Nagios Support Forum

Posted: **Fri Jul 15, 2011 9:17 am**

Hi,

I am developing an EventHandler to restart apache tomcat.

I have a shell script on the host tomcat is run from, that restarts tomcat. This script functions perfectly when executed by the nagios user on this host.

Code: Select all

#!/bin/bash
# /usr/local/nagios/libexec/eventhandlers/restart_tomcat1
#
# SCRIPT TO RESTART TOMCAT CALLED BY NRPE if check_http returns 2 soft Critical Results

/usr/bin/sudo /etc/init.d/tomcat1 stop
logger "TOMCAT1 - AUTO RESTART ATTEMPTED - STOP"

sleep 15
logger "TOMCAT1 - AUTO RESTART ATTEMPTED - WAIT 15sec"

/usr/bin/sudo /etc/init.d/tomcat1 start
logger "TOMCAT1 - AUTO RESTART ATTEMPTED - START"

echo "RESTART ATTEMPT FINISHED"

exit 0

The Logger statements print to /var/log/messages and the tomcat instance successfully restarts.

HOWEVER if I execute the command via NRPE from my nagios server... It Fails.

The script executes and the Logger statments are printed, but nothing happens to the tomcat instance.

My Config is:

I have NRPE configured to accept the command: restartTomcat1

Code: Select all

command[restartTomcat1]=/usr/local/nagios/libexec/eventhandlers/restart_tomcat1

and the nrpe deamon is started and run as user nagios (/etc/xinetd.d/nrpe

Code: Select all

# default: on
# description: NRPE (Nagios Remote Plugin Executor)
service nrpe
{
        flags           = REUSE
        socket_type     = stream
        port            = 5666
        wait            = no
        user            = nagios
        group           = nagios
        server          = /usr/local/nagios/bin/nrpe
        server_args     = -c /usr/local/nagios/etc/nrpe.cfg --inetd
        log_on_failure  += USERID
        disable         = no
        only_from       = 127.0.0.1 NAGIOSHOST
}

However when I execute the command

Code: Select all

/usr/local/nagios/libexec/check_nrpe -H MyHOSTAddress -c restartTomcat1 -t 55

I get the logger statements but the TOMCAT Commands to stop and start appear to not execute.

I have added the nagios user to the sudoers file

Code: Select all

nagios ALL=(ALL) NOPASSWD:ALL

Can anyone help me?

Nagios Support Forum

Event Handler with NRPE - Restart Service Not Working

Event Handler with NRPE - Restart Service Not Working