Nagios Support Forum

Queue looks fine, and our dev said he found nothing of note in the retention.dat. If you are comfortable patching and recompiling Core, we have a patch that will add in some debug logging for the Compensating messages. I have attached it here, let us know if you need assistance. I patched it and re...

This might be related to an NDO bug that was fixed in recent versions. What is the output of ipcs -q on your Nagios system? ------ Message Queues -------- key msqid owner perms used-bytes messages 0x68010002 65536 nagios 600 16384 16 0xc3013798 131073 nagios 600 16384 16

Unfortunately the scheduling queue froze again yesterday. I will leave it in this state in case you want to look at some files while the scheduling is not working.

OK, I followed your instructions. I will let you know if this fixes it.

I found a post here that may correlate to the issue you are experiencing - https://support.nagios.com/forum/viewtopic.php?f=6&t=29323&start=10#p112580 Can you post the contents of the file below for us to review? /etc/sysctl.conf cat /etc/sysctl.conf # # /etc/sysctl.conf - Configuration fil...

Haven't gotten an answer from our Dev yet, but with the holidays we haven't been in the office much until this week. In the meantime though, did you ever find out if anything was happening on the network when this occurs? Backups, scans, updates, reboots, anything that might cause some interruption...

Did the retention.dat files uncover a possible cause of the problem?

When it freezes, is the cpu usage high? About once a month the scheduling queue freezes and even restarting nagios does not resolve it, I also have to delete retention.dat. Send us a copy of the retention.dat. If deleting it resolves it, there might be something in there to point me to where the pr...

First of all a 1500 seconds time deviation is not normal for ntp. We agree, jolson mentioned this above. Second, why would nagios stop processing the scheduled queue after a time change? Nagios uses in-memory timestamps to determine when the next checks should be run, notifications be sent, etc. Wh...

rkennedy wrote:Can you post the result of the following command for us to look at? ntpstat

Sure:

root@tibet:~# ntpstat
synchronised to NTP server (10.116.11.1) at stratum 4
time correct to within 388 ms
polling server every 1024 s