Process checks

[Marc Powell]

5 minutes of researching the documentation --


> -----Original Message-----
> From: Rob Nelson [mailto:rob at capband.net]
> Sent: Wednesday, July 30, 2003 1:45 PM
> To: nagios-users at lists.sourceforge.net
> 
> How are process checks handled by Nagios? What I mean is if I set the
max
> concurrent checks to 10, why do I only ever see 4-5 checks running at
a
> time? Also, when I run into one bad check (i.e. failed ping), all the
> other
> checks stop until this one bad check times out three times in a row.

http://nagios.sourceforge.net/docs/1_0/checkscheduling.html

> 
> It doesn't make any sense, but I'm able to get a repeatable pattern
out of
> this by stopping nagios, removing the .log and .sav file and
restarting.
> Every time it gets to a downed host, it slows to a crawl. I am running
> Nagios 1.06b.

Also from that page --

"Also of note - when Nagios is check (sic) the status of a host, it
holds off on doing anything else (executing new service checks,
processing other service check results, etc). This can slow things down
a bit and cause pending service checks to be delayed for a while, but it
is necessary to determine the status of the host before Nagios can take
any further action on the service(s) that are having problems."

> 
> I have some other questions on things like latency (it says 1 / 2781 /
> 2643.1 seconds on the tactical overview. What the heck does that
mean?)
> and
> why service checks take soooo looong to process, but I have a feeling
the
> bottleneck is in failing checks. I still have 60 checks out of 150
that
> haven't processed because of this in *three hours*.

http://nagios.sourceforge.net/docs/1_0/tuning.html




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