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]> 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]. > To post to this group, send email to [email protected]. > 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. > -- 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]. To post to this group, send email to [email protected]. 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/CAGm2-Y5xGUz91%2Bre6P9NbjKjyrkfXa3M2AtEiz6853E4atCiMA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
