How to avoid client block forever when connecting an non-exist server?

[xiaona...@gmail.com]

Hi all,

Greetings from me! I find in greeter_client.cc code: 

    GreeterClient greeter(grpc::CreateChannel(

          "localhost:50051", grpc::InsecureChannelCredentials()));

If I use a fake host name, such as "badhost":  

        GreeterClient greeter(grpc::CreateChannel(

          "badhost:50051", grpc::InsecureChannelCredentials()));

I find the greet_client will block forever at my ArchLinux server. 

Is there any method to avoid this case? Thanks very much in advance!

Best Regards

Nan Xiao

[Amit Saha]

You could set a timeout while creating the channel. https://github.com/grpc/grpc/issues/3954 may help you.

--
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 grpc-io+u...@googlegroups.com.
To post to this group, send email to grp...@googlegroups.com.
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/f7ea3e0c-aae8-4c57-bf89-58e3cf6ea3ee%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[Nan Xiao]

Hi Amit,

Thanks for your response!

But I think set_deadline doesn't help. For example, if set_deadline(10
seconds), assume my client sends a very large packet whose time
exceeds 10 seconds, the client still disconnects the server although
the transmission is still on-going.

Best Regards
Nan Xiao

[Amit Saha]

On Fri, 6 Oct 2017 at 7:29 pm, Nan Xiao <xiaona...@gmail.com> wrote:

Hi Amit,

Thanks for your response!

But I think set_deadline doesn't help. For example, if set_deadline(10
seconds), assume my client sends a very large packet whose time
exceeds 10 seconds, the client still disconnects the server although
the transmission is still on-going.

Sorry I may have misunderstood your original query. 

Is your concern that the server is not functioning correctly, a channel is created  but a client request still blocks? 

If so, You could implement a wrapper (client interceptor) which will disconnect the client if a request takes longer than your desired timeout seconds? 

Is your c