[Nagiosplug-devel] plugin help

[Lawrence, Lynne]

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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