MySQL主从同步状态监控脚本及邮件通知

Posted 2022-01-06 lonuve

网络版本

#!/bin/bash

mysql_cmd="mysql -u root -pxxxxxxxxx"

errorno=(1158 1159 1008 1007 1062)

while true

do

array=($($mysql_cmd -e "show slave status\G"|egrep ‘_Running|Behind_Master|Last_SQL_Errno‘|awk ‘ print $NF ‘))

if [ "$array[0]"=="Yes" -a "$array[1]"=="Yes" -a "$array[2]"=="0" ]

then

echo "MySQL is slave is ok"

else

for ((i=0;i<$#errorno[*];i++))

do

if [ "$array[3]"="$errorno[$i]" ];then

$mysql_cmd -e "stop slave &&set global sql_slave_skip_counter=1;start slave;"

fi

done

char="MySQL slave is error"

echo "$char"

echo "$char"|mail -s "$char" [email protected]

break

fi

sleep 30

done

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精简原因：

1、root账号权限太大，新建一个query账号，相关赋权：

GRANT REPLICATION CLIENT on *.* to ‘query‘@‘%‘ ;

FLUSH PRIVILEGES

2、因我的db启用了GTID，不适用于set global sql_slave_skip_counter=1命令，故取消该步骤

3、‘_Running’过滤时会剩下Slave_SQL_Running_State，不想要，改为‘_Running’

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简化后脚本：

#!/bin/bash

mysql_cmd="mysql -uquery -pxxxxxxxxx"

while true

do

array=($($mysql_cmd -e "show slave status\G"|egrep ‘_Running:|Behind_Master|Last_SQL_Errno‘|awk ‘ print $NF ‘))

if [ "$array[0]"=="Yes" -a "$array[1]"=="Yes" -a "$array[2]"=="0" ]

then

echo "MySQL is slave is ok"

else

char="MySQL slave is error"

echo "$char"

echo "$char"|mail -s "$char" [email protected]

break

fi

sleep 30

done

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