mysql主从关系监控，故障报警和恢复

#!/bin/sh

#check_mysql_slave status

ip=eth1  #网卡名称

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

mysql_user=root  #MySQL数据库帐号

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=/opt/slave.log   #日志文件路径，必须提早建立好

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!"   >>  /opt/s.log

#mail -s "$ip  Slave is  running!(主从关系正常，放心使用啦。)"   243652136\@qq.com  <  /opt/s.log

else

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

mail -s " Slave is  not running!(主从关系宕机啦，赶忙去修复吧。)"   243652136\@qq.com  <  $mysql_slave_logfile

$mysql_binfile -u$mysql_user -p$mysql_pass -S $mysql_sockfile -e "stop  slave;"

$mysql_binfile -u$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 "start   slave;"

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

fi