Passive monitoring is running slow?

Marc Powell marc at ena.com
Fri May 4 00:15:56 CEST 2007



> -----Original Message-----
> From: Jonathan Call [mailto:jcall at verio.net]
> Sent: Wednesday, May 02, 2007 5:31 PM
> To: Marc Powell; nagios-users at lists.sourceforge.net
> Subject: RE: [Nagios-users] Passive monitoring is running slow?
> 
> 
> 
> > -----Original Message-----
> > From: nagios-users-bounces at lists.sourceforge.net
[mailto:nagios-users-
> > bounces at lists.sourceforge.net] On Behalf Of Marc Powell
> > Sent: Wednesday, May 02, 2007 3:39 PM
> > To: nagios-users at lists.sourceforge.net
> > Subject: Re: [Nagios-users] Passive monitoring is running slow?


> > Enable send_nsca in your OCSP script.
> > Test
> 
> Service Latency times spike again.
> Watching top for a few minutes reveals a LOT of send_nsca processes
> being spawned but few checks actually running. Of course the SNMP
checks
> themselves run very quickly but there always seems to be a send_nsca
> client running.  Not the same one either, always a different PID.
> 
> I timed the script itself (copied right off the Nagios documentation
> website) and it executes in a timely manner as well:
> 0.000u 0.009s 0:00.71 0.0%      0+0k 0+0io 0pf+0w
> 

All your information looks good so there appears to be something nagios
running nsca w/o environment and when you do it from the command line
with environment possibly. I would enable the debug option in nsca.cfg
and watch syslog on both boxes to see if there was any interesting
output there.

--
Marc

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