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  • mySQL 增量备份方案

    1.在 /etc/my.cnf 下面设置开启bin-log

             编辑

             vim /etc/my.cnf

             [mysqld]

             binlog_format       = MIXED                 //binlog日志格式

             log_bin             =目录/mysql-bin.log    //binlog日志名

             expire_logs_days    = 7                //binlog过期清理时间

             #max_binlog_size    100m                    //binlog每个日志文件大小 最大值和默认是1个G

             binlog-do-db=game     #需要备份的数据库名,如果备份多个数据库,重复设置这个选项即可

             binlog-do-db=platform #

             #binlog-ignore-db=不需要备份的数据库,如果备份多个数据库,重复设置这个选项即可

    2.创建远程登陆数据库帐号

             grant all privileges on game.* to 'jack'@'192.168.10.56' identified by 'admin'

             grant all privileges on platform.* to 'jack'@'192.168.10.56' identified by 'admin'

    3.将服务器上的数据,导入一份进远程服务器中

             mysqldump -ujack -padmin -h192.168.10.38 > 备份数据库地址(/home/mysql/db/mysql.sql);

    4.写Linux 计划任务:

             vim /etc/crontab

    在底部加入

             0 3 * * * root sh /home/wwwroot/sh/mysqlbackup.sh #每天3点以root帐号的权限执行目录下的sh

    重启服务

             /etc/init.d/crond restart

    ---------------------------------------------------

    如果遇到了问题,请查看一下

    select super_priv,user from user where host='192.168.10.39';

    update user set super_priv='Y' where user='game1';

    #! /bin/Bash
    ##################
    # 2013-9-24      #
    # author jackluo #
    ##################
    db_user= #远程mysql用户名    
    db_pwd= #远程mysql密码
    db_host= #远程ip
    mysql_bin=/usr/local/mysql/bin/ #mysql 执行【招待】目录
    mysqlbindir=/usr/local/mysql/var/ #binlog日志存放目录
    dailyBackupDir=/root/mysql/ #存放,导入成功的日志
    binlogname="mysql-bin" #binlog日志前缀
    cd $mysqlbindir 
    fileList=`cat mysql-bin.index` 
    iCounter=0
    for file in $fileList
    do 
        iCounter=`expr $iCounter + 1 `
        echo ${file}
    done
    nextNum=0
    for file in $fileList
    do
       binLogName=`basename $file ` 
       nextNum=`expr $nextNum + 1 `
       if [[ $nextNum == $iCounter ]]; then
        echo "Skip lastest!" > /dev/null
        else
        dest=$dailyBackupDir/$binLogName
        if [[ -e $dest ]]; then #检查是否已导入过了
            echo "Skip exist $binLogName!" > /dev/null
        else
            ${mysql_bin}mysqlbinlog $binLogName|mysql -h${db_host} -u${db_user} -p${db_pwd} #写入远程数据库
            if [[ ! -d ${dailyBackupDir} ]];then
                            mkdir -p ${dailyBackupDir}
            fi
            touch ${dest} #创建日志文件
            find . -type f -ctime +6 -exec rm {} ; #删除6天后的日志文件
        fi    
       fi
    done
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  • 原文地址:https://www.cnblogs.com/jackluo/p/3351310.html
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