tree 67cee3708980573bbd4557c848c1f201810a55ff
parent d8fecee291b9d5c9884bd1a4639dd1d0cdd56f1c
author Willy Tarreau <w@1wt.eu> 1438713952 +0200
committer Willy Tarreau <w@1wt.eu> 1438853661 +0200
encoding latin1

MAJOR: backend: initial work towards connection reuse

In connect_server(), if we don't have a connection attached to the
stream-int, we first look into the server's idle_conns list and we
pick the first one there, we detach it from its owner if it had one.
If we used to have a connection, we close it.

This mechanism works well but doesn't scale : as servers increase,
the likeliness that the connection attached to the stream interface
doesn't match the server and gets closed increases.