FIX: Error message when two or more merge agents are trying to adjust a publisher identity range in parallel in SQL Server 2008: "Msg 548, The insert failed. It conflicted with an identity range check constraint"

Microsoft distributes Microsoft SQL Server 2008 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 fix release.
SYMPTOMS
Consider the following scenario:
  • In Microsoft SQL Server 2008, you configure a merge replication.
  • You create a publication on a table that contains an identity column, and you enable automatic identity range management.
  • You create several subscriptions for the publication.
  • You insert data on the publication and two or more merge agents are trying to adjust a publisher identity range in parallel.
In this scenario, you may receive the following error message:
Msg 548,
"The insert failed. It conflicted with an identity range check constraint".

After you receive this error message, if you run the sp_adjustpublisheridentityrange stored procedure on the publisher, the execution will succeed. However, it will not resolve the problem.
CAUSE
This problem occurs because two identity ranges are allocated simultaneously. The identity column gets seeded to the beginning of the first range, but the table constraint is set to the second range. Therefore, the IDENT_CURRENT value is lower than the table constraint. Therefore, the problem that is described in the "Symptoms" occurs.
RESOLUTION

The release version of SQL Server 2008

The fix for this issue was first released in Cumulative Update 7. For more information about how to obtain this cumulative update package for SQL Server 2008, click the following article number to view the article in the Microsoft Knowledge Base:
973601 Cumulative update package 7 for SQL Server 2008
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 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:
956909 The SQL Server 2008 builds that were released after SQL Server 2008 was released

SQL Server 2008 Service Pack 1

Important You must install this fix if you are running SQL Server 2008 Service Pack 1.

The fix for this issue was first released in Cumulative Update 5 for SQL Server 2008 Service Pack 1. For more information about this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
975977 Cumulative update package 5 for SQL Server 2008 Service Pack 1
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 fix release. Microsoft recommends 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:
970365 The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 1 was released
Microsoft SQL Server 2008 hotfixes are created for specific SQL Server service packs. You must apply a SQL Server 2008 Service Pack 1 hotfix to an installation of SQL Server 2008 Service Pack 1. By default, any hotfix that is provided in a SQL Server service pack is included in the next SQL Server service pack.
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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 New 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
Properties

Article ID: 975037 - Last Review: 09/21/2009 10:01:32 - Revision: 1.1

Microsoft SQL Server 2008 Standard, Microsoft SQL Server 2008 Enterprise, Microsoft SQL Server 2008 Developer, Microsoft SQL Server 2008 Workgroup

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