shell编写的zk、hadoop、hbase服务监控并重启服务

#!/bin/bash
#zk服务器问题修复脚本
#zkServer服务所在路径
zkDir="/usr/local/zookeeper/bin/"
zkLog='zookeeper.out'
#进入zkServer.sh所在的目录
cd $zkDir
flag=1
#当$flag=0时才停止循环设置无线循环
until [ $flag -eq 0 ]
do
  #查看zookeeper.out日志是否有错误信息
  while tail -f $zkLog | grep "ERROR"
  do
     #查看QuorumPeerMain服务是否启动
     for pid in `jps | grep "QuorumPeerMain"`
     do  
       #如果启动pid不为空且pid不为零
       if [ -n "$pid" ] && [ "$pid" != "QuorumPeerMain" ]
       then
         #关闭该进程
         kill -9 $pid
         #记录重启时间
         date >>$zkDir/reStartDate.txt
          #关闭zkServer
         ./zkServer.sh stop
         #运行zkServer.sh命令启动zk服务
        if ./zkServer.sh start | grep "STARTED"
        then
          #查看服务状态
          if ./zkServer.sh status | grep "Mode"
          then 
            if jps | grep "QuorumPeerMain"
            then
              echo "restart Succeed！" >>$zkDir/reStartDate.txt
            fi
          fi
        fi
      fi                                 
     done
  done
done

改进版：

#!/usr/bin/env bash
#hadoop的sbin路径
Hadoop=/usr/local/hadoop/sbin
#hbase的bin路径
Hbase=/usr/local/hbase/bin
#zookeeper的bin路径
Zk=/usr/local/zookeeper/bin

cd $Hadoop
#关闭history与proxy服务
StopHistory=`./mr-jobhistory-daemon.sh stop historyserver`
StopProxy=`./yarn-daemon.sh stop proxyserver`

#启动history与proxy服务
StartHistory=`./mr-jobhistory-daemon.sh start historyserver`
StartProxy=`./yarn-daemon.sh start proxyserver`
if [ -n "$StartHistory" ]  &&  [ -n "$StartProxy" ]
then
  echo "historyserver and proxyserver restart Succeed!"
fi

cd $Hbase
#关闭hbase服务
StopHbase=`./stop-hbase.sh`

#启动hbase服务
StartHbase=`./start-hbase.sh`
if [ -n "$StartHbase" ]
then
  echo "hbase restart Succeed！" 
fi

#关闭服务并重启
cd $Zk
#关闭zk服务
stopZK=`./zkServer.sh stop`
startZK=`./zkServer.sh start`
statusZK=`./zkServer.sh status`
echo $stopZK > /dev/null
if echo $startZK | grep "STARTED"
then
  if echo $status | grep "Mode"
  then
    if jps | grep "QuorumPeerMain"
    then
      echo "zk server start Succeed!"
    fi
  else
    for pid in `jps | grep "QuorumPeerMain"`  
      do    
        #如果启动pid不为空且pid不为零  
        if [ -n "$pid" ] && [ "$pid" != "QuorumPeerMain" ]  
        then  
          #关闭该进程  
          kill -9 $pid   
          #关闭zkServer  
          stopZK=`./zkServer.sh stop`
          echo $stopZK >/dev/null
          #运行zkServer.sh命令启动zk服务
          startZk=`./zkServer.sh start`
          if echo $startZk  | grep "STARTED"  
          then  
            #查看服务状态
            statusZK=`./zkServer.sh status`
            if echo $
              statusZK | grep "Mode"  
            then
              QuoPM=`jps | grep "QuorumPeerMain"`
              if [ -n "$QuoPM" ]
              then  
                echo "zookeeper restart Succeed!"
              fi  
            fi  
          fi 
        fi
    done  
  fi
fi

然后执行：corntab -e

在文件中添加：30 2 * * * /usr/local/Reboot >>/usr/local/reboot/log

上面意思是：每天的2:30跑脚本，重新启动zk、hadoop、hbase服务