mysql启动时报报如下错

/mysql51/share/mysql/mysql.server start --user=root

Warning: World-writable config file '/usr/local/mysql51/my.cnf' is ignored

Warning: World-writable config file '/usr/local/mysql51/my.cnf' is ignored

Starting MySQL.                                            [  OK  ]

原因是my.cnf权限设置的太大，mysql忽略了my.cnf配置文件，采取的默认参数启动的

chmod 644 my.cnf

这种情况下如果启动过mysql

mysql的err日志存在如下错误日志

/usr/local/mysql51/libexec/mysqld: File './mysql-bin.000002' not found (Errcode: 13)

140619 15:08:55 [ERROR] Failed to open log (file './mysql-bin.000002', errno 13)

140619 15:08:55 [ERROR] Could not open log file

140619 15:08:55 [ERROR] Can't init tc log

140619 15:08:55 [ERROR] Aborting

140619 15:08:55  InnoDB: Starting shutdown...

140619 15:09:00  InnoDB: Shutdown completed; log sequence number 0 1176387

140619 15:09:00 [Note] /usr/local/mysql51/libexec/mysqld: Shutdown complete

执行chgrp -R mysql /usr/local/mysql51/var/*

重启mysql