A fix is available
APAR status
Closed as program error.
Error description
An UPDATE SQL statement that uses "FOR ROW n OF ROWSET", against a parent or child table in a Referential Integrity relationship, may abend with a 00C90101 DSNILKES:5007, if lock escalation occurs. RC00C90101 MODDSNILKES ERQUAL5007
Local fix
Avoid lock escalation.
Problem summary
**************************************************************** * USERS AFFECTED: * * All Db2 11 for z/OS and Db2 12 for z/OS * * users using ROWSET to access tables with * * Referential Integrity (RI) relationship. * **************************************************************** * PROBLEM DESCRIPTION: * * Lock escalation may fail in DSNILKES * * with ERQUAL5007 when using ROWSET * * to access tables with RI relationship. * **************************************************************** * RECOMMENDATION: * **************************************************************** When using ROWSET to access tables with RI relationship, the locks acquired by Db2 for parent and child tables have different lock resource names. During lock escalation, Db2 freed those locks by using their resource names but missed those that were acquired by Index Manager. This caused lock escalation to fail at DSNILKES:5007
Problem conclusion
Fixes made in Db2 to make sure all the locks under different resource names are released when lock escalation happens.
Temporary fix
Comments
APAR Information
APAR number
PI90080
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
2017-11-09
Closed date
2018-01-04
Last modified date
2018-02-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI53022 UI53023
Modules/Macros
DSNILKES
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:
01 February 2018