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:
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|
#!/bin/bash
#author wangning
#date 2017-7-17
#qq 1198143315
#Email 1198143315@qq.com
################################## 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"
1198143315@qq.com <
/mail/mysql_master
.log
else
echo
"ip $ip the master mysql service is normal"
>
/mail/mysql_master
.log &&\
mail -s
"wangning tile"
1198143315@qq.com <
/mail/mysql_master
.log
fi
}
################### judge IO SQL status and delay time ###############################
IO_SQL_delay(){
if
[
"${status[0]}"
==
"Yes"
-a
"${status[1]}"
==
"Yes"
-a ${status[3]} -
le
60 ];
then
echo
"the master and slave replication is normal"
>
/mail/mysql_slave
.log &&\
mail -s
"wangning tile"
1198143315@qq.com <
/mail/mysql_slave
.log
else
echo
"the master and slave replication is failed"
>
/mail/mysql_slave
.log &&\
mail -s
"wangning tile"
1198143315@qq.com <
/mail/mysql_slave
.log
fi
}
################################ judge error code ##################################
judge_error_code(){
for
((i=0;i<=${
#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
|
本文转自 茁壮的小草 51CTO博客,原文链接:http://blog.51cto.com/wn2100/1948112,如需转载请自行联系原作者