Passive problems - solved

[Dan Rich]

Never mind, I'm an idiot.  I still had the SIG{'ALRM'} code in my script from
back when this used to be an active script.  It was causing the script to
exit.  Running a strace made the code look like it was exiting in the write to
the named pipe.

Did I mention I'm an idiot? :)

Dan Rich said:
> I am trying to monitor a system farm and want to use passive process checks to
> keep from running several hundred checks every few minutes.  However, since I
> can run one command that will give me most of the data I want to check about
> the farm, I am trying to run that command and send passive notices to Nagios.
>
> The problem is, Nagios seems to accept some of my notifications and then the
> named pipe stops taking input.  I've tried opening and closing the pipe once
> for each message, writing all the messages to a single open pipe, and now
> reopening the pipe every "n" messages, all with no success.  Here is my
> current code:
>
>    if (($cmdlines % 40) == 0) {
>     close(CMDFILE);
>     sleep 1;
>     open(CMDFILE,"> $command_file") || die "cannot open command file: $!";
>   }
>   $cmdlines++;
>   printf CMDFILE "[%d] PROCESS_SERVICE_CHECK_RESULT;%s;LSF;%d;%s\n",
>                   time, $hostname, $ERRORS{$state}, $output;
>
> It seems to work for around 140 writes if I reopen the pipe every 10, 190 if I
> reopen every 20, 230 if I reopen every 50, 240 if I reopen every 80, 290 if I
> reopen every 100, etc. and then dies.  Too add to the oddness, I don't see
> anything in my nagios.log file for these passive results, although another
> nagios instance on the same server with an almost identical configuration
> shows passive results in its log file.
>
> Since I have nearly 750 machines to monitor this is not a good thing.
>
> Does anyone know of a workaround or solution for this?
>
> --
> Dan Rich <drich at employees.org> |   http://www.employees.org/~drich/
>                                |  "Step up to red alert!"  "Are you sure, sir?
>                                |   It means changing the bulb in the sign..."
>                                |          - Red Dwarf (BBC)
>
>
>
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>


-- 
Dan Rich <drich at employees.org> |   http://www.employees.org/~drich/
                               |  "Step up to red alert!"  "Are you sure, sir?
                               |   It means changing the bulb in the sign..."
                               |          - Red Dwarf (BBC)



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::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null