简单介绍Ubuntu MySQL热备份安装
这里简单的介绍一下关于mysql热备份安装的方法,主要是在Ubuntu下,有需要的朋友可以参考一下。
1.安装最新的Ubuntu Server版本,并更新系统。
2.安装MySQL Server:sudo apt-get instal -server,然后设置管理员密码,去掉本地地址绑定,以便可以进行远程访问。
主:192.168.137.12
从:192.168.137.13
3.设置utf8字符集来支持中文,在主从服务器的配置文件/etc/mysql/my.cnf中加入:
代码如下 | 复制代码 |
[client] [mysqld] init_connect = 'SET NAMES utf8;' |
4.在服务器中启动备份。首先在主服务器在配置文件中添加下面的内容。其中s3(举个例子)为需要同步的。
代码如下 | 复制代码 |
[mysqld] log-bin = mysql-bin |
5.重新启动主数据库。
代码如下 | 复制代码 |
sudo service start mysql |
6.连接到主数据库,并创建你需要同步的数据库,如果已经存在可以忽略这一步。
代码如下 | 复制代码 |
mysql –u root –p create database s3; |
7.在服务器中添加一个账号(sync)用于同步数据库,并赋予从备份的权限,重要。
代码如下 | 复制代码 |
grant replication slave on *.* to 'sync'@'%' identified by '12345' |
8.记录s3数据库的日志文件名称和位置,用于从机备份开始的位置。
代码如下 | 复制代码 |
mysql> show master status; +------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------+----------+--------------+------------------+ | mysql-bin.000007 | 106 | s3 | | +------------------+----------+--------------+------------------+ |
9.修改从机的配置文件。
代码如下 | 复制代码 |
[mysqld] server-id = 2 read-only master-connect-retry = 60 replicate-do-db = s3 |
10.重新启动从机,新建数据库(s3)或者从原来的数据库恢复数据库。并执行命令:
代码如下 | 复制代码 |
change master to MASTER_HOST='192.168.137.12', MASTER_USER='sync',MASTER_PASSWORD='12345',MASTER_LOG_FILE='mysql-bin.000007',MASTER_LOG_POS=106; |
11.启动从机备份,并查看从机状态。
代码如下 | 复制代码 |
start slave; show slave statusG; Slave_IO_Running: Yes |
表示工作正常,否者出现问题。出现问题重要的解决工具是查看日志记录。
代码如下 | 复制代码 |
cat /var/log/mysql/error.log |

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