Hi Godbach!

> I am wondering that whether server side keepalive you said is
> http keepalive between haproxy and server or not.

Thats it exactly.



> After testing lastest snapshot, http keepalive has already
> token effect between haproxy and server under such conditions:

What you are seeing is not http keepalive between haproxy
and the server, but is actually between the client and the
server, because the way you configured it, haproxy is in tunnel
mode.

This is from the docs:

> By default HAProxy operates in a tunnel-like mode with regards
> to persistent connections: for each connection it processes
> the first request and forwards everything else (including
> additional requests) to selected server.


Full keepalive support on the server side means something else.
For example we could have long-lived backend tcp connection to
serve more than one frontend users (theoretically).



Regards,
Lukas                                     

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