Re: [OT] Nagios question

> On Fri, Aug 26, 2011 at 6:41 PM, David Parker <dparker@utica.edu> wrote:

> ----- Original Message -----
> From: Brad Alexander <storm16@gmail.com>
> Date: Friday, August 26, 2011 6:07 pm
> Subject: [OT] Nagios question
> To: Debian-user List <debian-user@lists.debian.org>

> > There is a nagios plugin called check_ubc, which checks for increasing /proc/user_beancounters. This is an indication of a spec that needs to be tuned for the vm. In any case, I can run the check_ubc from the command line on both machines, but on the original server, hornet, when I run it from nrpe on the nagios server:

> > # /usr/local/nagios/libexec/check_nrpe -H hornet -c check_ubc
> > OK.

> > On the new server, built two days ago, same configuration, I get

> > # /usr/local/nagios/libexec/check_nrpe -H akagi -c check_ubc
> > NRPE: Command 'check_ubc' not defined

> > I have the check_ubc script in /usr/local/nagios/libexec/nrpe_local on both, the command is defined in/usr/local/nagios/etc/nrpe_local/override.cfg with an include in /usr/local/nagios/etc/nrpe.cfg. Everything is the same on both servers. Why does the command work on one but not the other?

> Just to clarify, the configs are *exactly* the same? Are these two machines different architectures (32-bit vs. 64-bit, etc.)?

> Nope. Both are Dell PE 1850s with dual 3.2GHz Xeons. The only differing factor is that one has 2GB of RAM and the other has 6GB.

That's really strange. This may seem obvious, but are the permissions on the config file correct, and is it readable by the user who is running this command? Also, is the Nagios version the same on the two boxes?

Does strace show anything? Try:

strace -o strace.out /usr/local/nagios/libexec/check_nrpe -H akagi -c check_ubc

Then check strace.out and see if it shows anything along the lines of permissions errors, parsing errors, etc.

- Dave