check_cluster

#!/bin/bash
# Script to check if RedHat cluster has failed over
# Felipe Ferreira Jan 2013
# ver 1.0

if [ ! $# == 1 ]; then
echo "Usage check_cluster <cluster_service_name>"
exit 2
fi;

clu_srv=$1
service1=`/usr/sbin/clustat|grep $clu_srv| awk {'print $1'}`
service=`/usr/sbin/clustat|grep started|grep -c $clu_srv`
if [ $service -eq 0 ]; then
 echo "CRITICAL - Service $clu_srv not running"
 exit 2
fi

host1=`/usr/sbin/clustat|grep $1| awk {'print $2'}`
tmpfile=".tmp_check_cluster_${clu_srv}.log"
tmpfile2=".tmp_check_cluster2_${clu_srv}.log"

echo $service1 $host1 > $tmpfile2

if [ -f  $tmpfile ] && [ -f  $tmpfile2 ]; then
 DIFF=`diff $tmpfile $tmpfile2`
else
 echo "UNKOWN - This is the first run"
 touch $tmpfile
 touch $tmpfile2
 echo $tmpfile
 echo $tmpfile2
 exit 3
fi

#limpa output
DIFF=`echo $DIFF |cut -d ">" -f2`
host1=`echo $host1 |cut -d "-" -f1`
service1=`echo $service1 |cut -d":" -f2`

mv $tmpfile2 $tmpfile
if [ ! -z "${DIFF}" ]; then
 echo "CRITICAL - Cluster $clu_srv did failover to $host1"
 exit 2
else
 echo "OK - Cluster $clu_srv still on the same server $host1"
 exit 0
fi