我有一个奇怪的问题。我的MySQL 5.1安装在我的Ubuntu 9.04。

我已经使用了很长一段时间(比如3月),一切都在朝好的方向发展。直到我遇到这个非常奇怪的问题。

当我想连接到一个随机数据库我得到这样的信息:

ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id:    1
Current database: test_cake

ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111)
ERROR: 
Can't connect to the server

这只是一些数据库发生的,而有些则完全有用的和健康的。在此之后,如果我尝试重新启动服务器我得到这个。

shell> /etc/init.d/mysql restart
 * Stopping MySQL database server mysqld                                        cat: /var/run/mysqld/mysqld.pid: Permiso denegado
                                                                         [fail]
 * Starting MySQL database server mysqld                                        cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
cat: /var/run/mysqld/mysqld.pid: Permiso denegado
                                                                         [fail]
("permiso denegado" is "permission denied").

我不知道该怎么办。我改变/var/run/mysqld/mysqld.pid属性,但仍然没有工作。

有人能帮助我吗?

有帮助吗?

解决方案

请参阅如果这将工作:

su                   (become root)
su mysql             (become user mysql, or whatever account mysql runs as)
cd /var/run/mysqld   (see if the directory is accessible to mysql)
cat mysqld.pid       (see if the file is accessible)
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