启动Mysql时发生的一个关于PID文件错误问题

[root@host1 /]# service mysql start
Starting MySQL.. ERROR! The server quit without updating PID file (/var/lib/mysql/host1.pid).

[root@host1 /]# cat /var/log/mysqld.err | less
2015-07-26 11:09:55 3463 [ERROR] MYSQL_BIN_LOG::open_purge_index_file failed to open register  file.
2015-07-26 11:09:55 3463 [ERROR] MYSQL_BIN_LOG::open_index_file failed to sync the index file.
2015-07-26 11:09:55 3463 [ERROR] Aborting

[root@host1 /]# chown -R mysql:mysql /var/lib/mysql/

[root@host1 /]# service mysql start
Starting MySQL.. SUCCESS!