Fixes are available
Db2 Version 11.1 Mod 3 Fix Pack 3 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix001 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod3 Fix Pack3 iFix002 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 6 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 5 for Linux, UNIX, and Windows
Db2 Version 11.1 Mod 4 Fix Pack 7 for Linux, UNIX, and Windows
APAR status
Closed as program error.
Error description
Db2dart takes a very long time (hours) to complete on a column-organized table whereas it completes in a short time (minutes) on a row-organized table with same data size. In db2dart processing, while accesing pages, the integrity checks made on column-organized tables are different than on row-organized tables. This integrity check referred to as cross data-index check is not done for row organized tables. In this cross data-index check function, we access data pages based on an index map created for column-organized tables. Due to a problem in the sequence of some sub-functions in it, we require to do some extra processing to reach next page. This extra processing is causing the delays in the db2dart performance as it needs to be done for each page find. So the time required for db2dart scales up depending on the size (number of pages) of the column-organized table.
Local fix
Run INSPECT command instead of db2dart to inspect the column-organized tables.
Problem summary
**************************************************************** * USERS AFFECTED: * * ALL * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to Db2 11.1 Mod 3 Fix Pack 3 or higher * ****************************************************************
Problem conclusion
First fixed in Db2 11.1 Mod 3 Fix Pack 3
Temporary fix
Comments
APAR Information
APAR number
IT21938
Reported component name
DB2 FOR LUW
Reported component ID
DB2FORLUW
Reported release
B10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-08-09
Closed date
2018-03-19
Last modified date
2018-03-19
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
DB2 FOR LUW
Fixed component ID
DB2FORLUW
Applicable component levels
RB10 PSN
UP
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSEPGG","label":"DB2 for Linux- UNIX and Windows"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
Document Information
Modified date:
04 May 2022