enhancement:support Qdrant gRPC mode (#3929)

api/.env.example

 QDRANT_URL=http://localhost:6333
 QDRANT_API_KEY=difyai123456
 QDRANT_CLIENT_TIMEOUT=20
+QDRANT_GRPC_ENABLED=false
+QDRANT_GRPC_PORT=6334
 
 # Milvus configuration
 MILVUS_HOST=127.0.0.1
 API_TOOL_DEFAULT_READ_TIMEOUT=60
 
 # Log file path
-LOG_FILE=
+LOG_FILE=

api/config.py

     'WEAVIATE_GRPC_ENABLED': 'True',
     'WEAVIATE_BATCH_SIZE': 100,
     'QDRANT_CLIENT_TIMEOUT': 20,
+    'QDRANT_GRPC_ENABLED': 'False',
     'CELERY_BACKEND': 'database',
     'LOG_LEVEL': 'INFO',
     'LOG_FILE': '',
         self.QDRANT_URL = get_env('QDRANT_URL')
         self.QDRANT_API_KEY = get_env('QDRANT_API_KEY')
         self.QDRANT_CLIENT_TIMEOUT = get_env('QDRANT_CLIENT_TIMEOUT')
+        self.QDRANT_GRPC_ENABLED = get_env('QDRANT_GRPC_ENABLED')
+        self.QDRANT_GRPC_PORT = get_env('QDRANT_GRPC_PORT')
 
         # milvus / zilliz setting
         self.MILVUS_HOST = get_env('MILVUS_HOST')

api/core/rag/datasource/vdb/qdrant/qdrant_vector.py

     api_key: Optional[str]
     timeout: float = 20
     root_path: Optional[str]
+    grpc_port: int = 6334
+    prefer_grpc: bool = False
 
     def to_qdrant_params(self):
         if self.endpoint and self.endpoint.startswith('path:'):
                 'url': self.endpoint,
                 'api_key': self.api_key,
                 'timeout': self.timeout,
-                'verify': self.endpoint.startswith('https')
+                'verify': self.endpoint.startswith('https'),
+                'grpc_port': self.grpc_port,
+                'prefer_grpc': self.prefer_grpc
             }
 
 

api/core/rag/datasource/vdb/vector_factory.py

                     endpoint=config.get('QDRANT_URL'),
                     api_key=config.get('QDRANT_API_KEY'),
                     root_path=current_app.root_path,
-                    timeout=config.get('QDRANT_CLIENT_TIMEOUT')
+                    timeout=config.get('QDRANT_CLIENT_TIMEOUT'),
+                    grpc_port=config.get('QDRANT_GRPC_PORT'),
+                    prefer_grpc=config.get('QDRANT_GRPC_ENABLED')
                 )
             )
         elif vector_type == "milvus":

docker/docker-compose.middleware.yaml

   #     QDRANT_API_KEY: 'difyai123456'
   #   ports:
   #     - "6333:6333"
+  #     - "6334:6334"

docker/docker-compose.qdrant.yaml

       QDRANT_API_KEY: 'difyai123456'
     ports:
       - "6333:6333"
+      - "6334:6334"

docker/docker-compose.yaml

       QDRANT_URL: http://qdrant:6333
       # The Qdrant API key.
       QDRANT_API_KEY: difyai123456
-      # The Qdrant clinet timeout setting.
+      # The Qdrant client timeout setting.
       QDRANT_CLIENT_TIMEOUT: 20
+      # The Qdrant client enable gRPC mode.
+      QDRANT_GRPC_ENABLED: 'false'
+      # The Qdrant server gRPC mode PORT.
+      QDRANT_GRPC_PORT: 6334
       # Milvus configuration Only available when VECTOR_STORE is `milvus`.
       # The milvus host.
       MILVUS_HOST: 127.0.0.1
       QDRANT_API_KEY: difyai123456
       # The Qdrant clinet timeout setting.
       QDRANT_CLIENT_TIMEOUT: 20
+      # The Qdrant client enable gRPC mode.
+      QDRANT_GRPC_ENABLED: 'false'
+      # The Qdrant server gRPC mode PORT.
+      QDRANT_GRPC_PORT: 6334
       # Milvus configuration Only available when VECTOR_STORE is `milvus`.
       # The milvus host.
       MILVUS_HOST: 127.0.0.1
   #   # uncomment to expose qdrant port to host
   #   # ports:
   #   #  - "6333:6333"
+  #   #  - "6334:6334"
 
   # The nginx reverse proxy.
   # used for reverse proxying the API service and Web service.