nsca daemon performance

[Noel Platzke]

If you're running the nsca daemon in xinetd you can up the number of threads
and connections. I had a similar issue as I started adding services and
eventually fixed it by adding these lines to /etc/xinetd.d/nsca

        instances       = UNLIMITED
        per_source      = UNLIMITED
        cps             = 5000 0



On Tue, May 4, 2010 at 2:53 PM, Ford, Andy <andrew.ford at wachovia.com> wrote:

>  I’m having a problem with my nsca daemon (v. 2.7.2) in a distributed
> monitoring setup (nagios 3.2.1 on SLES 10.2) and I was wondering if anyone
> else has seen something like this.
>
> nsca seems to be dropping incoming passives in an inconsistent way,
> sometimes keeping up, other times seeming to skip 1,2, or even sometimes 3
> incoming passive checks.
>
> I’ve checked the collector, and it seems to be sending the nsca packets
> very solidly on the 5 minute normal_check_interval.
>
>
>
> These are the times that nagios logged a “PASSIVE SERVICE CHECK” for a
> typical service on a single host since last midnight:
>
>
>
> 00:03:55
>
> 00:08:56
>
> 00:13:50
>
> 00:18:51
>
> 00:28:53
>
> 00:38:55
>
> 00:43:56
>
> 00:48:50
>
> 00:53:51
>
> 00:58:52
>
> 01:08:54
>
> 01:13:55
>
> 01:18:49
>
> 01:23:50
>
> 01:38:53
>
> 01:43:54
>
> 01:48:55
>
> 01:53:49
>
> 01:58:50
>
> 02:18:54
>
> 02:23:55
>
> 02:28:49
>
> 02:33:50
>
> 02:53:47
>
> 02:58:55
>
> 03:03:56
>
> 03:08:50
>
> 03:23:46
>
> 03:28:54
>
> 03:33:55
>
> 03:38:56
>
> 03:43:50
>
> 03:48:51
>
> 03:58:46
>
> 04:03:54
>
> 04:08:55
>
> 04:13:56
>
> 04:18:50
>
> 04:38:54
>
> 04:43:55
>
> 04:48:56
>
> 04:53:50
>
> 04:58:51
>
> 05:03:52
>
> 05:13:54
>
> 05:18:55
>
> 05:23:56
>
> 05:28:50
>
> 05:48:54
>
> 05:53:55
>
> 05:58:49
>
> 06:03:50
>
> 06:23:54
>
> 06:28:48
>
> 06:33:49
>
> 06:38:50
>
> 07:03:55
>
> 07:08:49
>
> 07:13:50
>
> 07:33:54
>
> 07:38:55
>
> 07:43:56
>
> 07:48:50
>
> 08:03:46
>
> 08:08:54
>
> 08:13:55
>
> 08:18:49
>
> 08:23:50
>
> 08:33:52
>
> 08:43:54
>
> 08:48:55
>
> 08:53:56
>
> 08:58:50
>
> 09:08:45
>
> 09:18:54
>
> 09:23:55
>
> 09:28:49
>
> 09:33:50
>
> 09:38:44
>
> 09:53:54
>
> 09:58:55
>
> 10:03:49
>
> 10:08:50
>
> 10:28:54
>
> 10:33:55
>
> 10:38:49
>
> 10:43:50
>
> 11:08:55
>
> 11:13:56
>
> 11:18:50
>
> 11:33:46
>
> 11:38:54
>
> 11:43:55
>
> 11:48:56
>
> 11:53:50
>
> 12:13:54
>
> 12:18:55
>
>
>
> Andy Ford
>
> Network Security Compliance & Automation, Wells Fargo & Co.
>
> 314-600-7025
>
> andrew.ford at wachovia.com
>
>
>
>
> ------------------------------------------------------------------------------
>
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> ::: Please include Nagios version, plugin version (-v) and OS when
> reporting any issue.
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