mysql主从同步监控脚本,利用mysql从库中的IO和SQL进程以及延迟时间来监控主从同步是否正常，详细shell脚本如下：
#!/bin/bash
#author wangning
#date 2017-7-17
#qq 1198143315
#Email [email protected]
################################## define variable#############################
define_variable(){
ip=`ifconfig|sed -n ‘2p‘|awk -F "[: ]+" ‘{print $4}‘`
code=(1158 1159 1008 1007 1062)
status=(`mysql -uroot -p123456 -S /data/3309/mysql.sock -e "show slave status\G"|egrep "Running|Behind_Master|Last_Errno"|awk ‘{print $2}‘`)
}
############################ judge master #######################################
judge_master(){
mysql -uroot -p123456 -S /data/3306/mysql.sock -e "show databases" &>/dev/null
if [ $? -ne 0 ];then
echo "ip $ip the master mysql service is downed" >/mail/mysql_master.log && mail -s "wangning tile" [email protected] </mail/mysql_master.log
else
echo "ip $ip the master mysql service is normal" >/mail/mysql_master.log && mail -s "wangning tile" [email protected] </mail/mysql_master.log
fi
}
################### judge IO SQL status and delay time ###############################
IO_SQL_delay(){
if [ "${status[0]}" == "Yes" -a "${status[1]}" == "Yes" -a ${status[3]} -le 60 ];then
echo "the master and slave replication is normal" >/mail/mysql_slave.log && mail -s "wangning tile" [email protected] </mail/mysql_slave.log
else
echo "the master and slave replication is failed" >/mail/mysql_slave.log && mail -s "wangning tile" [email protected] </mail/mysql_slave.log
fi
}
################################ judge error code ##################################
judge_error_code(){
for ((i=0;i<=${#status[*]};i++))
do
if [ ${status[2]} -eq ${code[i]} ];then
mysql -uroot -p123456 -S /data/3309/mysql.sock -e "stop slave;set global sql_slave_skip_counter=1;start slave"
fi
done
}
main(){
while true
do
define_variable
judge_master
IO_SQL_delay
judge_error_code
sleep 180
done
}
main
时间： 2024-12-24 15:57:22