I have created a gRPC client/server for processing Unary requests. I have
had it working fine on my laptop. Now, I am working to deploy it to a
Kubernetes cluster in IBM Cloud. The Deployment succeeds and the Service is
running. I've tried this with both LoadBalancer and NodePort service types.
I have enabled GRPC_TRACE=all and GRPC_VERBOSITY=DEBUG. When the pod
starts, I see the logs below. I get about 20 repetitions of
RETURN_EVENT...QUEUE_TIMEOUT. When I make a request using grpcurl, I get
the message *transport is closing. *
Currently, I'm using an insecure credentials connection.
I have poured over a ton of posts around K8s and gRPC. It seemed pretty
straight forward, but I'm struggling to get this to work. Any help would be
greatly appreciated.
Log file
D0501 07:53:17.904046507 20 dns_resolver.cc:294] Using native
dns resolver
I0501 07:53:17.904189226 20 timer_manager.cc:88] Spawn timer
thread
I0501 07:53:17.904274322 20 init.cc:164] grpc_init(void)
I0501 07:53:17.904358489 35 timer_manager.cc:250] timers not
checked: expect another thread to
I0501 07:53:17.904396913 35 timer_manager.cc:197] sleep until
kicked
I0501 07:53:17.904765647 20 completion_queue.cc:501]
grpc_completion_queue_create_internal(completion_type=0, polling_type=0)
I0501 07:53:18.310402717 20 server.cc:1021]
grpc_server_create(0x55a6d0a0ad40, 0)
I0501 07:53:18.310629797 20 server.cc:1002]
grpc_server_register_completion_queue(server=0x55a6d093a980,
cq=0x55a6d0bce8a0, reserved=0)
I0501 07:53:18.330949779 20 server_chttp2.cc:33]
grpc_server_add_insecure_http2_port(server=0x55a6d093a980,
addr=0.0.0.0:50052)
I0501 07:53:18.331257146 20 tcp_server_custom.cc:382] SERVER
0x55a6d0b09cc0 add_port [::]:50052 error="No Error"
I0501 07:53:18.331726761 20 server.cc:1111]
grpc_server_start(server=0x55a6d093a980)
I0501 07:53:18.331884195 20 tcp_server_custom.cc:424] SERVER_START
0x55a6d0b09cc0
I0501 07:53:18.332028119 20 call_details.cc:31]
grpc_call_details_init(cd=0x55a6d0ad8170)
I0501 07:53:18.332155662 20 metadata_array.cc:29]
grpc_metadata_array_init(array=0x55a6d0ad81d0)
I0501 07:53:18.332369156 20 server.cc:1470]
grpc_server_request_call(server=0x55a6d093a980, call=0x55a6d0ad8168,
details=0x55a6d0ad8170, initial_metadata=0x55a6d0ad81d0,
cq_bound_to_call=0x55a6d0bce8a0, cq_for_notification=0x55a6d0bce8a0,
tag=0x55a6d0b73d60)
I0501 07:53:18.334480815 20 credentials.cc:183]
grpc_server_credentials_release(creds=0)
I0501 07:53:18.334693475 20 completion_queue.cc:952]
grpc_completion_queue_next(cq=0x55a6d0bce8a0, deadline=gpr_timespec {
tv_sec: -9223372036854775808, tv_nsec: 0, clock_type: 0 }, reserved=0)
I0501 07:53:18.334835887 20 completion_queue.cc:1060]
RETURN_EVENT[0x55a6d0bce8a0]: QUEUE_TIMEOUT
I0501 07:53:18.335157812 20 completion_queue.cc:952]
grpc_completion_queue_next(cq=0x55a6d0bce8a0, deadline=gpr_timespec {
tv_sec: -9223372036854775808, tv_nsec: 0, clock_type: 0 }, reserved=0)
I0501 07:53:18.335308566 20 completion_queue.cc:1060]
RETURN_EVENT[0x55a6d0bce8a0]: QUEUE_TIMEOUT
I0501 07:53:25.872128754 20 completion_queue.cc:952]
grpc_completion_queue_next(cq=0x55a6d0bce8a0, deadline=gpr_timespec {
tv_sec: -9223372036854775808, tv_nsec: 0, clock_type: 0 }, reserved=0)
I0501 07:53:25.872209655 20 completion_queue.cc:1060]
RETURN_EVENT[0x55a6d0bce8a0]: QUEUE_TIMEOUT
I0501 07:53:25.872281900 20 completion_queue.cc:952]
grpc_completion_queue_next(cq=0x55a6d0bce8a0, deadline=gpr_timespec {
tv_sec: -9223372036854775808, tv_nsec: 0, clock_type: 0 }, reserved=0)
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