[ejabberd] Empty Roster or Auth Failed.

Jorge Guntanis jorge at guntanis.com
Tue Oct 7 23:17:48 MSD 2008

I have been playing around with some settings, both on the jabber
cluster and the mysql cluster.
Basically incremented the amount of connections of the jabber side
from 10 to 100 and set the keep alive mysql query thing to 60 from
I'm not sure if the problem was that the connection was timing out or
it was that it didn't have enough connections.
My question is the amount of connections to the mysql server a
determining factor of  the amount of connections that server can
Do you guys have any "best-practice" on finding out the best value for this?


On Mon, Oct 6, 2008 at 3:45 PM, Jorge Guntanis <jorge at guntanis.com> wrote:
> Hi,
> I have a cluster of two ejabberd nodes using a mysql database on a
> separate mysql cluster, and in the front I have a F5 load balancer
> that basically sends traffic to both of this boxes.
> I have noticed, that at random times, I get a series of authentication
> denied and eventually it will log in. About 50% of the time, the
> roster comes up empty, but if a contact updates their presence, then
> it will show up in the roster.
> At first glance it seems like it loses the connection to the DB, but
> I'm not sure yet. Has someone experienced something similar? Is there
> a setting that I should change either on the mysql server or in
> ejabberd to make the connections more stable?
> I would appreciate your help.
> thanks
> Jorge

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