Article ID: 317821 - View products that this article applies to.
This article was previously published under Q317821
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Bug #: 101305 (SQLBUG_70)
If you configure SQL Server to use more than one processor on a multi-processor computer, and you run
a query that uses intra-query parallelism, the query may stop responding on Microsoft SQL Server 7.0 "Golden",
Service Pack (SP1), Service Pack (SP2), and Service Pack (SP3) versions . After you upgrade to SQL Server 7.0
Service Pack 4 ( SP4), you may receive the following error message:
Server: Msg 8650, Level 13, State 1, Line 1 Intra-query parallelism caused your server
command (process ID #7) to deadlock. Rerun the query without intra-query parallelism by using
the query hint option (maxdop 1).
If the max degree of parallelism option is set to zero, or greater than 1, you may receive the error message.
To work around this problem, use one of the following methods:
Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article.
For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/315662/ )FIX: Parallel Query May Encounter Undetected Deadlock with Itself
(https://support.microsoft.com/kb/311104/ )FIX: The SELECT Statement with Parallelism Enabled May Cause an Assertion
(https://support.microsoft.com/kb/263695/ )BUG: UPDATE Statement with SELECT DISTINCT Subquery with Parallelism Enabled May Cause Access Violation