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sp_msx_defect (Transact-SQL)


Applies To: SQL Server 2014, SQL Server 2016 Preview

Removes the current server from multiserver operations.


sp_msx_defect edits the registry. Manual editing of the registry is not recommended because inappropriate or incorrect changes can cause serious configuration problems for your system. Therefore, only experienced users should use the Registry Editor program to edit the registry. For more information, see the documentation for Microsoft Windows.

Applies to: SQL Server (SQL Server 2008 through current version).

Topic link icon Transact-SQL Syntax Conventions

sp_msx_defect [@forced_defection =] forced_defection

[ @forced_defection =] forced_defection

Specifies whether or not to force the defection to occur if the Master SQLServerAgent has been permanently lost due to an irreversibly corrupt msdb database, or no msdb database backup. forced_defection is bit, with a default of 0, which indicates that no forced defection should occur. A value of 1 forces defection.

After forcing a defection by executing sp_msx_defect, a member of the sysadmin fixed server role at the Master SQLServerAgent must run the following command to complete the defection:

EXECUTE msdb.dbo.sp_delete_targetserver @server_name = 'tsx-server', @post_defection =  0;

0 (success) or 1 (failure)

When sp_msx_defect properly completes, a message is returned.

To execute this stored procedure, a user must be a member of the sysadmin fixed server role.

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