A fix is available
APAR status
Closed as program error.
Error description
NUMEROUS ABEND SYMPTOMS INCLUDING A DB2 CRASH MAY OCCUR DUE TO A LARGE STORAGE OVERLAY WHEN EXECUTING A SQL STATEMENT WITH CPU PARALLELISM PLEASE NOTE THAT THIS LARGE STORAGE OVERLAY COULD CAUSE NUMEROUS UNPREDICTABLE SYMPTOMS INCLUDING A DB2 CRASH. HERE ARE SOME POSSIBLE SYMPTOMS: ABEND04E RC00E2000D AT DSNXPDST DSNSVSFB OFFSET0848 ABEND0C4 RC00000038 AT DSNXRFN OFFSET2344 ABEND0C4 RC00000038 AT DSNXECPT OFFSET0146 ABEND04E RC00F30801 AT DSNAPRHX OFFSET20D4 OTHER FAILING SYMPTOMS ARE POSSIBLE
Local fix
TURN OFF PARALLELISM FOR ANY IMPACTED APPLICATION WITH CURRENT DEGREE OF 1
Problem summary
**************************************************************** * USERS AFFECTED: All DB2 9 for z/OS and DB2 10 for z/OS * * users with parallelism enabled. * **************************************************************** * PROBLEM DESCRIPTION: Numerous ABEND symptoms including * * a DB2 crash may occur. * **************************************************************** * RECOMMENDATION: * **************************************************************** Numerous ABENDs and a DB2 crash may occur. When we run a query with large record size, DB2 parallelism may not be able to handle it correctly. Since some internal inconsistency has been observed about how to handle large size records. The problem is not query specific, only happens when combined record size passing by parallel pipe is larger than 32K.
Problem conclusion
DB2 has been fixed to handle large size record case correctly under parallelism processing. After the fix, ABENDs no longer occur. Additional keywords: PARALLELISM SQLPARALLELISM DB2PARALL/K
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
PM77208
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
A10
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt
Submitted date
2012-11-15
Closed date
2013-03-26
Last modified date
2013-05-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK92916 UK92917
Modules/Macros
DSNXOCON DSNXOPTT DSNXPCRT DSNXPRE2 DSNXPSEN DSNXPSPD
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
Fix is available
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Document Information
Modified date:
03 May 2013