milvus 2.0.2 grpc._channel._InactiveRpcError: ＜_InactiveRpcError of RPC that terminated with:_description":"connections to all backends failing"

报错

PipelineClient::predict pack_data time:1653468750.4422822
PipelineClient::predict before time:1653468750.4431794
Traceback (most recent call last):
  File "init_milvus.py", line 77, in <module>
    milvus_init.milvus_insert_init(milvus_init.id2corpus)
  File "init_milvus.py", line 43, in milvus_insert_init
    ret = self.client.predict(feed_dict=feed)
  File "/usr/local/lib/python3.7/site-packages/paddle_serving_server/pipeline/pipeline_client.py", line 202, in predict
    resp = self._stub.inference(req)
  File "/usr/local/lib/python3.7/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.7/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "connections to all backends failing"
	debug_error_string = "{"created":"@1653468750.444063159","description":"Failed to pick subchannel","file":"src/core/ext/filters/client_channel/client_channel.cc","file_line":5419,"referenced_errors":[{"created":"@1653468750.444051063","description":"connections to all backends failing","file":"src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.cc","file_line":335,"grpc_status":14}]}"

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解决方案

链接的端口出错了，模型服务，或者milvus服务，检查端口