Nagios + 6.3-RELEASE == Hung Process
- From: "Marc G. Fournier" <scrappy@xxxxxxx>
- Date: Tue, 01 Jan 2008 12:32:07 -0400
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G'day ...
Yesterday, I setup nagios to do some system monitoring ... installed the
latest version from ports into a jail, so that I could easily move it around
between machines as I upgrade, without losing data ... after about 30 minutes
running, I get a second nagios process running (fork?) that takes up ch CPU
time as is available, and just hangs there until I kill -9 it ...
Figuring that it might be a problem with the jail (trying to access somethign
that isn't available to the process in a jail), I moved it to the physical
server level ... but, again, after ~30 minutes, its doing the same thing:
# ps aux | grep nagios
nagios 32065 73.2 0.1 10948 3516 ?? R 11:15AM 7:40.77
/usr/local/bin/nagios -d /usr/local/etc/nagios/nagios.cfg
nagios 82120 0.0 0.1 10948 3580 ?? Ss 10:47AM 0:01.18
/usr/local/bin/nagios -d /usr/local/etc/nagios/nagios.cfg
So, definitely not jail related ...
I've tried to do a 'truss -p 32065', it just hangs.
And: ktrace -f /tmp/output -p 32065 ... produces nothing:
# kdump -f /tmp/output
32065 nagios PSIG SIGKILL SIG_DFL
Once I kill -9 the process, a bunch of 'check_ping' processes start up and then
things go back to normal ...
My last kernel / world build on that box is: Mon Nov 12 06:43:30 AST 2007
After searching the 'Net a bit, came across this thread:
<http://www.nagiosexchange.org/nagios-users.34.0.html?&tx_maillisttofaq_pi1%5Bmode%5D=1&tx_maillisttofaq_pi1%5BshowUid%5D=7694>
That recommends modifying libmap.conf with:
[/usr/local/bin/nagios]
libpthread.so.2 libthr.so.2
libpthread.so libthr.so
This seems to fix the problem on the physical server, and am currently testing
it in the jail itself to make sure it fixes it there too ...
Should this be something that is more prominently documented somewhere? Maybe
in the port itself? azureus has similar problems that are fixed with entries
in libmap.conf, so its not "just a nagios issue" ...
- ----
Marc G. Fournier Hub.Org Networking Services (http://www.hub.org)
Email . scrappy@xxxxxxx MSN . scrappy@xxxxxxx
Yahoo . yscrappy Skype: hub.org ICQ . 7615664
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