mysql-bin权限问题导致mysql无法启动

今天启动mysql报错误,查看/var/lib/mysql/mydb.err有如下的信息
131227 14:24:01 mysqld_safe mysqld from pid file /var/lib/mysql/richinfo-dev2.pid ended
131227 14:24:51 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
131227 14:24:51 [Warning] Changed limits: max_open_files: 1024  max_connections: 886  table_cache: 64
131227 14:24:51 [Note] Plugin 'FEDERATED' is disabled.
131227 14:24:51  InnoDB: Initializing buffer pool, size = 256.0M
131227 14:24:52  InnoDB: Completed initialization of buffer pool
131227 14:24:52  InnoDB: Started; log sequence number 0 1724594339
/usr/sbin/mysqld: File './mysql-bin.000002' not found (Errcode: 13)
131227 14:24:52 [ERROR] Failed to open log (file './mysql-bin.000002', errno 13)
131227 14:24:52 [ERROR] Could not open log file
131227 14:24:52 [ERROR] Can't init tc log
131227 14:24:52 [ERROR] Aborting

错误提示找不到mysql-bin.000002文件,但检查该文件是存在的.
[root@host1 mysql]# ls  mysql-bin.000002
mysql-bin.000002
难道是权限问题,再次检查
[root@host1 mysql]# ls -al mysql-bin.000002
-rw-rw---- 1 root root 733525 12-27 14:10 mysql-bin.000002
发现文件属主变成了root,将该文件修改为mysql,问题解决.

chown -R mysql:mysql mysql-bin.000002

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