A fix is available
APAR status
Closed as program error.
Error description
ABEND04E 00C90101 in DSNIONX2 ERQUAL5053 . The abend occurs during partial decompression of columns for an index key. This is a timing issue between a read with UR and a cross partition update: The job reads (with UR) the pointer record on db.ts.page 1AC0.0013.0000.00005020 at id x'30'. (In partition 1.) This was a pointer record to overflow record on db.ts.page 1AC0.0013.0001.00359559 at id x'34'. (In partition 2.) From the id map on page x'5020', the record had been pseudo-deleted.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * All Db2 12 for z/OS Users of Cross * * Partition UPDATE. * **************************************************************** * PROBLEM DESCRIPTION: * * ABEND04E RC00C90101 at DSNIDM * * DSNIONX2:5053 during data query. * **************************************************************** * RECOMMENDATION: * * Apply corrective PTF when available. * **************************************************************** During the cross-partition update, the overflow record's attribute indicating a different partition than its pointer record was not turned on properly. This caused the partition number to be calculated incorrectly while retrieving the overflow record, and later failed the decompression of the data.
Problem conclusion
Db2 is modified to turn on the cross-partition attribute of the overflow record properly during UPDATE process.
Temporary fix
Comments
APAR Information
APAR number
PI86838
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
C1Z
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-09-05
Closed date
2017-11-09
Last modified date
2017-12-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI51796
Modules/Macros
DSNISRTI
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
RC10 PSY UI51796
UP17/11/28 P F711
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
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Document Information
Modified date:
02 December 2017