On Wed, Sep 7, 2011 at 1:18 PM, Jonathan Gazeley
jonathan.gaze...@bristol.ac.uk wrote:
Hi list,
I've used Nagios for a few years now, largely without any problems, but
since I just rebuilt my Nagios server I'm having a problem.
My nagios log file is full of entries like this, that recur every few
seconds:
Error: Unable to rename file
'/var/log/nagios/spool/checkresults/checkf8zhrH' to
'/var/log/nagios/spool/checkresults/c8M6TqA': No such file or directory
Warning: Unable to move file
'/var/log/nagios/spool/checkresults/checkf8zhrH' to check results queue.
Error: Unable to rename file
'/var/log/nagios/spool/checkresults/check3OnQ7y' to
'/var/log/nagios/spool/checkresults/cKzmO7d': No such file or directory
Warning: Unable to move file
'/var/log/nagios/spool/checkresults/check3OnQ7y' to check results queue.
Error: Unable to rename file
'/var/log/nagios/spool/checkresults/checkbsjxap' to
'/var/log/nagios/spool/checkresults/c6TEIkd': No such file or directory
Warning: Unable to move file
'/var/log/nagios/spool/checkresults/checkbsjxap' to check results queue.
Error: Unable to rename file
'/var/log/nagios/spool/checkresults/checkyHICiz' to
'/var/log/nagios/spool/checkresults/c28Thaw': No such file or directory
Warning: Unable to move file
'/var/log/nagios/spool/checkresults/checkyHICiz' to check results queue.
Error: Unable to rename file
'/var/log/nagios/spool/checkresults/checknXxstZ' to
'/var/log/nagios/spool/checkresults/cNhpsRH': No such file or directory
Warning: Unable to move file
'/var/log/nagios/spool/checkresults/checknXxstZ' to check results queue.
I see from searching for the problem online that it can be caused by
multiple running instances of nagios. When I do a ps -ef | grep nagios
there are usually 4 processes - one that seems persistent (2337 in this
case) and the other 3 that disappear and reappear with new pids. Killing
the 3 extra processes makes them just reappear. Is this normal?
[root@monitor ~]# ps -ef | grep \/usr\/sbin\/nagios
nagios 2337 1 0 13:05 ? 00:00:02 /usr/sbin/nagios -d
/etc/nagios/nagios.cfg
nagios 15453 1 0 13:12 ? 00:00:00 /usr/sbin/nagios -d
/etc/nagios/nagios.cfg
nagios 15621 1 0 13:12 ? 00:00:00 /usr/sbin/nagios -d
/etc/nagios/nagios.cfg
nagios 15707 1 0 13:12 ? 00:00:00 /usr/sbin/nagios -d
/etc/nagios/nagios.cfg
root 15744 6284 0 13:12 pts/0 00:00:00 grep /usr/sbin/nagios
It is usual for the mutiple process (at least on our systems anyway ;)
Little confused about your PPids though, eg should they not be owned
by the original Nagios process?
~# ps -ef | grep nagios.cfg
root 22219 22001 0 16:00:50 pts/9 0:00 grep nagios.cfg
nagios 22192 9808 0 16:00:49 ? 0:00
/opt/nagios/bin/nagios -d /opt/nagios/etc/nagios.cfg
nagios 22207 9808 0 16:00:50 ? 0:00
/opt/nagios/bin/nagios -d /opt/nagios/etc/nagios.cfg
nagios 22213 9808 0 16:00:50 ? 0:00
/opt/nagios/bin/nagios -d /opt/nagios/etc/nagios.cfg
nagios 9808 19242 3 14:27:08 ? 5:57
/opt/nagios/bin/nagios -d /opt/nagios/etc/nagios.cfg
nagios 22212 9808 0 16:00:50 ? 0:00
/opt/nagios/bin/nagios -d /opt/nagios/etc/nagios.cfg
nag03 ~]# ps -ef | grep nagios.cfg
nagios 757 1 24 Aug15 ?5-20:20:43 /usr/sbin/nagios -d
/etc/nagios/nagios.cfg
nagios 27004 757 0 16:02 ?00:00:00 /usr/sbin/nagios -d
/etc/nagios/nagios.cfg
nagios 28460 757 0 16:02 ?00:00:00 /usr/sbin/nagios -d
/etc/nagios/nagios.cfg
nagios 29513 757 0 16:02 ?00:00:00 /usr/sbin/nagios -d
/etc/nagios/nagios.cfg
nagios 29760 757 0 16:02 ?00:00:00 /usr/sbin/nagios -d
/etc/nagios/nagios.cfg
nagios 30516 757 0 16:02 ?00:00:00 /usr/sbin/nagios -d
/etc/nagios/nagios.cfg
hth
--
ritchie
This is a 64-bit CentOS 6.0 virtual machine. It was running SELinux but
I disabled it for debugging in case it was causing problems.
Permissions on ls -la /var/log/nagios/spool/checkresults/ and parents
are traversable and writable by the nagios user.
I also saw online that sometimes permissions on /dev/null can cause this
problem, but in my case /dev/null is world-writable so I can't see a
problem.
I adjusted max_check_result_file_age to 0 in case my checkresult files
were being deleted prematurely, but the problem persists.
So, I have no idea what to look at next while troubleshooting this. Can
anyone suggest a pointer?
Many thanks,
Jonathan
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