Configuration adjustment for GRPC service

[Jason Anderson]

Have you tried configuring grpc timeouts on NGINX?

This combined with an upstream healthcheck should prevent any client
connections that aren't possible for NGINX to service.

https://nginx.org/en/docs/http/ngx_http_grpc_module.html#grpc_connect_timeout

https://docs.nginx.com/nginx/admin-guide/load-balancer/grpc-health-check/


Regards,

Jason

On Thu, Jan 25, 2024, 6:01 AM Ľuboš Pinteš <lubos.pintes at seznam.cz> wrote:

> Hello, everybody,
> I am implementing a GRPC service which has methods, i.e. request/reply
> and one streaming method, through which the server sends events at
> random intervals.
> The GRPC server is written in Go, the client in C#, we are using Grpc.Core.
>
> If the server is not running and I call one of the request/reply
> methods, an error occurs as I expect. But if I call the streaming
> method, Nginx accepts the connection and the client gets stuck on
> calling await events.ResponseStream.MoveNext(...);
>
> I would like to ask how to configure Nginx so that an error occurs even
> if the streaming method is called if the server is not running, e.g. it
> restarts out of my control if the server on which my service is running
> restarts.
>
> Thank you
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