客户端无法通过4040端口连接到mysql proxy

客户端无法通过4040端口连接到mysql proxy

不能连接mysql服务器的原因
总结下来也就以下几种
检查你的PHP.ini 是否已经开启了对mysql的支持，如果你是WINDOWS系统的
;extension=php_mbstring.dll （这不选一般用PHPMYADMIN会出红色提示，故必选）
;extension=php_mysql.dll （这个是用来支持MYSQL的，要支持MYSQL必选）
看看前面的；是不是已经去掉
LINUX可能要稍微麻烦一些，因为在你编译PHP的时候./configure prix= 后面已经定义好了

另外一种情况，就是检查你输入的帐号密码，是否错误

还有一种情况，比如root，在你安装MYSQL的时候，会询问你支不支持远程连接
如果你当时选的不支持，那么你远程用root连接mysql，一样会提示错误

大概就这么情况，希望对你有所帮助

我也碰到类似问题，不过问题不太一样
我是刚开始能连上，连接一多就间歇性出问题
一下能连上，一下报错，非常有规律

2010-11-30 23:04:06: (debug) abs wait-for-event::done usec= 0
2010-11-30 23:04:06: (debug) abs lua-exec::done usec= 0
2010-11-30 23:04:06: (debug) [network-mysqld.c:937]: error on a connection (fd: -1 event: 0). closing client connection.
2010-11-30 23:04:07: (debug) abs wait-for-event::done usec= 0
2010-11-30 23:04:07: (debug) abs lua-exec::done usec= 0
2010-11-30 23:04:08: (debug) [network-mysqld.c:937]: error on a connection (fd: -1 event: 0). closing client connection.
2010-11-30 23:04:09: (debug) abs wait-for-event::done usec= 0
2010-11-30 23:04:09: (debug) abs lua-exec::done usec= 0
2010-11-30 23:04:09: (debug) [network-mysqld.c:937]: error on a connection (fd: -1 event: 0). closing client connection.
2010-11-30 23:04:10: (debug) abs wait-for-event::done usec= 0
2010-11-30 23:04:10: (debug) abs lua-exec::done usec= 0
2010-11-30 23:04:11: (debug) [network-mysqld.c:937]: error on a connection (fd: -1 event: 0). closing client connection.
2010-11-30 23:04:12: (debug) abs wait-for-event::done usec= 0
2010-11-30 23:04:12: (debug) abs lua-exec::done usec= 0
2010-11-30 23:04:12: (debug) [network-mysqld.c:937]: error on a connection (fd: -1 event: 0). closing client connection.
2010-11-30 23:04:13: (debug) abs wait-for-event::done usec= 0
2010-11-30 23:04:13: (debug) abs lua-exec::done usec= 0
2010-11-30 23:04:14: (debug) [network-mysqld.c:937]: error on a connection (fd: -1 event: 0). closing client connection.
2010-11-30 23:04:15: (debug) abs wait-for-event::done usec= 0
2010-11-30 23:04:15: (debug) abs lua-exec::done usec= 0
2010-11-30 23:04:15: (debug) [network-mysqld.c:937]: error on a connection (fd: -1 event: 0). closing client connection.
2010-11-30 23:04:16: (debug) abs wait-for-event::done usec= 0
2010-11-30 23:04:16: (debug) abs lua-exec::done usec= 0
2010-11-30 23:04:17: (debug) [network-mysqld.c:937]: error on a connection (fd: -1 event: 0). closing client connection.