accommodate 7426 passive checks on nagios 3.0.3
Mark Young
myoung at nagios.org
Mon Nov 17 16:25:13 CET 2008
On Nov 16, 2008, at 9:16 PM, Marc Ismael wrote:
> Hi all,
>
> I have 7426 incoming passive checks on my nagios server. I turned on
> freshness check at every 60 seconds, check_result_reaper_frequency
> at 60 and max_check_result_reaper_time at 90. I am getting a lot of
> stale passive results. Anything off with these settings, or the rest
> of my config settings?
You have some interesting choices with your settings. If you have the
freshness and the reaper_frequency set to the same time of 60
seconds.The freshness threshold is the time in which Nagios should
consider a check to be stale. This is done by looking at the last
check's timestamp and comparing it to the threshold you set (60
seconds). While the reaper_frequency is the frequency in which Nagios
will take all the collected passive results and process them, which
you also have set at 60 seconds. You are setting up a condition where
most of your checks are running close to stale and, given any
processing time, with give you many stale results.
Depending on your how powerful your system is, you will need to either
increase your freshness threshold (try 300 seconds), decrease the
reaper frequency, or do both. You may have to play around with the
exact settings that will work with your system and the number of
checks you are performing. I would recommend you start with
increasing the freshness threshold.
Good Luck!
Mark Young
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Web: www.nagios.com
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