Re: [Nagios-devel] Strange load average with Nagios 3
Posted: Sun Dec 13, 2009 3:40 am
Old thread but wanted to follow up as our situation is now resolved
regarding saw tooth wave patterns of load average every N hours as
nagios runs on a nagios 3.x poller of ours.
Our poller server was on RHEL 5.1 (kernel 2.6.18-53). We upgraded the
host in-box to RHEL 5.4 (kernel 2.6.18-164.6.1), upgraded Nagios
source from 3.0.3 to 3.2.0, and recompiled Nagios and all NEB modules
we use.
We noticed a 200% increase in performance (polling cycle dropped from
4.5 minutes to 2.5 minutes) and a cessation of the sawtooth load
average pattern
. along with a 20-30% drop in system load as
reported by the OS!
We have seen similar boosts in performance when upgrading from RHEL
5.2 or 5.3 as well; I wish we had been able to nail down what
specifically did this for us among the hundreds of RPMs involved in
the upgrade.
Regards,
Max
This post was automatically imported from historical nagios-devel mailing list archives
Original poster: [email protected]
regarding saw tooth wave patterns of load average every N hours as
nagios runs on a nagios 3.x poller of ours.
Our poller server was on RHEL 5.1 (kernel 2.6.18-53). We upgraded the
host in-box to RHEL 5.4 (kernel 2.6.18-164.6.1), upgraded Nagios
source from 3.0.3 to 3.2.0, and recompiled Nagios and all NEB modules
we use.
We noticed a 200% increase in performance (polling cycle dropped from
4.5 minutes to 2.5 minutes) and a cessation of the sawtooth load
average pattern
. along with a 20-30% drop in system load asreported by the OS!
We have seen similar boosts in performance when upgrading from RHEL
5.2 or 5.3 as well; I wish we had been able to nail down what
specifically did this for us among the hundreds of RPMs involved in
the upgrade.
Regards,
Max
This post was automatically imported from historical nagios-devel mailing list archives
Original poster: [email protected]