David, Thank you for pointing me in the right direction. I ran strace on both and the telling item was
shutdown(3, 1 /* send */) = -1 ENOTCONN (Transport endpoint is not connected) on akagi. As it turns out, restarting the client (again) fixed the problem. Thanks for reminding me about strace...Being a sysadmin and not a programmer, I forget about this tool. :) --b On Fri, Aug 26, 2011 at 10:03 PM, David Parker <dpar...@utica.edu> wrote: > ----- Original Message ----- > From: Brad Alexander <stor...@gmail.com> > Date: Friday, August 26, 2011 8:13 pm > Subject: [Spam: 5.2] Re: [OT] Nagios question > To: David Parker <dpar...@utica.edu> > > > On Fri, Aug 26, 2011 at 6:41 PM, David Parker <dpar...@utica.edu> wrote: > >> > ----- Original Message ----- >> > From: Brad Alexander <stor...@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 >
