Microsoft distributes Microsoft SQL Server 2008 Service Pack 2 (SP2) or Microsoft SQL Server 2008 R2 fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 Service Pack 2 (SP2) or SQL Server 2008 R2 fix release.

Symptoms

When you use a query to stop an Extended Events session or to alter its state in SQL Server 2008 or in SQL Server 2008 R2, the query stops responding (hangs), and the session cannot be cancelled by using a KILL statement.

Note The following queries stop or alter the Extended Events session:

  • DROP EVENT SESSION

  • ALTER EVENT SESSION


Note You have to restart the SQL Server service to recover from this issue.

Resolution

Cumulative update information

Cumulative Update 8 for SQL Server 2008 R2 Service Pack 2

The fix for this issue was first released in Cumulative Update 8. For more information about how to obtain this cumulative update package for SQL Server 2008 R2 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:

2871401 Cumulative update package 8 for 2008 R2 Service Pack 2Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 R2 Service Pack 2 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

2730301 The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 Service Pack 2 was released

SQL Server 2008 R2 Service Pack 1


The fix for this issue was first released in Cumulative Update 6 for SQL Server 2008 R2 Service Pack 1. For more information about how to obtain this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:

2679367 Cumulative Update package 6 for SQL Server 2008 R2 Service Pack 1Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 R2 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

2567616 The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 Service Pack 1 was released

SQL Server 2008 Service Pack 2


The fix for this issue was first released in Cumulative Update 3. For more information about how to obtain this cumulative update package for SQL Server 2008 SP2, click the following article number to view the article in the Microsoft Knowledge Base:

2498535 Cumulative update package 3 for SQL Server 2008 SP2
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 SP2 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

2402659 The SQL Server 2008 builds that were released after SQL Server 2008 SP2 was released

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

Rule software

Rule title

Rule description

Product versions against which the rule is evaluated

System Center Advisor

SQL Server missing update KB2511963 to prevent Query to Hang while stopping XEvent session

System Center Advisor checks if this instance of SQL Server contains the fix that is d iscussed in this article, If the fix is not present, System Center Advisor generates a message. Review the details in the KB article and take necessary action.

SQL Server 2008

SQL Server 2008 R2

References

For more information about SQL Server Extended Events sessions, visit the following MSDN website:

General information about SQL Server Extended Events sessions

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