[Kroupware] kolab hangs periodically

[Nicolas Huillard]

This may be the (dead-)locking problem in imapd. Read my previous post 
about that.
When imapd components start to dead-lock mutually, they all eat memory, 
and stack up. This could lead to memory exhaustion (even with 2GB, 
specially with a large number of users).
Stephan Buys sent me imapd 2.1.15 that I didn't install yet. This WE, I 
saw a rush of 6000 mails in a few minutes (bad alerting), that blocked 
lmtpd processes and consumed 200MB+ memory. The mailq flushed quickly 
and everything was good after a kolab restart.

NH

d4rke1f at katamail.com wrote:

> Hi,
> I am running a kolab installation (1.0.8 or something) with a large user base (3000+ users).
> Every 5 days or so, I get a segmentation fault on Apache, and the imap services get stuck (ie no banner is received when telnetting).
> in the error log I can see something like this:
> Sun Nov 9 18:46:50 2003] [notice] child pid 15150 exit signal Segmentation fault (11)
> or I get some Apache's out of memory message.
> 
> Kolab is running on a smtp server with 2Gigs of ram.
> kernel 2.4.20-20.7smp 
> Can someone please help me out?
> Thanks in advance.
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