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https://github.com/apache/cloudstack.git
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137 lines
2.2 KiB
Bash
Executable File
137 lines
2.2 KiB
Bash
Executable File
help() {
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printf "Usage: $0
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-i nfs server ip
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-p nfs server path
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-m mount point
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-h host
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-r write/read hb log
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-t interval between read hb log\n"
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exit 1
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}
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#set -x
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NfsSvrIP=
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NfsSvrPath=
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MountPoint=
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HostIP=
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interval=
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rflag=0
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while getopts 'i:p:m:h:t:r' OPTION
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do
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case $OPTION in
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i)
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NfsSvrIP="$OPTARG"
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;;
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p)
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NfsSvrPath="$OPTARG"
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;;
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m)
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MountPoint="$OPTARG"
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;;
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h)
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HostIP="$OPTARG"
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;;
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r)
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rflag=1
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;;
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t)
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interval="$OPTARG"
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;;
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*)
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help
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;;
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esac
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done
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if [ -z "$NfsSvrIP" ]
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then
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exit 1
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fi
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#delete VMs on this mountpoint
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deleteVMs() {
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local mountPoint=$1
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vmPids=$(ps aux| grep qemu | grep $mountPoint* | awk '{print $2}' &> /dev/null)
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if [ $? -gt 0 ]
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then
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return
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fi
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if [ -z "$vmPids" ]
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then
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return
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fi
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for pid in vmPids
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do
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kill -9 $pid &> /dev/null
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done
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}
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#checking is there the same nfs server mounted under $MountPoint?
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mounts=$(cat /proc/mounts |grep nfs|grep $MountPoint)
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if [ $? -gt 0 ]
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then
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# remount it
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mount $NfsSvrIP:$NfsSvrPath $MountPoint -o sync,soft,proto=tcp,acregmin=0,acregmax=0,acdirmin=0,acdirmax=0,noac,timeo=133,retrans=10 &> /dev/null
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if [ $? -gt 0 ]
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then
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printf "Failed to remount $NfsSvrIP:$NfsSvrPath under $MountPoint"
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exit 1
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fi
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if [ "$rflag" == "0" ]
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then
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deleteVMs $MountPoint
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fi
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fi
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hbFolder=$MountPoint/KVMHA/
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hbFile=$hbFolder/hb-$HostIP
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write_hbLog() {
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#write the heart beat log
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stat $hbFile &> /dev/null
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if [ $? -gt 0 ]
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then
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# create a new one
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mkdir -p $hbFolder &> /dev/null
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touch $hbFile &> /dev/null
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if [ $? -gt 0 ]
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then
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printf "Failed to create $hbFile"
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return 2
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fi
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fi
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timestamp=$(date +%s)
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echo $timestamp > $hbFile
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return $?
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}
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check_hbLog() {
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oldTimeStamp=$(cat $hbFile)
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sleep $interval &> /dev/null
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newTimeStamp=$(cat $hbFile)
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if [ $newTimeStamp -gt $oldTimeStamp ]
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then
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return 0
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fi
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return 1
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}
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if [ "$rflag" == "1" ]
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then
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check_hbLog
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if [ $? == 0 ]
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then
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echo "=====> ALIVE <====="
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else
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echo "=====> DEAD <======"
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fi
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exit 0
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else
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write_hbLog
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exit $?
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fi
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