I have a unary streaming service from a Python server (1.8.4) to C# client
(1.8.3).
When I signal the Python to shutdown (TERM15) the shutdown method in the
code listing below is called, the intention of which is to terminate the
rRPCs gracefully, and shut the server down.
This works when I'm running a server on localhost, an RpcException with the
expected status is raised: `Status(StatusCode=Cancelled,
Detail="Completed")`
However, when running the server on GKE and terminating the pod I receive:
`Grpc.Core.RpcException: Status(StatusCode=Unknown, Detail="Stream
removed")` in the client. The python server is behind an haproxy ingress
controller and google-cloud-endpoint proxy, but in my understanding neither
of these components should affect the connection.
Can anybody think what could be causing the different statuses in the
RpcException on the client?
Thanks, Mark
def MyHandler(self, request, context):
while not stop_event.isSet():
try:
yield update_q.get(True, 0.1)
except queue.Empty:
continue
context.set_code(grpc.StatusCode.CANCELLED)
context.set_details("Completed")
def shutdown(subscriber_service: StreamsService,
executor: futures.ThreadPoolExecutor,
server: grpc.Server, exit_code):
logger.info("Stopping stream handlers")
for stop_event in subscriber_service.stop_events:
stop_event.set()
logger.info("Stopping executor")
executor.shutdown()
logger.info("Stopping server")
ev: threading.Event = server.stop(grace=10) # allows RPCs to terminate
gracefully
logger.info("Waiting for server to stop gracefully")
ev.wait()
logger.info("Stopping process with exit code {}".format(exit_code))
sys.exit(exit_code)
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