Nagios监控mfs运行状态插件脚本

      公司架设MFS分布式存储文件系统有一段的时间了，和郑辉（QQ名称灵犀）也是一起研究和测试MFS，仔细研究各个参数、测试不同情况的灾备、测试mfs遇到故障的恢复方法，更是在中间得出一些结论并反复验证，耗时两个月MFS终于上线。目前文件体系存储了150多W的数据，上线两个多月运行比较稳定。

     但是之前决定的后期编写报警脚本的问题也是因为其他问题一拖再拖，到这时才草草写了一个脚本实现基本功能，分享出来，希望大家一起进步！

#!/bin/bash

# ===========================================================================================================

#

# MFS status check plugins for nagios

#

# Written by    : liu yunfeng

# Release       : 1.0

# Create Date   : 2010-05-18

# Description   : Nagios plugins (script) to check MFS status

#

# ===========================================================================================================

# Nagios return codes

STATE_OK=0

STATE_WARNING=1

STATE_CRITICAL=2

STATE_UNKNOWN=3

#Get Master server Process

Master(){

MFS_PID=`ps -ef | grep mfsmaster | grep ${mfspath} | awk '{print $2}'`

if [ "${MFS_PID}" = "" ];then

        echo "ERROR : mfs master does not start"

        exit $STATE_CRITICAL

else

 echo "OK : mfs master server running OK!"

 exit $STATE_OK

fi

}

#Get chunker server Process

Chunker(){

MFS_PID=`ps -ef | grep mfschunkserver | grep ${mfspath} | awk '{print $2}'`

if [ "${MFS_PID}" = "" ];then

        echo "ERROR : mfs chunkserver does not start"

        exit $STATE_CRITICAL

else

 echo "OK : mfs master chunkserver running OK!"

        exit $STATE_OK

fi

}

Disk_used(){

Disk_used=`df -h | grep ${mountpoint} |awk '{print $4}'`

if [ ${Disk_used%/%} -ge ${warningdiskused} -a ${Disk_used%/%} -lt ${criticaldiskused}  ];then

 echo "Waring :mfs disk used Rate is "${Disk_used}""

 exit $STATE_WARNING

elif [ ${Disk_used%/%} -ge ${criticaldiskused} ];then

 echo "CRITICAL :mfs disk used Rate is "${Disk_used}""

 exit $STATE_CRITICAL

elif [ "${Disk_used%/%}" = "" ];then

 echo "CRITICAL :mfs client not mount on"

 exit $STATE_CRITICAL

else

 echo "OK : MFS client mount on and disk used rate is "${Disk_used}" , Everything is OK!"

 exit $STATE_OK

fi

}

#Get metalogger server Process

Metalogger(){

MFS_PID=`ps -ef | grep mfsmetalogger | grep ${mfspath} | awk '{print $2}'`

if [ "${MFS_PID}" = "" ];then

        echo "ERROR : mfs mfsmetalogger does not start"

        exit $STATE_CRITICAL

else

        echo "OK : mfs master mfsmetalogger running OK!"

        exit $STATE_OK

fi

}

# Functions plugin usage

print_usage()

{

        echo ""

        echo " -M MFS master server  status "

 echo " -C MFS chunker server status "

 echo " -U MFS client disk used Rate "

 echo " -L MFS metalogger server status "

 echo " -h  Show this page "

        echo ""

        echo " Usage1 : check_mfs.sh -M mfsmasterpath"

 echo "    ex : check_mfs.sh -M /usr/local/mfs"

 echo " Usage2 : check_mfs.sh -C mfschunkpath"

 echo "    ex : check_mfs.sh -C /usr/local/mfs"

 echo " Usage3 : check_mfs.sh -U mountpoint warningrate criticalrate"

 echo "    ex : check_mfs.sh -U /mnt/mfs 60 80"

 echo " Usage4 : check_mfs.sh -L mfsmetaloggerpath"

 echo "    ex : check_mfs.sh -L /usr/local/mfs"

        echo "     ex : check_mfs.sh -h"

        echo ""

        exit 0

}

# Parse parameter

while [ $# -gt 0 ]

do

        case "$1" in

                -h | --help)

                        print_usage

                        exit $STATE_OK

                        ;;

  -M | --master)

   mfspath=${2:-"/usr/local/mfs"}

   Master

    ;;

  -C | --chunker)

   mfspath=${2:-"/usr/local/mfs"}

   Chunker

   ;;

  -U | --usedwarning)

   mountpoint=${2:-"/mnt/mfs"}

   warningdiskused=${3:-"75"}

   criticaldiskused=${4:-"85"}

   Disk_used

                        ;;

  -L | --metalogger)

   mfspath=${2:-"/usr/local/mfs"}

                        Metalogger

   ;;

                *)      echo "Unknown argement: $1"

                        exit $STATE_UNKNOWN

                        ;;

        esac

shift

done