+        with self.response_socket_lock:
+            print(f"request result data for {req_id}")
+            self.recv_res_client.send_multipart([b"", req_id.encode("utf-8")])
+
+    def consume_results(self, result_queue):
+        while True:
+            try:
+                try:
+                    with self.response_socket_lock:
+                        frames = self.recv_res_client.recv_multipart(flags=zmq.NOBLOCK)
+                except zmq.Again:
+                    time.sleep(0.001)
+                    continue
+                data = frames[-1]
+                response = msgpack.unpackb(data)
+                print(f"get result data {response}")
+                result_queue.put(response)
+                if self.need_exit:
+                    break
+            except Exception as e:
+                print(f"zmq client occured error {e} type: {type(e)} frames: {frames}")
+
+    def start(self, result_queue):
+        threading.Thread(target=self.consume_results, args=(result_queue,), daemon=True).start()
+
+    def exit(self):
+        print("exit")
+        self.need_exit = True
+
+
+class LLMControlClient:
+    """
+    LLM control client
+    """
+
+    def __init__(self, ip, port):
+        self.ZMQ_SNDHWM = 64 * 1024
+        self.context = zmq.Context()
+        self.control_client = self.context.socket(zmq.DEALER)
+        self.control_client.setsockopt(zmq.SNDHWM, self.ZMQ_SNDHWM)
+        self.control_client.setsockopt(zmq.SNDTIMEO, -1)
+        self.control_client.connect(f"tcp://{ip}:{port}")
+        self.task_event = {}
+        self.result = {}
+        self.response_socket_lock = threading.Lock()
+        threading.Thread(target=self.recv_results, daemon=True).start()
+
+    def get_payload(self):
+        task_id = f"get_payload_{uuid.uuid4()}"
+        task = {"task_id": task_id, "cmd": "get_payload"}
+        self.task_event[task_id] = Event()
+        payload = msgpack.packb(task)
+        with self.response_socket_lock:
+            self.control_client.send_multipart([b"", payload])
+        self.task_event[task_id].wait()
+        result = self.result[task_id]
+        del self.result[task_id]
+        del self.task_event[task_id]
+        return result
+
+    def get_metrics(self):
+        task_id = f"get_metrics_{uuid.uuid4()}"
+        task = {"task_id": task_id, "cmd": "get_metrics"}
+        self.task_event[task_id] = Event()
+        payload = msgpack.packb(task)
+        with self.response_socket_lock:
+            self.control_client.send_multipart([b"", payload])
+        self.task_event[task_id].wait()
+        result = self.result[task_id]
+        del self.result[task_id]
+        del self.task_event[task_id]
+        return result
+
+    def recv_results(self):
+        while True:
+            try:
+                try:
+                    with self.response_socket_lock:
+                        frames = self.control_client.recv_multipart(flags=zmq.NOBLOCK)
+                except zmq.Again:
+                    time.sleep(0.001)
+                    continue
+                data = frames[-1]
+                result = msgpack.unpackb(data)
+                task_id = result["task_id"]
+                self.result[task_id] = result["result"]
+                self.task_event[task_id].set()
+            except Exception as e:
+                print(f"zmq client occured error {e} type: {type(e)} frames: {frames}")