Plugin help

[Arno Lehmann]

Hi,

Lunt, Nick wrote:

> Hello list,
> 
> first off I know there's a seperate list for plugins but I think this question should be OK for this list :)
> 
> I have created a bash script that checks if Oracle is running on server x, I cannot used the supplied check_oracle plugin because I do not have Oracle installed on the Nagios machine.
> 
> My problem is that even if I deliberately make the script fail it will still show as OK in Nagios. And the status information shows 'no output returned from plugin'.
> 
> If the script fails I have it exiting with status code 2, and it exits with a 0 if the script works.
> 
> The script is below if that will help. Could someone please tell me how to get user created plugins to give the correct info back to nagios ? I cannot find this in the nagios docs, nor on google. If someone knows where this info is then a link would be appreciated. Or just tell me to RTFM - but please supply a specific M :)

Well, the script looks basically ok in hat it should always exit with 
status 0 or 2 and some output. Unless it is aborted earlier, which I 
wouldn't know.

Two hints / question?
- Multiple nagios instances running? top, ps or pstree might tell you.
- can you run the script as the nagios user in the shell and does it 
work correctly? And look at the result code!
For example
su - nagios
/usr/local/nagios/libexec/check_your_script; echo $?


Arno

> Many thanks
> Nick.
> 
> // The script:
> 
> #!/bin/bash
> 
> USERNAME=someuser
> PASSWORD=password
> HOSTNAME=bishop1
> PORT=1552
> DB=TEC
> 
> RES=0
> 
> SQL=/usr/local/instantclient/sqlplus
> SQLOUT=/tmp/instantoracle.${DB}.out
> SQLFILE=/tmp/instantoracle.${DB}.sql
> SQLCOMMAND="select count(*) from tec_t_evt_rep;"
> 
> cat > $SQLFILE << EOF
> spool $SQLOUT;
> $SQLCOMMAND
> exit;
> EOF
> 
> cat $SQLFILE | $SQL ${USERNAME}/${PASSWORD}@//${HOSTNAME}:${PORT}/${DB}
> 
> RES=$?
> if [ $RES -ne 0 ]; then
> 	EPOCHTIME=`python -c "import time; print str(time.time()).split('.')[0]"`
> 	echo "CRITICAL - $EPOCHTIME $HOSTNAME.$DB Down"
> 	RES=2
> else
> 	EPOCHTIME=`python -c "import time; print str(time.time()).split('.')[0]"`
> 	echo "OK - $EPOCHTIME from $HOSTNAME.$DB"
> 	RES=0
> fi
> 
> exit $RES
> 
> // End of script
> 
> 
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-- 
IT-Service Lehmann                    al at its-lehmann.de
Arno Lehmann                  http://www.its-lehmann.de


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from IBM. Find simple to follow Roadmaps, straightforward articles,
informative Webcasts and more! Get everything you need to get up to
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_______________________________________________
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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