To clarify, are you saying that after your client loses its connection to
every server, it never reestablishes a connection with any of them?

On Wed, Oct 25, 2017 at 10:42 PM <[email protected]> wrote:

> I'm trying to get a gRPC client/server running using nodejs under Docker
> swarm.
>
> The gRPC server is setup using Dockers `endpoint_mode: dnsrr` so that dns
> has multiple A records (one for each instance of the server).  The gRPC
> client is running as another Docker service, with the gRPC option 
> {'grpc.lb_policy_name':
> 'round_robin'}.  With this setup, everything runs nicely and requests are
> load balanced between the gRPC server instances.
>
> If I restart the gRPC servers and they get the same IP addresses as they
> previously had, everything continues to work well, the client is able to
> re-establish connectivity.  However, if the IP addresses change, the client
> never manages to establish contact with the new server instances.
>
> My understanding was as soon as all 'sub-channels' were unavailable, gRPC
> was supposed to requery DNS.  This doesn't appear to be happening.
>
> I was using version 1.6.6, however have also tried 1.7.0-pre1 and getting
> the same results.
>
> Appreciate any help or guidance anyone is able to provide.
>
> Regards,
> Daniel
>
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