Thanks Ken, that looks useful! On Friday, 18 August 2017 16:37:17 UTC+1, Ken Payson wrote: > > There are a few ways to track channel state in Python. If you only want to > block until it is connected, try > > grpc.channel_ready_future(channel).result() > > https://grpc.io/grpc/python/grpc.html#grpc.channel_ready_future > > > On Fri, Aug 18, 2017 at 7:23 AM, Julian Gold <[email protected] > <javascript:>> wrote: > >> I am working on an architecture with a single client and multiple >> servers. GRPC raises an exception if the client starts without a server >> present, so I tried modifying the HelloWorld sample to wait until a call >> succeeds: >> >> done = False >> while not done: >> try: >> response = stub.SayHello(helloworld_pb2.HelloRequest(name='you' >> ), timeout=1) >> print("Greeter client received: " + response.message) >> done = True >> except: >> print('Waiting for server connect...') >> time.sleep(1) >> >> >> Strangely, though this works, it takes quite a while to connect when the >> server is started after the client (about 10 seconds or more) before >> showing the result. A quick internet search shows there is a WaitForReady >> option in C#, but there doesn't seem to be an equivalent in Python? How >> else can I check if a connection is ready? >> >> >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "grpc.io" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at https://groups.google.com/group/grpc-io. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/grpc-io/a2f41bce-007a-4adb-8032-1ea3af6c5100%40googlegroups.com >> >> <https://groups.google.com/d/msgid/grpc-io/a2f41bce-007a-4adb-8032-1ea3af6c5100%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > >
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