[Nagiosplug-devel] plugin help
Aditya Ivaturi
aivaturi2 at unlnotes.unl.edu
Fri Sep 9 06:50:24 CEST 2005
Well the if condition is not the problem I think, because when I execute
it on command line I get exactly the result I was expecting. For e.g. this
is one of the outputs:
OK: 12 Users Online | UsersOnline=12;0;0;
Where in fact there were only 12 users users using that system at that
point. As far as permissions are concerned, I checked them and they all
seem to be fine - owned by nagios and 755.
--Turi
Lynne.G.Lawrence at uscg.mil wrote on 09/09/2005 08:35:36 AM:
> Perhaps your initial if statement is failing? I suggest that you
> add an else{} clause to the initial if{} regex match; put out some
> message and exit $ERRORS{UNKNOWN} for no match. Other than that,
> maybe check the file permissions to ensure that it is executable by
> the nagios user.
>
> Hope this helps,
>
> Lynne Lawrence
> QSS/USCG
>
> From: nagiosplug-devel-admin at lists.sourceforge.net [mailto:
> nagiosplug-devel-admin at lists.sourceforge.net] On Behalf Of Aditya
Ivaturi
> Sent: Thursday, September 08, 2005 5:08 PM
> To: nagiosplug-devel at lists.sourceforge.net
> Subject: [Nagiosplug-devel] plugin help
>
> This is the first time I am trying to write a plugin for Nagios. So
> please bear with me. We have an online testing system and I am
> writing a plugin to check how many users are actually taking a test.
> It is a module that is in built in the system and exported via http.
> So all I do is call that page and dump the number out. Nothing
> complicated. The code-block (perl) which dumps out is as follows:
>
>
> if ($content =~ m/<TD>Student Cache<\/TD><TD>(\d*)<\/TD>/) {
> if ($1>$critical) {
> if ($verbose) {
> print "CRITICAL: $1 Users Online > $critical Critical
> Status \t Critical ErrorLev 2 | UsersOnline=$1;0;0;\n";
> }
> else {
> print "CRITICAL: $1 Users Online | UsersOnline=$1;0;0;\n";
> }
> exit $ERRORS{'CRITICAL'};
> }
> elsif ($1>$warning) {
> if ($verbose) {
> print "WARNING: $1 # Users Online > $warning Warning
> Status \t Critical ErrorLev 1 | UsersOnline=$1;0;0;\n";
> }
> else {
> print "WARNING: $1 Users Online | UsersOnline=$1;0;0;\n";};
> exit $ERRORS{'WARNING'};
> }
> else {
> if ($verbose) {
> print "OK: $1 Users Online - Status normal \t Normal
> ErrorLev 0 | UsersOnline=$1;0;0;\n";
> }
> else {
> print "OK: $1 Users Online | UsersOnline=$1;0;0;\n";
> }
> exit $ERRORS{'OK'};
> }
> }
>
>
> For e.g the output will look like:
>
> OK: 12 Users Online | UsersOnline=12;0;0;
>
> where -w is 150 and -c is 200. But nagios complains by saying "NRPE:
> Unable to read output". Is the format of the output wrong or am I
> missing any steps?
>
> --Turi
>
>
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