Unable to move file to check results queue
Jonathan Gazeley
jonathan.gazeley at bristol.ac.uk
Wed Sep 7 14:18:51 CEST 2011
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 at 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
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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