MySQL自动化备份方案

1、撰写mysql自动备份脚本

mysql备份主要包括热备和冷备，在此使用热备，也就是利用mysqldump导出SQL语句的方式进行备份

#vi /etc/mysqlback.sh

#!/bin/bash

DB_name="luwenju" //需要备份的数据库

DB_USER="luwenju" //数据库用户名

DB_PASS="luwenju" //数据库密码

BIN_DIR="/usr/local/mysql/bin" //mysql的环境变量

BACK_DIR="/opt" //备份文件保存数据

DATE="`date +%Y%m%d`"

$BIN_DIR/mysqldump –opt -u$DB_USER -p$DB_PASS $DB_NAME > $BACK_DIR/luwenju_$DATE.sql

#chmod +x /etc/mysqlback.sh

测试

#/etc/mysqlback.sh

#ls /opt/

luwenju_20110626.sql

2、设置定时备份周期

本案例中设置的为每日凌晨进行备份一次，具体备份周期根据具体应用

#crontab –e

0 0 * * * /etc/mysqlback.sh

#/etc/init.d/crond restart

3、安装rsync

#tar zxvf rsync-3.0.8.tar.gz

#cd rsync-3.0.8

#./configure && make && make install

创建配置文件,加入如下内容

#vi /etc/rsync.conf

uid = nobody

gid = nobody

use chroot = no

max connections = 10

pid file = /var/run/rsyncd.pid

lock file = /var/run/rsyncd.lock

log file = /var/log/rsyncd.log

port = 873

timeout = 300

[backup]

read only = yes //只读模式

list = yes

ignore errors

comment = This is a file back

path = /opt //需要同步的目录

auth users = test //验证用户

secrets file = /etc/rsync.passwd //验证密码路径

hosts allow = 119.232.33.246 //允许连接的客户端