查看“Linux下MySQL主从同步监控shell脚本”的源代码

Linux下MySQL主从同步监控shell脚本 
#ps 不过我还没用过 
==1、创建脚本文件==

vi /home/crontab/check_mysql_slave.sh   #编辑，添加下面代码
<pre>
#!/bin/sh

# check_mysql_slave status

# author www.osyunwei.com

ip=eth0  #网卡名称

mysql_binfile=/usr/local/mysql/bin/mysql

mysql_user=root  #MySQL数据库账号

mysql_pass=123456  #密码

mysql_sockfile=/tmp/mysql.sock

datetime=`date +"%Y-%m-%d/%H:%M:%S"`   #获取当前时间

mysql_slave_logfile=/home/logs/check_mysql_slave.log   #日志文件路径，必须提前创建好

slave_ip=`ifconfig $ip|grep "inet addr" | awk -F[:" "]+ '{print $4}'`

status=$($mysql_binfile -u$mysql_user -p$mysql_pass -S $mysql_sockfile -e "show slave status\G" | grep -i "running")

Slave_IO_Running=`echo $status | grep Slave_IO_Running | awk ' {print $2}'`

Slave_SQL_Running=`echo $status | grep Slave_SQL_Running | awk '{print $2}'`

if [ "$Slave_IO_Running" = "Yes" -a "$Slave_SQL_Running" = "Yes" ]

then echo "Slave is Running!"

else

echo " $datetime $slave_ip Slave is not running!" >> $mysql_slave_logfile

$mysql_binfile -u$mysql_user -p$mysql_pass -S $mysql_sockfile -e "SLAVE STOP;"

$mysql_binfile -u$mysql_user -p$mysql_pass -S $mysql_sockfile -e "SET GLOBAL SQL_SLAVE_SKIP_COUNTER=1;"

$mysql_binfile -u$mysql_user -p$mysql_pass -S $mysql_sockfile -e "SLAVE START;"

$mysql_binfile -u$mysql_user -p$mysql_pass -S $mysql_sockfile -e "EXIT"

fi</pre>


chmod +x /home/crontab/check_mysql_slave.sh  #添加脚本执行权限

==2、添加任务计划，修改/etc/crontab==


crontab -e  #在最后一行添加

*/10 * * * * root /home/crontab/check_mysql_slave.sh  #表示每10分钟执行一次



==3、重新启动crond使设置生效==

/etc/rc.d/init.d/crond restart   #yum install -y vixie-cron安装计划任务，某些系统上可能没有预装

chkconfig crond on #设为开机启动

service crond start #启动

可以根据日志文件/home/logs/check_mysql_slave.log查看MySQL主从同步状态

参考 
http://www.osyunwei.com/archives/7240.html

[[category:mysql]]