gRPC query waits indefinitely while execution giving no output

[olympu...@gmail.com]

Hi, 

   I am trying to run example from "seldon-core/notebooks/kubectl_demo_gcp.ipynb" for gRPC. I am able to get token but gRPC query waits indefinitely. Finally I get following error :

{"access_token":"60b9ad42-90b9-4bb8-b90a-12308e35e584","token_type":"bearer","expires_in":42569,"scope":"read write"}
Traceback (most recent call last):
  File "test_request.py", line 53, in <module>
    grpc_request()
  File "test_request.py", line 50, in grpc_request
    response = stub.Predict(request=request,metadata=metadata)
  File "/usr/local/lib/python2.7/dist-packages/grpc/_channel.py", line 487, in __call__
    return _end_unary_response_blocking(state, call, False, deadline)
  File "/usr/local/lib/python2.7/dist-packages/grpc/_channel.py", line 437, in _end_unary_response_blocking
    raise _Rendezvous(state, None, None, deadline)
grpc._channel._Rendezvous: <_Rendezvous of RPC that terminated with (StatusCode.UNAVAILABLE, OS Error)>

Whats the issue?

Thanks,

Rishikesh