FIX: "System_health" session diagnostics collection task freezes Microsoft SQL Server 2012

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Article ID: 2800256 - View products that this article applies to.
Microsoft distributes Microsoft SQL Server 2012 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 2012 fix release.
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Symptoms

In Microsoft SQL Server 2012, the System_health session diagnostics collection task may freeze. To determine whether this issue has occured, run the following query, and then monitor the value of the wait_time column. When this issue occurs, the value of the wait_time column should keep increasing.
select wait_time, wait_type,* from sys.dm_exec_requests 
where command='SYSTEM_HEALTH_MONITOR'

Note The System_health session diagnostics collection task collects information about the system component results that are returned by running the sp_server_diagnostics stored procedure. For more information about the sp_server_diagnostics stored procedure, go to the following MSDN website:
General information about the sp_server_diagnostics stored procedure

Resolution

Cumulative update package 1 for SQL Server 2012

The fix for this issue was first released in Cumulative Update 1 for SQL Server 2012. For more information about how to obtain this cumulative update package for SQL Server, click the following article number to view the article in the Microsoft Knowledge Base:
2679368 Cumulative update 1 for SQL Server 2012
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 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:
2692828 The SQL Server 2012 builds that were released after SQL Server 2012 was released

Status

This is a known issue in SQL Server 2012.

References

For more information about the Incremental Servicing Model for SQL Server, click the following article number to view the article in the Microsoft Knowledge Base:
935897 An Incremental Servicing Model is available from the SQL Server team to deliver hotfixes for reported problems
For more information about the naming schema for SQL Server updates, click the following article number to view the article in the Microsoft Knowledge Base:
822499 Naming schema for Microsoft SQL Server software update packages
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

More information

The following table provides more information about the products or tools that automatically check for this condition on your instance of SQL Server and on the versions of the SQL Server product against which the rule is evaluated:
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Rule softwareRule titleRule descriptionProduct versions against which the rule is evaluated
System Center AdvisorSQL Server system health diagnostics collection task hangs indefinitely.System Center Advisor checks if this instance of SQL Server contains the fix that is discussed in this article. If the fix is not present, System Center Advisor generates a message. Review the details in the Knowledge Base article, and take necessary action.SQL Server 2012

Properties

Article ID: 2800256 - Last Review: February 8, 2013 - Revision: 3.0
Applies to
  • Microsoft SQL Server 2012 Developer
  • Microsoft SQL Server 2012 Enterprise
  • Microsoft SQL Server 2012 Express
  • Microsoft SQL Server 2012 Standard
  • Microsoft SQL Server 2012 Web
  • SQL Server 2012 Enterprise Core
Keywords: 
kbfix kbqfe kbsurveynew kbexpertiseadvanced KB2800256

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