MySQL5.5源码安装报错"[ERROR] Can't start serv

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MySQL 5.5 集群启动SQL节点时报错，错误日志中的信息如下：

2016-05-15 02:00:11 42008 [ERROR] Can't start server : Bind on unix socket: Permission denied
2016-05-15 02:00:11 42008 [ERROR] Do you already have another mysqld server running on socket: /cluster_data/mysql.sock ?
2016-05-15 02:00:11 42008 [ERROR] Aborting

报错原因：
文件权限没有设置成mysql所属

解决方法：
[root@localhost /]# chown -R mysql.mysql cluster_data/