shell监控脚本实例—监控mysql主从复制

本节内容：
监控mysql主从复制的shell脚本。

说明：
监控脚本在 rhel5 下测试正常，其它版本的linux 系统请自行测试，需要的一些准备工作可以查看

代码：

#监控mysql 主从复制
cat chk_mysql_rep.sh
#!/bin/bash
#
#script_name:chk_mysql_rep.sh
#check mysql replication
#
#ssh root@xen "/usr/local/mysql/bin/mysql -uroot -pdongnan -e 'show slave status\g' -ss" | awk '/running:/ {print $2}'
#yes
#yes
#
#variables
ssh=/usr/bin/ssh
sh_dir=/root/sh/
crondir=${sh_dir}crontab
source ${sh_dir}config
hosts="$db_slave_hosts"
#main
#主循环遍历机器 www.jb51.net
for host in $hosts;do
log=$crondir/log/mysql_replication_error.log
key=$($ssh root@$host "/usr/local/mysql/bin/mysql -uroot -pdongnan -e 'show slave status\g' -ss" | awk '/running:/ {printf $2}')
    #无法连接的主机,跳过本次循环
    test -z "$key" && continue
    #返回结果真
    if [ "$key" == "yesyes" ];then
        #flag真,解除报警
        if [ -f "${crondir}/log/$host.mysql" ];then
            #sms
            #for mobile in $mobiles;do
                #echo "$host replication ok" | /usr/local/bin/gammu --sendsms text "$mobile" -unicode
            #done
            #mail
            for mail in $mails;do
                echo "$host replication ok" | mail -s "$host replication ok" $mail
            done
            #flag
            rm -f "${crondir}/log/$host.mysql"
        fi
    #返回结果假
    else  
check_date=$(date '+ %f %t')
        #flag假，报警
        if [ ! -f "${crondir}/log/$host.mysql" ];then
            #sms www.jb51.net
            #for mobile in $mobiles;do
                #echo "$host replication error" | /usr/local/bin/gammu --sendsms text "$mobile" -unicode
            #done
            #mail
            for mail in $mails;do
                echo "$host replication error" | mail -s "$host replication error" $mail
            done
            #flag
            echo "replication error" >"${crondir}/log/$host.mysql"
            #log
            echo "$check_date $host mysql replicaton error" >> $log
        fi
    fi
#
done
#

本文出自 “dongnan” 博客