Hello Jason and thank for your reply.

I am fairly new to this stuff.

Concerning health checks, does it matter if I have only one simple server? So no load balancing etc.?


Dňa 25. 1. 2024 o 14:01 Jason Anderson via nginx napísal(a):
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.pin...@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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