debugging eventhandler via nrpe

[Assaf Flatto]

Nagios.log  show that the event handler is being executed ,and showing 
the passed parameters


from nagios.log

<HOST>;JBoss Port 
8080;CRITICAL;SOFT;1;check_nrpe_nonssl!solr-restart!CRITICAL SOFT 1!-t 200



the "-t 200" is to tell nagios to wait for the reply for 200 seconds - 
on the remote host we have a timeout of 300 , so that will allow the 
nrpe session time to work the command and then terminate .


The debug log is not showing the event handler at all , i have changed 
the logging to -1 and hopefully it will give me some more data .


Assaf


quanta wrote:

>  Check your nagios.log file. Why didn't you put the argument (-t 200) to
> the remote host, in nrpe.cfg?
>
>
> On 11/12/2010 01:21 PM, Assaf Flatto wrote:
>   
>>   Hello all
>>
>> I am trying to implement an event handler on a remote machine , and 
>> having a problem with the way the status arguments are transferred over 
>> the NRPE channel .
>>
>> My config is as such :
>>
>> define service{
>> <snip>
>>   max_check_attempts              3
>>   event_handler                   
>> check_nrpe_nonssl!solr-restart!$SERVICESTATE$ $SERVICESTATETYPE$ 
>> $SERVICEATTEMPT$!-t 200
>>
>> <snip>
>> }
>>
>> On the remote server the nrpe was compiled with --allow-command-args  
>> ,and in  the nrpe.cfg i have the following parameters ?
>>
>> dont_blame_nrpe=1
>> debug=1
>> command_timeout=300
>> # Event Handler
>> command[solr-restart]=/usr/local/nagios/libexec/eventhandlers/restart-solr.sh
>>
>>
>> the event handler script is :
>> #!/bin/bash
>> #
>> # Event handler script for restarting the web server on the local machine
>> #
>> # Note: This script will only restart the web server if the service is
>> # retried 3 times (in a "soft" state) or if the web service somehow
>> # manages to fall into a "hard" error state.
>> #
>>
>> case "$1" in
>> OK)
>>   # The service just came back up, so don't do anything...
>>   ;;
>> WARNING)
>>   ;;
>> UNKNOWN)
>>   ;;
>> CRITICAL)
>>   case "$2" in
>>   SOFT)
>>
>>   case "$3" in
>>   2)
>>   echo "Too early - not restarting yet"
>>   exit 0
>>   ;;
>>      esac
>>
>>   case "$3" in
>>   3)
>>   echo "Too early - not restarting yet"
>>   exit 0
>>   ;;
>>   esac
>>   ;;
>>   HARD)
>> cd /usr/local/nagios/libexec/eventhandlers/
>> curl -s -v -u *****:******* --request PUT -d @solr7down.xml http://LB
>> sleep 5
>> sudo /etc/init.d/jboss stop
>>
>> sleep 60
>> sudo /etc/init.d/jboss start
>> sleep 15
>> curl -s -v -u *****:****** --request PUT -d @solr7up.xml http://LB
>> sleep 3
>> echo " Event handler restarted the solr service"
>>   ;;
>>   esac
>>   ;;
>> esac
>> echo "Event handler restarted the solr service"
>> exit 0
>>
>> I can see in the syslog that the script is initiated :
>> Nov 11 18:15:44 gbc1-solr-07 nrpe[29687]: Host address is in allowed_hosts
>> Nov 11 18:15:44 gbc1-solr-07 nrpe[29687]: Handling the connection...
>> Nov 11 18:15:44 gbc1-solr-07 nrpe[29687]: Host is asking for command 
>> 'solr-restart' to be run...
>> Nov 11 18:15:44 gbc1-solr-07 nrpe[29687]: Running command: 
>> /usr/local/nagios/libexec/eventhandlers/restart-solr.sh
>> Nov 11 18:15:44 gbc1-solr-07 nrpe[29687]: Command completed with return 
>> code 0 and output:
>>
>> But the event handler is not preforming the tasks it is meant to .
>>
>>
>> when i initiate the command manually
>>
>> ~/libexec/check_nrpe -H <host> -n -c solr-restart -a " Critical HARD 3" 
>> -t 200
>> it is running fine .
>> I know it is an issue with the transfer of the arguments to the nrpe - 
>> but i am missing something to make sure they are parsed and sent properly .
>>
>> Anyone can point me to the sign in front of me i am blindingly missing ?
>>
>> Thanks
>  to /dev/null
>   


-- 
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Next year I will be doing the London to Paris bike ride to 
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