本帖最后由 simple 于 2012-6-17 19:12 编辑
Bugsong 发表于 2012-6-16 22:28 
服务器环境是什么？数据库链接是否有异常？网站程序是什么？可能是因为数据库高负载引发的宕机和访问速度 ...
Centos 6.2 64位    PHP v5.2.17p1
nginx/1.0.12
mysql 5.1.57-log
discuz X2.5
当机后错误提示信息：
Discuz! Database Error
(2002) notconnect
PHP Debug
No.        File        Line        Code
1        forum.php        49        discuz_application->init()
2        source/class/discuz/discuz_application.php        65        discuz_application->_init_db()
3        source/class/discuz/discuz_application.php        370        discuz_database::init(%s, Array)
4        source/class/discuz/discuz_database.php        23        db_driver_mysql->connect()
5        source/class/db/db_driver_mysql.php        74        db_driver_mysql->_dbconnect(%s, %s, %s, %s, %s, %s)
6        source/class/db/db_driver_mysql.php        87        db_driver_mysql->halt(%s, %d)
7        source/class/db/db_driver_mysql.php        218        break()