GRPC call error:

[albertnanda]

Hi,

I am getting the following error while making a GRPC call: status = StatusCode.UNAVAILABLE details = "Trying to connect an http1.x server"

The application is working, I have tested it with hydroservingUI web method.

Thanks, AN

[tidylobster]

Hello, @albertnanda

Can you provide a code you're using to establish connection with gRPC endpoint?

[albertnanda]

@tidylobster Here is the code

import grpc import hydro_serving_grpc as hs import numpy as np

channel = grpc.insecure_channel("localhost:80") stub = hs.PredictionServiceStub(channel) model_spec = hs.ModelSpec(name="tokenize", signature_name="tokenize") text = "The quick brown fox jumps over the lazy dog" tensor_shape = hs.TensorShapeProto(dim=[hs.TensorShapeProto.Dim(size=-1)]) text = text.encode('utf-8') tensor = hs.TensorProto(dtype=hs.DT_STRING, tensor_shape=tensor_shape, string_val=[text]) request = hs.PredictRequest(model_spec=model_spec, inputs={"text": tensor}) result = stub.Predict(request) print(result)

[albertnanda]

This is the complete error message: Traceback (most recent call last): File "client.py", line 15, in result = stub.Predict(request) File "/home/ubuntu/anaconda3/lib/python3.6/site-packages/grpc/_channel.py", line 550, in call return _end_unary_response_blocking(state, call, False, None) File "/home/ubuntu/anaconda3/lib/python3.6/site-packages/grpc/_channel.py", line 467, in _end_unary_response_blocking raise _Rendezvous(state, None, None, deadline) grpc._channel._Rendezvous: <_Rendezvous of RPC that terminated with: status = StatusCode.UNAVAILABLE details = "Trying to connect an http1.x server" debug_error_string = "{"created":"@1550587709.114299527","description":"Error received from peer","file":"src/core/lib/surface/call.cc","file_line":1036,"grpc_message":"Trying to connect an http1.x server","grpc_status":14}"

[KineticCookie]

Hi What service do you have on port 80? In our demo deployments envoy sidecar listens 80 port and redirects all GRPC traffic to the corresponding services. Looks like you have other service which listens this port. Or there is possibility that envoy encountered errors during initialization.

Could you please check that and provide the content of localhost:8082/clusters and localhost:8082/routes

[albertnanda]

@KineticCookie clusters.txt routes.txt

[KineticCookie]

Well, gateway::172.16.0.11:9091::rq_total::0 shows that GRPC requests land somewhere else. Could you please check your 80 port?

[albertnanda]

@KineticCookie sudo lsof -i :80 docker-pr 3565 root 4u IPv6 35035 0t0 TCP :http (LISTEN) sudo netstat -lnp | grep ':80 ' tcp6 0 0 :::80 ::: LISTEN 3565/docker-proxy

[albertnanda]

Deleted all the networks and config files, rebooted, seems to be working now