Hi,
> Is it possible to use HTTP keep-alive between haproxy and
> backend even if client does not use it?
> Client closes connection, but haproxy still maintains open
> connection to backend (based on some timeout) and re-use it
> when new request arrives.
>
> It will save some time for new connection setup between haproxy
> and backend and can be useful in case when server responds
> very fast (and connection rate it high).
That would be connection pooling/multliplexing and is not currently
supported. It is also pretty complex, not sure whether this is
something that will be done in 1.6.
Regards,
Lukas
