NSCLIENT - Connection refused under load?
Sand Philipp
Philipp.Sand at sycor.de
Wed Sep 1 10:07:52 CEST 2004
First of all you should think about updating to a newer version of
NSClient and maybe a newer version of Nagios :)
I don't know of your Version of NSClient got check_nt option "-t" with
that you can define a timeout for the service check. So when there are a
lot of service checks they will last longer, when you increase the time
before they time out, this may help...
> -----Original Message-----
> From: nagios-users-admin at lists.sourceforge.net
> [mailto:nagios-users-admin at lists.sourceforge.net] On Behalf
> Of sphillips at netstarnetworks.com
> Sent: Wednesday, September 01, 2004 9:42 AM
> To: nagios-users at lists.sourceforge.net
> Subject: [Nagios-users] NSCLIENT - Connection refused under load?
>
>
> All,
>
> I am having a few issues with NSCLIENT and Nagios, perhaps
> some helpful person can be of assistance :-)
>
> Currently we're trialling a service for a client in which we
> want to monitor approximately 50 different items from Windows
> using NSCLIENT. These include service up/down, and perfmon
> stats as well as the usual disk usage, CPU load and so on.
>
> When we increase the number of checks on NSCLIENT above
> approxmiately 15 or so, we start receiving "Connection
> refused by host" from check_nt on the Windows box(es) we're
> trying to monitor. These connection refused messages seem to
> happen fairly randomly. We also receive what appear to be
> false 'zero' responses for some counters sometimes (e.g. on a
> busy webserver, "0.000 hits/minute" or some such).
>
> Neither the monitoring server nor the server being monitored
> are under significant CPU or I/O load. The version of Nagios
> is 1.1 and the version of NSCLIENT is 1.0.7.1.
>
> Can anyone help?
>
>
> Thanks,
>
> regards,
>
> Simon.
>
> --
> Simon Phillips
> Technical Consultant
> Research & Development Team
> NetStar Australia Pty Ltd
>
> Phone: +61 2 9805 9805 (Switch) Phone: +61 2 9805 9853 (Direct)
> Email: sphillips at netstarnetworks.com
>
> NetStar provides solutions for voice, data and security networks.
> NetStar Australia is a Quality Endorsed Company to ISO 9001/2000
> Visit us at http://www.netstarnetworks.com
>
>
>
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