Reduce number of logs

[johndoe]

I believe nagios XI is eating alot of my DISK IO, what steps can i make to ensure logs and other things don't use so much disk IO? a.k.a which and how can i remove unnecessary logs?

[abrist]

There are a number of things that can cause a large amount of disk I/O in XI. Lets check what the largest offenders are with iotop:

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yum install iotop -y
/usr/sbin/iotop

[johndoe]

So it appears the disk IO was being consumed by something else which i fixed, however and continuing on the topic of reducing the number of logs how can I get rid of the following on /var/log/messages:

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Jan 26 13:45:28 localhost nagios: Warning: Check result queue contained results for service 'XXXXXX' on host 'XXXXXX', but the service could not be found!  Perhaps you forgot to define the service in your config files?
Jan 26 13:46:08 localhost nagios: SERVICE ALERT: XXXXXX;TIME;OK;HARD;1;TIME OK - 0 second time difference
Jan 26 13:53:48 localhost nagios: Warning: The results of service 'XXXXXX' on host 'XXXXXX' are stale by 0d 0h 1m 0s (threshold=0d 0h 4m 0s).  I'm forcing an immediate check of the service.

As for the first message, i know the object is unconfigured (that one and several others) but i dont need nagios always writting that to logs, would like to disable.
As for the second message... I dont need it also to log me when things are ok... would like to get rid of it being logged.
As for the third message... i use certain thresholds for passive checks, that is fine... What i do not understand is what nagios is always trying to do with "forcing an immediate check of the service", is nagios trying an active check?

[scottwilkerson]

edit /usr/local/nagios/etc/nagios.cfg
change to

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use_syslog=0

Then restart nagios

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service nagios restart