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2788294 - Database error 8642 at OPC

Symptom

Error message 'Database error 8642 at OPC' displays in sm21 system log from time to time on BW system.

Corresponding developer trace shows information similar with below:

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C (8642) [42000] [Microsoft][ODBC Driver 13 for SQL Server][SQL Server]The query processor could not start the necessary thread resources for parallel query execution.
C Error 99 (dbcode 8642) in StartSelect
C StartSelect: stmt of NULL_STMTID
C select TOP 100 [P0000].[/BIC/TGDT23G346] AS [0000000052] ,[T0000].[TXTMD]AS     
...                                                                                                                                <--- the sql statement which caused this error
C [0000000052] ASC OPTION (USE HINT('ENABLE_PARALLEL_PLAN_PREFERENCE') , MAXDOP 4

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Environment

SQL Server 2014 (and newer)

Product

SAP Solution Manager 7.2

Keywords

'Database error 8642 at OPC' 8642 , KBA , BW-SYS-DB-MSS , BW Microsoft SQL Server , BC-DB-MSS , SQL Server in SAP NetWeaver Products , Problem

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