Discuz! info: MySQL Query Error

Time: 2008-10-14 1:29pm
Script: /viewthread.php

SQL: SELECT uid FROM [Table]sessions WHERE uid IN(2513722,3395363,3248876,3248876,315760,1234460,1454229,2449463,3438141,1517221,3631092,1323713,4038224,2081159,2081159) AND invisible=0
Error: Lost connection to MySQL server during query
Errno.: 2013

Similar error report has beed dispatched to administrator before.