[Kolab-devel] kolabd eats memory

[Maximilian Winkler]

Hi,

we are running Kolab2 successfully in a production environment 
(university campus). It was working without any problems for three month 
with about 60 users (we do not use much groupware stuff, just simple 
emailing).

As of June, we have about 2500 users in our ldap. Ok, we were hit by 
some ldap crashes first when we had a lot of entries to write. Ldap 
performance could be improved by indexing and tweaking the cache (as the 
Kolab team suggested).

After the cyrus mailboxes.db crashed several times, we changed to the 
skiplist database format which is much more robust as BDB. We also 
integrated Maia Mailgard (http://www.renaissoft.com/projects/maia/) 
which is a great software for spam and virus management.

Yesterday (after 2 weeks of kolab uptime), the kolabd process consumed 
about 40 % of available RAM (which is actually 2 GB). The system started 
swapping to the hard disk, which was no fun (much RAM was needed for 
apache processes -> squirrelmail). I had to do /etc/init.d/ kolab stop

Any ideas why kolabd eats so much memory?

with kind regards,
Maximilian Winkler

Dipl.-Ing. (FH) Maximilian Winkler
FH Deggendorf - University of Applied Sciences
Rechenzentrum - Computer center
Edlmairstr. 6 + 8; 94469 Deggendorf
Germany