A fix is available
APAR status
Closed as program error.
Error description
While running XML queries with isolation level UR or CS_CDN, abend 04E DSNNOGET:M720 may be encountered.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All DB2 Customers using XML columns. * **************************************************************** * PROBLEM DESCRIPTION: ABEND04E RC00E70005 DSNNOGET:M720 while * * running XML queries with isolation * * level UR or CS_CDND * **************************************************************** * RECOMMENDATION: * **************************************************************** During index access path with XML select and lock avoidance, one agent can read the base row, but if it gets suspended before it has a chance to acquire the XML locks, another agent can get in and delete the row and the XML columns and commit and leave. In this case the selecting agent will abend because it will not find the delete XML column. DB2 code needs to check for data page changes to handle the window with lock avoidance.
Problem conclusion
DB2 code was changed to check the page after getting XML locks and take corrective action if the page changed in the duration.
Temporary fix
Comments
APAR Information
APAR number
PK59770
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
910
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2008-01-23
Closed date
2008-07-21
Last modified date
2008-09-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK38382
Modules/Macros
DSNIONX2 DSNIOST2
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
R910 PSY UK38382
UP08/08/11 P F808
Fix is available
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Document Information
Modified date:
02 September 2008