本地两个mysql数据库同步_本地MySQL迁移到RDSforMySQL

使用mysqldump备份本地数据库,然后通过AWS Data Pipeline或自定义脚本将数据导入到RDS for MySQL中。

本地两个MySQL数据库同步和本地MySQL迁移到RDS for MySQL是两个不同的问题,我将分别为您详细介绍。

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本地两个MySQL数据库同步

1、使用主从复制实现同步

主从复制是MySQL中最常见的同步方式,通过在主库上记录数据变更并传输到从库,从而实现数据的同步。

步骤如下:

配置主库:编辑主库的my.cnf文件,添加以下内容:

[mysqld]
serverid=1
logbin=mysqlbin
binlogdodb=需要同步的数据库名

重启MySQL服务。

创建用于同步的用户并授权:

CREATE USER '同步用户'@'%' IDENTIFIED BY '密码';
GRANT REPLICATION SLAVE ON *.* TO '同步用户'@'%';

获取主库的二进制日志文件名和位置:

SHOW MASTER STATUS;

记下File和Position的值。

配置从库:编辑从库的my.cnf文件,添加以下内容:

[mysqld]
serverid=2
relaylog=relaybin

重启MySQL服务。

在从库上执行以下命令,配置从库连接主库:

CHANGE MASTER TO MASTER_HOST='主库IP', MASTER_USER='同步用户', MASTER_PASSWORD='密码', MASTER_LOG_FILE='主库上获取的文件名', MASTER_LOG_POS=主库上获取的位置;

启动从库的同步进程:

START SLAVE;

查看从库同步状态:

SHOW SLAVE STATUSG;

如果Slave_IO_RunningSlave_SQL_Running的值都是Yes,则表示同步成功。

2、使用第三方工具实现同步(如Percona XtraBackup)

Percona XtraBackup是一个免费的开源备份工具,支持InnoDB和XtraDB引擎的热备份,可以用于实现MySQL数据库的同步。

步骤如下:

安装Percona XtraBackup,以Ubuntu为例:

sudo aptget install perconaxtrabackup24

备份主库:执行以下命令,将备份文件保存到指定目录:

pxb backup targetdir=/备份目录 /var/lib/mysql/数据库名 > backup.log 2>&1 &

恢复备份到从库:执行以下命令,将备份文件恢复到从库的数据目录下:

rm rf /从库数据目录/* && xbstream restore innodbonly parallel=4 targetdir=/从库数据目录 /备份目录/backup.xtrabackup >> restore.log 2>&1 & pkill HUP xbstream || true; echo "Restore completed" | mail s "Restore completed" youremail@example.com && sleep 5 && tail f restore.log || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore failed" youremail@example.com && exit 1; exit 0; pkill 9 xbstream || true; echo "Restore failed" | mail s "Restore失败

本文标题:本地两个mysql数据库同步_本地MySQL迁移到RDSforMySQL
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