[lvs-users] Persistent connections not persisting after failover
Joseph Mack NA3T
jmack at wm7d.net
Tue Aug 19 23:19:12 BST 2008
On Tue, 19 Aug 2008, Nicholas Guarracino wrote:
>> is there persistence on the backup director?
> Yes, ipvs is using persistence on both servers. Or do you
> mean the sync daemon?
sorry, I was ambiguous. On the backup director, when it's
receiving updates from the syncd on the master director, do
you see the persistence flag? Come to think of it, I don't
know if the persistence on the backup director comes from
the synchd updates or from running ipvsadm when the
backup becomes the master :-(
> Initially I was thinking that no persistence would be
> needed at all for the SH scheduler, but it looks like
> that's not the case since I'm assuming the list of
> available realservers could be filled in any order?
This was my reservation when I mentioned the -SH scheduler.
I don't know what would happen there and I expect noone's
> I did see some of the updates you mentioned. They seemed
> mostly related to highly loaded systems, and instead of
> sleeping for a fixed amount of time, waking up whenever
> there is data to process. I doubt those changes would help
> here since I only have two clients connected, but a later
> kernel is definitely worth trying.
I wasn't real hopeful of anything in there being the cure,
but if you could reproduce the problem with a recent kernel,
it would save us tracking down a problem that was solved
long ago, even if then it wasn't showing the symptoms you've
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
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