milvus: can't get the connection to the docker server

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Describe the bug A clear and concise description of what the bug is.

Hello ,

I got an issue when i try to run the example.py script to test milvus server. I deploy milvus as container on port 19121, and i try to execute the script from the same machine with (Host=Ip address of the host machine and port =19121), but ii got this issue. I used pymilvus 1.0.1 version, python 3.6.9 version ########################################################################## Retry to connect server 127.0.0.1:19121 failed. Traceback (most recent call last): File “/home/azureuser/.local/lib/python3.6/site-packages/milvus/client/grpc_handler.py”, line 207, in ping ft.result(timeout=timeout) File “/home/azureuser/.local/lib/python3.6/site-packages/grpc/_utilities.py”, line 140, in result self._block(timeout) File “/home/azureuser/.local/lib/python3.6/site-packages/grpc/_utilities.py”, line 86, in _block raise grpc.FutureTimeoutError() grpc.FutureTimeoutError

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File “example.py”, line 127, in <module> main() File “example.py”, line 27, in main milvus = Milvus(_HOST, _PORT) File “/home/azureuser/.local/lib/python3.6/site-packages/milvus/client/stub.py”, line 97, in init self._pool = SingletonThreadPool(pool_uri, **pool_kwargs) File “/home/azureuser/.local/lib/python3.6/site-packages/milvus/client/pool.py”, line 226, in init self._prepare() File “/home/azureuser/.local/lib/python3.6/site-packages/milvus/client/pool.py”, line 231, in _prepare conn.client().ping() File “/home/azureuser/.local/lib/python3.6/site-packages/milvus/client/grpc_handler.py”, line 218, in ping raise NotConnectError(‘Fail connecting to server on {}. Timeout’.format(self._uri)) milvus.client.exceptions.NotConnectError: Fail connecting to server on 127.0.0.1:19121. Timeout ########################################################################

Method of installation

• Docker/cpu

• Milvus version (master or released version)

Configuration file Settings you made in server_config.yaml