NSCA and Latency

[Hendrik BŠäcker]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1



Jonathan Call schrieb:
> I believe Andreas Ericsson has also written a broker module for NSCA. It
> is apparently still in its testing/alpha stages so you would have to
> contact that person directly.
> 

Or you give it a direct try and feed Andreas with some scaling information:
http://git.op5.org/git/?p=nagios/pnsca.git;a=summary


>  
> 
> Jonathan
> 
>  
> 
>  
> 
> ------------------------------------------------------------------------
> 
> *From:* Maxwell,Brady [mailto:maxwellb at oclc.org]
> *Sent:* Thursday, October 23, 2008 8:42 AM
> *To:* nagios-users at lists.sourceforge.net
> *Subject:* [Nagios-users] NSCA and Latency
> 
>  
> 
> My Environment:
> 
> 3 x Dell 2950 Dual DualCore and 8 GB of RAM
> 
> One system runs checks against our Linux servers
> 
> One runs checks against our Windows servers
> 
> We are running SLES10 update 3
> 
> Both systems use nsca to send their check results to a third server that
> displays the service checks for our operators.
> 
> All three systems are on the same vlan but separate cisco switchs.
> 
> I am running nsca in daemon mode on the central server with this command
> 
> /usr/local/nagios/bin/nsca -c /usr/local/nagios/etc/nsca.cfg –daemon
> 
> Nsca.cfg is as follows:
> 
> pid_file=/var/run/nsca.pidserver_port=5667#server_address=192.168.1.1nsca_user=nagiosnsca_group=nagios#nsca_chroot=/var/run/nagios/rwdebug=1command_file=/usr/local/nagios/var/rw/nagios.cmdalternate_dump_file=/usr/local/nagios/var/rw/nsca.dumpaggregate_writes=1append_to_file=1max_packet_age=300password=xxxxxxxxxxdecryption_method=14
> 
>  
> 
> I just set the aggregate and append options to try and fix the problem
> they were not set before either way the results are the same.
> 
> Ok so on the 2 servers doing the checks…. Everything runs fine even with
> the OCSP running my send_service_check_results script. My script is
> pretty much straight out of the book.
> 
> #!/bin/sh# Arguments:# $1 = Hostname of the host (using the $HOSTNAME$
> macro)# $2 = Service description of the service (using the $SERVICEDESC$
> macro)# $3 = Service status id of the service (using the
> $SERVICESTATUSID$ macro)# $4 = Output of the Service Check (using the
> $SERVICEOUTPUT$ macro)/bin/echo "$1","$2","$3","N3 - $4" |
> /usr/local/nagios/libexec/send_nsca -H 10.10.129.37 -c
> /usr/local/nagios/etc/send_nsca.cfg -d ","
> 
> Like I said everything is fine on the 2 servers even with OCSP on.
> Between the 2 servers we are running about 10k service checks, latency
> is very low just a few seconds. However if I turn on the NSCA Deamon on
> the central server my latency creeps up to about 1500+ seconds with in
> an hour and just gets worse from there on both remotes. The checks that
> should run every 5 minutes on the 2 remote servers end up running every
> few hours or less. The central server is doing 0 active checks.
> 
> I set debug mode and that proved to provide very little insight into the
> problem.
> 
> CPU and Mem stats are both very low on all three server. The same thing
> can be said for the network, network utilization is less than 2% and
> there are no errors on the interfaces. Overall hardware utilization is
> 10% or less on these three systems.
> 
> So my question is has anyone had this kind of problem with NSCA? What am
> I missing? Should I be batching my service checks on the remote servers?
> Should I be using xinetd for NSCA instead of deamon mode?
> 
> Thanks
> 
> Brady
> 
> 
> This email message is intended for the use of the person to whom it has
> been sent, and may contain information that is confidential or legally
> protected. If you are not the intended recipient or have received this
> message in error, you are not authorized to copy, distribute, or
> otherwise use this message or its attachments. Please notify the sender
> immediately by return e-mail and permanently delete this message and any
> attachments. Verio, Inc. makes no warranty that this email is error or
> virus free. Thank you.
> 
> 
> ------------------------------------------------------------------------
> 
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> Build the coolest Linux based applications with Moblin SDK & win great prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Nagios-users mailing list
> Nagios-users at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/nagios-users
> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
> ::: Messages without supporting info will risk being sent to /dev/null
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.8 (Darwin)

iEYEARECAAYFAkkA14gACgkQlI0PwfxLQjlRgQCdGcEJtZOA9j/zDGBmlTi/FNdm
OEUAn0QR2LqsriHHfjnhSWUSKgwAycHX
=MW1U
-----END PGP SIGNATURE-----

-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null