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FIX: When you run multiple full-text search queries in parallel in SQL Server 2008, the queries take much longer to finish than if you run them sequentiallyArticle ID: 958947 - View products that this article applies to. Bug #: 50003651 (SQL Hotfix) 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. SYMPTOMSIn Microsoft SQL Server 2008, you have multiple full-text search queries. Each of them takes a long time to finish. However, if you run these queries in parallel, the queries may take much longer to finish than if you run them sequentially. CAUSEIn this scenario, background merges are automatically used to reduce the number of fragments and to improve query performance. This problem occurs because the background merges are blocked by one of the long-running queries. This causes the other queries to be blocked by the background merges. RESOLUTIONThe 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, click the following article number to view the article in the Microsoft Knowledge Base: 960484 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:
(http://support.microsoft.com/kb/960484/
)
Cumulative update package 3 for SQL Server 2008956909
(http://support.microsoft.com/kb/956909/
)
The SQL Server 2008 builds that were released after SQL Server 2008 was releasedSTATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. MORE INFORMATIONFor more information about what files are changed, and for information about any prerequisites to apply the cumulative update package that contains the hotfix that is described in this Microsoft Knowledge Base article, click the following article number to view the article in the Microsoft Knowledge Base: 960484
(http://support.microsoft.com/kb/960484/LN/
)
Cumulative update package 3 for SQL Server 2008REFERENCES
For more information about the list of builds that are available after the release of SQL Server 2008, click the following article number to view the article in the Microsoft Knowledge Base:
956909
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:
(http://support.microsoft.com/kb/956909/
)
The SQL Server 2008 builds that were released after SQL Server 2008 was released
935897
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:
(http://support.microsoft.com/kb/935897/
)
An Incremental Servicing Model is available from the SQL Server team to deliver hotfixes for reported problems
822499 For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/822499/
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New naming schema for Microsoft SQL Server software update packages
824684
(http://support.microsoft.com/kb/824684/
)
Description of the standard terminology that is used to describe Microsoft software updatesProperties |
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