修改mysql数据存储的地址
修改步骤如下
1,修改前为默认路径/var/lib/mysql/，计划修改为/data/mysql/data
mysql> show variables like '%dir%';+-----------------------------------------+----------------------------+| variable_name | value |+-----------------------------------------+----------------------------+| basedir | /usr || binlog_direct_non_transactional_updates | off || character_sets_dir | /usr/share/mysql/charsets/ || datadir | /var/lib/mysql/ || innodb_data_home_dir | || innodb_log_group_home_dir | ./ || innodb_max_dirty_pages_pct | 75 || lc_messages_dir | /usr/share/mysql/ || plugin_dir | /usr/lib64/mysql/plugin/ || slave_load_tmpdir | /tmp || tmpdir | /tmp |+-----------------------------------------+----------------------------+11 rows in set (0.00 sec)
2，关闭mysql服务
service mysql stop
3，新建目录，修改权限并cp相关文件到目标目录
新的数据存储路径为/data/mysql/datamkdir -p /data/mysql/data更改新路径权限宿主chown mysql:mysql /data/mysql/data将原数据全部拷贝到新路径cp -a /var/lib/mysql/* /data/mysql/data/
4,修改配置文件
[root@stmysql1 lib]# vi /etc/rc.d/init.d/mysqlbasedir=datadir=/data/mysql/data
5，启动mysql
service mysql start
6，修改后的地址如下，已修改成功
-bash-3.2$ mysqlwelcome to the mysql monitor. commands end with ; or /g.your mysql connection id is 1server version: 5.5.33 mysql community server (gpl)copyright (c) 2000, 2013, oracle and/or its affiliates. all rights reserved.oracle is a registered trademark of oracle corporation and/or itsaffiliates. other names may be trademarks of their respectiveowners.type 'help;' or '/h' for help. type '/c' to clear the current input statement.mysql> show variables like '%dir%';+-----------------------------------------+----------------------------+| variable_name | value |+-----------------------------------------+----------------------------+| basedir | /usr || binlog_direct_non_transactional_updates | off || character_sets_dir | /usr/share/mysql/charsets/ || datadir | /data/mysql/data/ || innodb_data_home_dir | || innodb_log_group_home_dir | ./ || innodb_max_dirty_pages_pct | 75 || lc_messages_dir | /usr/share/mysql/ || plugin_dir | /usr/lib64/mysql/plugin/ || slave_load_tmpdir | /tmp || tmpdir | /tmp |+-----------------------------------------+----------------------------+11 rows in set (0.00 sec)
bitscn.com