Timo Veith wrote:
Rudy Gevaert wrote:
Some time ago we had some problems with sasl. When to many users are
connecting sasl starts blocking because it hasn't enough entropy.
Recompile sasl so it uses /dev/urandom instead of /dev/random.
Hello Rudy,
thank you for your tip. I recompiled cyrus-sasl to use /dev/urandom
whereafter I restartet cyrus. First it looked like timeouts were gone,
because nagios reportet nothing. But then after a few hours the timeouts
where back. :(
Did you restart saslauthd?
I also tried to raise the prefork number (0->1), but then my users told me
that they could not connect to the pop server anymore. Others still
could. Also the imapproxy didn't work anymore. I changed prefork back to
zero and it was ok again.
What I haven't done before was raising the file descriptor limit. I read
about the setrlimit -1 thing in the archive and remembered that I should
be no problem. Anyway I raised the number from 1024 to 20480. Don't know
if that will help but my feeling was that maybe cyrus is waiting
somehow / somewhere because it cannot open anymore files and has to close
some before. Just guessing ...
Any more hints?
Timo
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Rudy Gevaert Rudy.Gevaert@xxxxxxxx tel:+32 9 264 4734
Directie ICT, afd. Infrastructuur ICT Department, Infrastructure office
Groep Systemen Systems group
Universiteit Gent Ghent University
Krijgslaan 281, gebouw S9, 9000 Gent, Belgie www.UGent.be
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