tree 22e1a61acdbbe1459b190c4dbb6019360464b2e9
parent e9964c102312967a4bc1fd501cb628c4a3b19034
author Yehuda Sadeh <yehuda@hq.newdream.net> 1267227151 -0800
committer Sage Weil <sage@newdream.net> 1267730795 -0800

ceph: reset osd after relevant messages timed out

This simplifies the process of timing out messages. We
keep lru of current messages that are in flight. If a
timeout has passed, we reset the osd connection, so that
messages will be retransmitted.  This is a failsafe in case
we hit some sort of problem sending out message to the OSD.
Normally, we'll get notification via an updated osdmap if
there are problems.

If a request is older than the keepalive timeout, send a
keepalive to ensure we detect any breaks in the TCP connection.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>