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Mysql修改datadir导致无法启动问题解决方法

程序员文章站 2022-06-01 14:20:41
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centos6.2,停止mysqld然后修改/etc/my.cnf datadir的位置,启动mysqld提示FAILED,查看日志

相关mysql视频教程推荐:《mysql教程

代码如下:

120609 11:31:31 
mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended 120609 11:35:12 mysqld_safe Starting mysqld daemon with data

centos6.2,停止mysqld然后修改/etc/my.cnf datadir的位置,,启动mysqld提示FAILED,查看日志

代码如下:

120609 11:31:31 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended120609 11:35:12 mysqld_safe Starting mysqld daemon with databases from /mnt/hgfs/mysql_data120609 11:35:13 [Warning] Can't create test file /mnt/hgfs/mysql_data/data.lower-test120609 11:35:13 [Warning] Can't create test file /mnt/hgfs/mysql_data/data.lower-test/usr/libexec/mysqld: Can't change dir to '/mnt/hgfs/mysql_data/' (Errcode: 13)120609 11:35:13 [ERROR] Aborting
 
120609 11:35:13 [Note] /usr/libexec/mysqld: Shutdown complete
120609 11:35:13 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended

新的datadir路径确实没问题,而且目录和目录下所有文件都是777权限,上层目录也有rx权限,只不过datadir和下属文件owner都是root(因为我用虚拟机挂载的windows的文件系统)。后来想到应该是selinux搞的鬼,设置为permissive模式之后正常启动mysqld。

代码如下:

[root@data selinux]# getenforce
Enforcing
[root@data selinux]# setenforce 0
[root@data selinux]# getenforce
Permissive

setenforce 1 设置SELinux 成为enforcing模式
setenforce 0 设置SELinux 成为permissive模式

彻底关闭,vi /etc/selinux/config 修改 SELINUX=disabled

代码如下:

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
#     targeted - Targeted processes are protected,
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted