分享一個Linux下，監控MySQL主從狀態及配合企業微信機器人報警的Shell指令碼

• SLAVE_IP：為監控的主機IP
• USER：為msyql使用者
• PASSWORD：為mysql密碼
• WHEREIS_MYSQL：為mysql命令路徑
• WEBHOOK：為企業微信機器人Webhook地址
• wx()：為企業微信機器人函式
• Check_Mysql_Slave()：為監控指令碼主函式

#! /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 connect\n$TIME"
  wx "$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

最終報警效果如下：

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