监控MySQL主从状态的shell脚本

分享一个Linux下，监控MySQL主从状态及配合企业微信机器人报警的Shell脚本

• SLAVE_IP：为监控的主机IP
• USER：为msyql用户
• PASSWORD：为mysql密码
• WHEREIS_MYSQL：为mysql命令路径
• WEBHOOK：为企业微信机器人Webhook地址
• wx()：为企业微信机器人函数
• Check_Mysql_Slave()：为监控脚本主函数

#! /bin/bash
#
source /etc/profile
export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

SLAVE_IP=`ip add | grep inet | grep brd | awk -F / '{print $1}' | awk -F " " '{print $2}' | awk 'NR==1'`
USER=monitor
PASSWORD=xxxxxx
TIME=`date`
WHEREIS_MYSQL=/opt/mysql/bin/mysql
WEBHOOK='https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=bb09197b-5ff6-4928-9872-xxxxxx'

wx(){
cat > $0.msg << EOF
curl '$WEBHOOK' 
 -H 'Content-Type: application/json' 
 -d '
 {
  "msgtype": "text",
  "text": {
   "content": "$1",
  }
 }'
EOF
sh $0.msg && rm -rf $0.msg
}


Check_Mysql_Slave()
{
 $WHEREIS_MYSQL -u$USER -p$PASSWORD -h$SLAVE_IP -e "select version();" >/dev/null 2>&1
 if [ $? -ne 0 ];then
  echo "Mysql is stopped $DATE" >> /data/mysql/check.log
    ERROR="ERROR:Mysql-$SLAVE_IP cannot connectn$TIME"
  wx "$ERROR"
 else
  #echo "1" >> /data/mysql/check.log
    IO_SQL_STATUS=`$WHEREIS_MYSQL -u$USER -p$PASSWORD -h$SLAVE_IP -e "show slave status G" 2>/dev/null | awk '/Slave_.*_Running:/{print $1$2}'`
    for i in $IO_SQL_STATUS;do
      THREAD_STATUS_NAME=${i%:*}
      THREAD_STATUS=${i#*:}
      if [ "$THREAD_STATUS" != "Yes" ];then
        STATUS="ERROR:Mysql-$SLAVE_IP $THREAD_STATUS_NAME status is $THREAD_STATUS!n$TIME"
    echo "$STATUS" >> /data/mysql/check.log
        wx "$STATUS"
      fi
    done
  fi
}

Check_Mysql_Slave