SQL 2012 log files frequently appear: Svchost (4892) database engine detached database (1, C:\Windows\system32\LogFiles\Sum\Current.mdb)

Svchost (4892) database engine detached database (1, C:\Windows\system32\LogFiles\Sum\Current.mdb). (time = 0 seconds)

Internal timing sequence: [1] 0.000, [2] 0.000, [3] 0.000, [4] 0.000, [5] 0.000, [6] 0.016, [7] 0.000, [8] 0.000, [9] 0.000, [10] 0.016, [11] ] 0.031, [12] 0.000.
Received cache: 0 0

https://support.microsoft.com/zh-cn/kb/2900773

ReasonThis issue occurs when you systemidentity.mdb a problem with data in the database file.


Solution Solutionsto stop this event from occurring, stop the user Access Logging service.
After you stop the service, do any of the following.

< deletion and regeneration of database files >
Delete and regenerate the corrupted database file.
After you stop the service, delete all the files in the "%systemroot%\system32\logfiles\sum\" folder.
after that, start the user Access logging service. The database will be rebuilt.

< Stop the user Access Logging service >
If you do not use the user Access Logging service, disable it.
After you stop the service, disable the "Startup type" for "User access Logging" in the Maintenance tool's "services" item.

SQL 2012 log files frequently appear: Svchost (4892) database engine detached database (1, C:\Windows\system32\LogFiles\Sum\Current.mdb)