SQL Server的error log里有大量的"DBCC TRACEON 3604, server process ID (SPID) 91"记录
如题,SQL Server2000的ERRORLOG中有大量的这类事件(因为不会贴图,直接Copy/Paste):
2009-08-20 04:04:05.62 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:05:07.48 spid92 DBCC TRACEON 3604, server process ID (SPID) 92.
2009-08-20 04:06:08.25 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:07:08.12 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:08:05.25 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:09:05.73 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:10:08.15 spid92 DBCC TRACEON 3604, server process ID (SPID) 92.
2009-08-20 04:11:06.23 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:12:06.70 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:13:07.04 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:14:07.59 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:15:08.00 spid93 DBCC TRACEON 3604, server process ID (SPID) 93.
2009-08-20 04:16:06.86 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:17:07.26 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:18:08.22 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:19:05.06 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:20:10.31 spid92 DBCC TRACEON 3604, server process ID (SPID) 92.
2009-08-20 04:21:08.01 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:22:07.87 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:23:07.92 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:24:08.28 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:25:10.76 spid92 DBCC TRACEON 3604, server process ID (SPID) 92.
2009-08-20 04:26:07.39 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:27:07.89 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:28:08.11 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:29:08.48 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:30:09.00 spid93 DBCC TRACEON 3604, server process ID (SPID) 93.
2009-08-20 04:31:07.73 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:32:08.01 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 04:33:05.64 spid91 DBCC TRACEON 3604, server process ID (SPID) 91.
2009-08-20 15:28:34.98 spid89 DBCC TRACEON 3604, server process ID (SPID) 89.
2009-08-20 15:28:58.12 spid89 DBCC TRACEON 3604, server process ID (SPID) 89.
2009-08-20 15:30:14.57 spid89 DBCC TRACEON 3604, server process ID (SPID) 89.
2009-08-20 15:31:33.68 spid89 DBCC TRACEON 3604, server process ID (SPID) 89.
2009-08-20 15:34:06.37 spid98 DBCC TRACEON 3604, server process ID (SPID) 98.
2009-08-20 15:35:07.34 spid99 DBCC TRACEON 3604, server process ID (SPID) 99.
2009-08-20 15:36:08.54 spid97 DBCC TRACEON 3604, server process ID (SPID) 97.
2009-08-20 15:37:04.37 spid93 DBCC TRACEON 3604, server process ID (SPID) 93.
2009-08-20 15:38:05.82 spid92 DBCC TRACEON 3604, server process ID (SPID) 92.
2009-08-20 15:39:05.81 spid92 DBCC TRACEON 3604, server process ID (SPID) 92.
2009-08-20 15:40:05.48 spid93 DBCC TRACEON 3604, server process ID (SPID) 93.
这是怎么回事?