NSCA using PROCESS_FILE
Gerd Mueller
gmueller at netways.de
Thu Feb 22 20:15:50 CET 2007
We are already using ocsp sweeper from nagiosexchange. (at Ton: we need ochp as well) This improves the performce. but we still have latencies upto 100 sec. :( So I would call this just a workaround.
Gerd
-- Ursprüngl. Mitteil. --
Betreff: Re: [Nagios-devel] NSCA using PROCESS_FILE
Von: "Thomas Guyot-Sionnest" <Thomas at zango.com>
Datum: 22.02.2007 18:54
If I were you I'd use Nagios ability to write performance data to a
file/pipe for ohcp/oscp functionality.
Send the data to a pipe and have a Perl (Or anything else you want) daemon
read that pipe and spawn send_nsca processes. One good thing with that also
is that you could send batch updates since send_nsca can receive multiple
results in a single run.
Thomas
> -----Original Message-----
> From: nagios-devel-bounces at lists.sourceforge.net
> [mailto:nagios-devel-bounces at lists.sourceforge.net] On Behalf
> Of Gerd Mueller
> Sent: February 22, 2007 10:56
> To: Nagios Developers List
> Subject: Re: [Nagios-devel] NSCA using PROCESS_FILE
>
>
> Am Dienstag, den 20.02.2007, 08:48 -0600 schrieb Ethan Galstad:
> > Gerd Mueller wrote:
> > > Hi list!
> > >
> > > Is there a nsca which supports already the Nagios3
> external command
> > > PROCESS_FILE? Or any suggestions how to use PROCESS_FILE for
> > > inter-Nagios-communication with ohcp/oscp?
> > >
> > > Cheers,
> > >
> > > Gerd
> >
> > NSCA hasn't been modified to use the new PROCESS_FILE
> command, but I'll
> > start working on that in the next few weeks. Right now I'm
> > concentrating on documentation.
>
> I really need this new nsca feature. Inter-master-slaves communication
> in our test environment (about 3000 hosts and livesystem will
> have much
> more hosts) via nsca causes the slaves' latency to grow massiv (up to
> hours!). Whereas a slave with same hardware and same amount of checks
> but without any ocsp/ochp does nearly nothing (latency < 1sec.!).
>
> I think the major bottleneck - the serial execution of ocsp/ochp still
> exists in Nagios3. So Ton's comment on this
> (http://altinity.blogs.com/dotorg/2006/11/caching_nsca_da.html) is
> still true.
>
> I expect the new PROCESS_FILE option to avoid this bottleneck. The new
> nsca client has to be fast enough without any slowing down the slave
> itself while reading and caching. But I really would appreciate if the
> main cause of the problem - the ocsp/ohcp executions - could be
> deserialized.
>
> Let me now if I can support the development with testing, coding, ...
>
> Gerd
>
>
>
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