我的discuz论坛运行很正常，但是系统错误记录中却有很多下面的记录，为什么？

我的discuz论坛运行很正常，但是系统错误记录中却有很多下面的记录

MySQL  06-9-21 07:57 plugin.php : Can't connect to MySQL server on '203.171.230.118' (10065) -  
MySQL  06-9-21 07:13 forumdisplay.php : Lost connection to MySQL server during query -  
MySQL  06-9-21 05:43 index.php : Lost connection to MySQL server during query -  
MySQL  06-9-21 04:46 my.php : Lost connection to MySQL server during query -  
MySQL  06-9-21 04:40 index.php : Lost connection to MySQL server during query -  
MySQL  06-9-21 04:22 index.php : Lost connection to MySQL server during query -  
MySQL  06-9-21 03:43 viewthread.php : Can't connect to MySQL server on '203.171.230.118' (10065) -  
MySQL  06-9-21 03:37 index.php : Lost connection to MySQL server during query -  
MySQL  06-9-21 03:21 viewthread.php : Can't connect to MySQL server on '203.171.230.118' (10065) -  
MySQL  06-9-21 03:16 post.php : Lost connection to MySQL server during query -  
MySQL  06-9-21 03:14 viewthread.php : Lost connection to MySQL server during query -  
MySQL  06-9-21 03:12 redirect.php : Lost connection to MySQL server during query -  
MySQL  06-9-21 02:45 viewthread.php : Lost connection to MySQL server during query -  
MySQL  06-9-21 01:41 viewthread.php : Can't connect to MySQL server on '203.171.230.118' (10065) -  
MySQL  06-9-21 01:09 viewthread.php : Can't connect to MySQL server on '203.171.230.118' (10065) -  
MySQL  06-9-21 01:05 index.php : Lost connection to MySQL server during query -  



基本上每个小时都有，请问这正常吗，如何解决？

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