Rolandow: Nieuwe pagina aangemaakt met '= Goal = Check if a proces is running, on a remote host. This is done by checking a given command against a given PID (or pidfile). Actually it just checks if /proc/<…'

2012-06-01T12:11:21Z

Nieuwe pagina aangemaakt met '= Goal = Check if a proces is running, on a remote host. This is done by checking a given command against a given PID (or pidfile). Actually it just checks if /proc/<…'

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= Goal =

Check if a proces is running, on a remote host. This is done by checking a given command against a given PID (or pidfile). Actually it just checks if /proc/<pid>/cmdline has the command that you check with.

= Bash script =

Script /var/lib/nagios/plugins/check_proc_running

The include of utils.sh makes sure we have the $STATE_OK variables.

<source lang="bash">
#! /bin/bash
#
# Check if specified process is running at specified PID
#
# Usage: ./check_proc_running -P <pid> -PF <pidfile> -C <script> -x [exitstatus]
#
# Example:
# ./check_proc_running -P 16802 -C /home/soapserver/productDaemon.php
#
# or:
# ./check_proc_running -PF /var/run/stumpel/productDaemon.pid -C /home/soapserver/productDaemon.php
#
# Return alternative status when running process is found, for example
# state critical:
#
# ./check_proc_running -P 16801 -C /home/soapserver/productDaemon.php -x 2
#
# Default state is OK when process is running on PID.
#
PROGNAME=`/usr/bin/basename $0`
PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'`
REVISION="1.0.0"

. $PROGPATH/utils.sh

print_usage() {
echo "Usage: $PROGNAME -P pid -C command"
echo "Usage: $PROGNAME --help"
echo "Usage: $PROGNAME --version"
}

print_help() {
print_revision $PROGNAME $REVISION
echo ""
print_usage
echo ""
echo "Running process checker"
echo ""
support
}

# Make sure the correct number of command line
# arguments have been supplied

if [ $# -lt 4 ]; then
print_usage
exit $STATE_UNKNOWN
fi

# Grab the command line arguments

exitstatus=$STATE_OK #default
verbosity=0
while test -n "$1"; do
case "$1" in
--help)
print_help
exit $STATE_OK
;;
-h)
print_help
exit $STATE_OK
;;
--version)
print_revision $PROGNAME $REVISION

exit $STATE_OK
;;
-V)
print_revision $PROGNAME $REVISION
exit $STATE_OK
;;
--pid)
checkpid=$2
shift
;;
-P)
checkpid=$2
shift
;;
--pidfile)
pidfile=$2
shift
;;
-PF)
pidfile=$2
shift
;;
--command)
checkcommand=$2
shift
;;
-C)
checkcommand=$2
shift
;;
-x)
exitstatus=$2
shift
;;
--exitstatus)
exitstatus=$2
shift
;;
-v)
verbosity=$2
shift
;;
*)
echo "Unknown argument: $1"
print_usage
exit $STATE_UNKNOWN
;;
esac
shift
done

f_VERB() {
if [ "$verbosity" -ge 3 ]; then
echo $@
fi
}

if [ -n $pidfile ]; then
f_VERB "Loading pidfile $pidfile"
if [ ! -e $pidfile ]; then
echo "Error: file $pidfile does not exist\n"
exit $STATE_UNKNOWN
fi

checkpid=`cat $pidfile`
fi

f_VERB "Checking $checkpid for command $checkcommand"

# if pid not set, exit
if [ -z $checkpid ]; then
echo "Error: PID not given\n"
exit $STATE_UNKNOWN
fi

# if command not set, exit
if [ -z $checkcommand ]; then
echo "Error: command to check not set"
exit $STATE_UNKNOWN
fi

f_VERB "grep '$checkcommand' /proc/$checkpid/cmdline | wc -l"

is_running=`cat /proc/$checkpid/cmdline | grep $checkcommand | wc -l`
if [ "$is_running" -ge "1" ]; then
echo "$checkcommand is running\n"
exit $exitstatus
fi

echo "$checkcommand is NOT running\n"
if [ "$exitstatus" -eq "0" ]; then
exit $STATE_CRITICAL
fi

exit $STATE_OK
</source>

= nrpe_local.cfg =

On the host that runs the processes that need to be checked, the nrpe_local.cfg needs to be configured.

<pre>
command[check_stumpel_daemon]=/usr/lib/nagios/plugins/check_proc_running -PF /var/run/stumpel/$ARG1$.pid -C /home/soapserver/htdocs/$ARG1$.php
</pre>

= services.conf =

On the monitoring host a service should be defined. For example:

<pre>
define service {
use generic-service
host_name soap.stumpel.nl
service_description shippingDaemon
check_command check_nrpe_alt!check_stumpel_daemon!shippingDaemon
}
</pre>

Note that check_nrpe_alt is being used here to connect to a different port.

Linux Nagios Running Proces - Bewerkingsoverzicht

Rolandow: Nieuwe pagina aangemaakt met '= Goal = Check if a proces is running, on a remote host. This is done by checking a given command against a given PID (or pidfile). Actually it just checks if /proc/<…'