nagios service check latency

Morris, Patrick patrick.morris at hp.com
Thu Apr 26 05:15:44 CEST 2007


> Ok i have a question about setting priority to service checks
> 
> since i have a handful of service check checking clusters of 
> servers i'd like the priority of those service checks as high 
> as for instance... 
> host checks
> 
> as in they happen regularly and almost instantly without latency
> 
> Now my service checks used to be REALLY high latency but i 
> removed unnecessary active checks on certain services. 
> However my service checks for my clusters are still latent by 
> about 5 minutes. Is there anyway to reduce this or just say 
> that a certain service check should have zero latency?

Latency is the amount of time it takes a check to run. If there were a
way to tell Nagios a check shouldn't have any latency, it wouldn't do
any good.  Nagios spawns the check, and that check runs as quickly as it
can after that. That amount of time isn't something you can change with
a configuration setting; it depends on what the check is (for example,
if it needs to load libraries or do other startup tasks that require
system resources), and the available resources on the machine doing the
checking.

There are some very good tuning tips in the docs here:

http://nagios.sourceforge.net/docs/2_0/tuning.html

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