Thank you, Willy! I will take a try with a new version if it could help :)

пт, 22 янв. 2021 г. в 11:43, Willy Tarreau <[email protected]>:

> Hi Maksim,
>
> On Thu, Jan 21, 2021 at 09:27:33PM +0300, ?????? ????????? wrote:
> > Hi!
> >
> > Can anyone please explain or point out in the documentation how streams
> in
> > HTTP/2 connection are balanced?
>
> Like any other HTTP stream. There's no relation between H2 streams. There
> was already no relation between H1 streams, but it was possible to know
> that one of them was the first one. For H2 there's no first one at all
> since they're all parallel.
>
> > Right now I have haproxy=2.1.4 with http/2 balancer configured and it
> seems
> > to me that gRPC-requests over a single connection from a client are
> always
> > forwarded to the same backend server.
> >
> > Am I right or not? Are there any configuration options for this?
>
> Not only there is no reason for this, but if you asked me how to achieve
> this I wouldn't know how to do it :-)
>
> The load balancing happens for each request, following the configured LB
> algorithm.
>
> > Forget to add my config. It looks like this one (http/2 end to end, no
> ssl,
> > random balanced):
> >
> > frontend grpc.service:8080
> >   bind ipv6@xxx:8080 proto h2
> >
> >   mode http
> >   option http-use-htx
> >   timeout client  30s
> >
> >   default_backend be1:grpc.service:8080
> >
> > backend be1:grpc.service:8080
> >   mode http
> >   balance random
> >
> >   retries 1
> >   timeout connect 25
> >   timeout server  30s
> >   timeout queue   1s
> >
> >   # Set other options
> >   option  http-use-htx
> >   option  redispatch
> >
> >   default-server weight 50
> >
> >   server server1:17355 xxx:17355 proto h2
> >   server server2:17355 yyy:17355 proto h2
> >   server server3:17355 zzz:17355 proto h2
>
> I see nothing wrong in this config, for me it's OK. However, is there
> any reason for you to run on a version that's affected by 221 known
> bugs ? Maybe what you're observing is just the consequence of one of
> these ?
>
>   https://www.haproxy.org/bugs/bugs-2.1.4.html
>
> Please update it and retry, just in case.
>
> Cheers,
> Willy
>

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