PTF Cover Letter
PTF ( Program Temporary Fixes ) Cover letter
LIC-DB-OTHER-PERFM PERFORMANCE DEGRADATION FOR LARGE DELETE
Pre/Co-Requisite PTF / Fix List
REQ LICENSED PTF/FIX LEVEL
TYPE PROGRAM REL NUMBER MIN/MAX OPTION
---- -------- --- ------- ------- ------
CO 5770999 710 MF53953 00/00 0000
NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
including programs that circumvent control technology designed to limit
interactive capacity to purchased levels. This PTF may be a prerequisite
for future PTFs. By applying this PTF you authorize and agree to the
foregoing.
This PTF is subject to the terms of the 'IBM License Agreement for Machine
Code', the terms of which were provided in a printed document that was
delivered with the machine.
SUBJECT TO ANY WARRANTIES WHICH CAN NOT BE EXCLUDED OR EXCEPT AS EXPLICITLY
AGREED TO IN THE APPLICABLE LICENSE AGREEMENT OR AN APPLICABLE SUPPORT
AGREEMENT, IBM MAKES NO WARRANTIES OR CONDITIONS EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.
APAR Error Description / Circumvention
-----------------------------------------------
A delete statement which is deleting a large number of rows from
a large table over which indexes exist may experience a
performance degradation.
CORRECTION FOR APAR MA42536 :
-----------------------------
This PTF will limit the force of the recycle index during
periods of high activity to alleviate some of the performance
degradation.
CIRCUMVENTION FOR APAR MA42536 :
--------------------------------
None.
Activation Instructions
None.
Special Instructions
None.
Default Instructions
THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.
Supersedes
PTF/FIX NO(S). APAR TITLE LINE
-------------- ------------------------------------------------------------
MF56077 LIC-DB-OTHER-LOOP DBIOXX CONSUMING CPU #DBRECYC, EOJ STUCK,
MF53952 PERFM-LIC-DB EXCESSIVE I/O DURING DBMON ANALYSIS QUERY W/MAX
MF51375 OSP-DB #dbrecyc diagnostics improved and recix max limit inc
MF49873 OSP- MSGMCH1210-F/CBLABRANCH-T/QDBEXDME DSPFD GETS MCH1210
Summary Information
| System.............................. | i |
| Models.............................. | |
| Release............................. | V7R1M0 |
| Licensed Program............... | 5770999 |
| APAR Fixed.......................... | View details for APAR MA42536 |
| Superseded by:...................... | View fix details for PTF MF68054 |
| Recompile........................... | N |
| Library............................. | QSYS |
| MRI Feature ........................ | NONE |
| Cum Level........................... | C3298710 |
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Document Information
Modified date:
01 December 2020