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Delphix

MSSQL Refresh Fails with Error 'Cannot drop the database while the database snapshot "VMcL_dbss1800" refers to it' (KBA4986)

 

KBA

KBA# 4986

 

Issue

In SQL Server 2016 the ability to perform database snapshots was introduced. An application can generate a database snapshot during its deployment. These snapshots can negatively impact Delphix related operations.

When performing a VDB refresh, Delphix will need to drop the database as part of the process. If a database snapshot is present then the following error will be generated:

Error

Failed to delete the virtual database "VMcL_6XY2019": Changed database context to 'master'. ALTER DATABASE [VMcL_6XY2019] SET OFFLINE WITH ROLLBACK IMMEDIATE Nonqualified transactions are being rolled back. Estimated rollback completion: 0%. Nonqualified transactions are being rolled back. Estimated rollback completion: 100%. Changed database context to 'master'. DROP DATABASE [VMcL_6XY2019] Msg 3709, Level 16, State 2, Server 10-43-15-30\SQL2017, Line 1 Cannot drop the database while the database snapshot "VMcL_dbss1800" refers to it. Drop that database first. Changed database context to 'master'. Msg 50000, Level 11, State 127, Server 10-43-15-30\SQL2017, Line 4 Failed to drop database VMcL_6XY2019 die : Error: drop_database failed At C:\Program Files\Delphix\DelphixConnector\423f7b70-76b6-6eee-d8ad-622a693f2f53-vdb-4\SCRIPT\DropDatabase.ps1:26 char:12 + die <<<< "$($args[0])" + CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException + FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,die .

Error Code

exception.db.mssqlvdb.vdb.delete.failed

Suggested Action

Make sure that the user "AD\windows_OS_user" has privileges to delete the database.

Key section of the error

Cannot drop the database while the database snapshot "VMcL_dbss1800" refers to it. Drop that database first.

 

Applicable Delphix Versions

This article applies to the following versions of the Delphix Engine:

Major Release

Sub Releases

5.3

5.3.0.0, 5.3.0.1, 5.3.0.2, 5.3.0.3, 5.3.1.0, 5.3.1.1, 5.3.1.2, 5.3.2.0, 5.3.3.0, 5.3.3.1, 5.3.4.0, 5.3.5.0, 5.3.6.0

5.2 5.2.2.0, 5.2.2.1, 5.2.3.0, 5.2.4.0, 5.2.5.0, 5.2.5.1, 5.2.6.0, 5.2.6.1

5.1

5.1.4.0, 5.1.5.0, 5.1.5.1, 5.1.6.0, 5.1.7.0, 5.1.8.0, 5.1.8.1, 5.1.9.0, 5.1.10.0

Resolution

The database snapshot will need to be deleted, this can be done from SQL Server Management Studio:

1. Select the offending Database snapshot, in this example "VMcL_dbss1800".

clipboard_e42974fad56a17f6be6c7920a24db8e82.png

2. Right-click and select Delete.

3. Press OK on the Delete Object dialog.

clipboard_e918336b2d62924bbb0ec24e8288dea91.png

4. Try the Refresh/Rollback again.