Nagios Support Forum

Dear Support,

we are running nagiosxi 2012R1.7 on following platform we are getting error in mrtg file . at present file size is 3.2Mb and we will be adding up to 30Mb . we need immediate solution or fix for it.

Linux c1nms.zajil.com 2.6.32-358.2.1.el6.x86_64 #1 SMP Wed Mar 13 00:26:49 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

[root@c1nms mrtg]# ll
total 16100
-rw-r--r-- 1 root root 3210270 Jul 15 09:47 mrtg.cfg


2013-07-15 09:50:01 -- 2013-07-15 09:50:01: ERROR: I guess another mrtg is running. A lockfile (/var/lock/mrtg/mrtg_l) aged
300 seconds is hanging around. If you are sure that no other mrtg
is running you can remove the lockfile
2013-07-15 09:55:01 -- Started mrtg with config '/etc/mrtg/mrtg.cfg'
2013-07-15 10:55:01 -- Started mrtg with config '/etc/mrtg/mrtg.cfg'
2013-07-15 11:00:01 -- Started mrtg with config '/etc/mrtg/mrtg.cfg'
2013-07-15 11:00:01 -- 2013-07-15 11:00:01: ERROR: I guess another mrtg is running. A lockfile (/var/lock/mrtg/mrtg_l) aged
300 seconds is hanging around. If you are sure that no other mrtg
is running you can remove the lockfile

Do you have multiple MRTG.cfg files split apart? Do you have a extended timeout on any of the objects within this config, or these configs?

Please share the output of the following:

no we dont have multiple mrtg.cfg nor its splited. all hosts avg response time is between 1-10ms.
--------------------------------------------------------------------------------------------------------------------
*/5 * * * * root LANG=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lock/mrtg/mrtg_l --confcache-file /var/lib/mrtg/mrtg.ok --logging /var/log/mrtg.log

Is you system under heavy load during certain periods? It's possible that your polling is taking longer than the 5 min interval you've set in the crontab. Try changing the interval to 10 min (for testing purposes), and see if this is going to eliminate the issue.