A fix is available
APAR status
Closed as program error.
Error description
ABEND04E RC00C90101 in DSNISORT ERQUAL5003 can occur in rare case under ISO(CS) bind. In this particular case customer was running in ISO(UR), so the chance to hit is increasing.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * All Db2 users with queries using a * * data-partitioned secondary index (DPSI). * **************************************************************** * PROBLEM DESCRIPTION: * * ABEND04E RC00C90101 * * LOC=DSNIDM.DSNISORT ERQUAL5003 * **************************************************************** * RECOMMENDATION: * * Apply corrective PTF when available * **************************************************************** When a reader without holding a lock (e.g. ISO(UR) or ISO(CS)) uses DPSI to retrieve and order data by DPSI key columns, the keys may be updated by another thread. When Db2 detects a change in the key, Db2 will skip the row and fetch the next one based on the order of the key. However, Db2 incorrectly uses the changed key instead of the previous key which has the correct position to perform the next fetch. This causes Db2 to abend in a failed sanity check when Db2 detects the retrieved data is out of order during the fetch-next processing.
Problem conclusion
Db2 DPSI data retrieval logic has been fixed to preserve the previous key position for fetch-next processing when Db2 skips a row due to a change in the key values.
Temporary fix
Comments
APAR Information
APAR number
PH22119
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
B10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2020-02-12
Closed date
2020-03-06
Last modified date
2020-04-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI68252 UI68253
Modules/Macros
DSNIFDPO
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
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:
27 March 2020