Nagios Support Forum

Red Hat Enterprise Linux Server release 6.2 (Santiago)
64bit
Manual Install
VMware machine

cpu load is very high. from 20 to even 200!

I already tried to optimize and repair database, and to change values from /etc/sysctl.conf file but cpu still is very high. About 70% of the checks are passive checks, active checks are made at another place and are sent to Nagios XI with nsce

I attach an image with a htop screen

This may not apply but some other users who are using SNMPTTD to manage traps noticed that it's not running in Daemon mode (install issues) and was artificially inflating CPU usage.

Check out:

http://support.nagios.com/forum/viewtop ... ptt#p34630

EDIT: Is this a virtual machine? I just looked at your htop and you have very high CPU queuing and very low utilization.

How many checks every 5 minutes are you trying to process? How full is the disk?

Problem solved, it was an issue out of our scope, a problem with the disk drawer where Nagios disk is located, systems department has solved the problem this morning.

Thanks for your help

Good deal, we were kind of scratching our heads on that one ; )