MF64300 - OSP-DB-OTHER-F/SKGUARD-T/QDBGETMQO-MSGMCH3601 WHEN EXECUTING
PTF ( Program Temporary Fixes ) Cover letter
OSP-DB-OTHER-F/SKGUARD-T/QDBGETMQO-MSGMCH3601 WHEN EXECUTING
Pre/Co-Requisite PTF / Fix List
REQ LICENSED PTF/FIX LEVEL
TYPE PROGRAM RELEASE NUMBER MIN/MAX OPTION
---- -------- --------- ------- ------- ------
PRE 5770999 V7R3M0 MF63858 00/00 0000
PRE 5770999 V7R3M0 MF62223 00/00 0000
PRE 5770999 V7R3M0 MF60955 00/00 0000
CO 5770999 V7R3M0 MF63731 00/00 0000
CO 5770999 V7R3M0 MF61542 00/00 0000
CO 5770999 V7R3M0 MF61286 00/00 0000
CO 5770999 V7R3M0 MF61258 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
-----------------------------------------------
Jobs running SQL statements fail with MSGMCH3601 F/SkGuard
STMT/0013E8 T/QDBGETMQO STMT/2940. This is produced when an
internal structure (an SkGuard) reaches a limit of approximately
65 million active instances. Given some combinations of index
keys and query predicates, the SQL statistics engine may leak a
reference to these internal structures. Over time as queries are
optimized, the leak may cause the internal limit to be reached
and prevent any further SQL activity.
CORRECTION FOR APAR MA46720 :
-----------------------------
This fix eliminates the resource leak and prevents SQL activity
from halting due to the system reaching its internal limit.
CIRCUMVENTION FOR APAR MA46720 :
--------------------------------
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
-------------- ------------------------------------------------------------
MF63891 LIC-DB Internal Maintenance
MF63797 LIC-DB-OTHER-PERFM Query runs slowly because it uses MTI ins
MF63732 LIC-DB-OTHER-PERFM Improved optimization time for queries wi
MF63729 OSP-DB-OTHER-PERFM INEFFICIENT MTI USED IN A PLAN
MF62671 LIC-DB-OTHER-PERFM SQL STATEMENT CONTAINING A RCTE IS RE-OPT
MF63726 LIC-DB-OTHER-PERFM Bad record count estimates for certain qu
MF63589 OSP-DB-OTHER-PERFM DATA SKEW IN A JOIN CAUSED A SLOW PLAN TO
MF63453 LIC-DB-PERFM FETCH FIRST ROW query over table runs slowly
MF63409 LIC-DB-OTHER-PERFM IMPROVE DB ESTIMATE
MF63404 OSP-PAR-940XMISC IMPROVE OPTIMIZER RECORD COUNT ESTIMATE OF
MF62719 LIC-DB-OTHER-PERFM I/O statistics estimates cause poor query
MF62598 LIC-DB-OTHER Improve statistic estimates for OLAP queries
MF62036 LIC-DB-OTHER-UNPRED OLAP query with regression function fail
MF62549 LIC-DB-OTHER-PERFM IMPROVE COSTING EVALUATION FOR AUX STORAG
MF62444 OSP-PERFM ESTIMATES IN LARGE IN LIST CONVERSION TREES CAUSIN
MF62437 LIC-DB Handle missing index during predicate checking on pla
MF62235 LIC-DB Improvements to long EKR time tracking
MF61819 LIC-DB Poor record count estimates in complex RRN AND/OR pla
MF61785 LIC-DB-OTHER-PERFM Improved query optimizer costing for tabl
MF61734 LIC-DB-OTHER Temporary storage may leak when running SQL que
MF61663 LIC-DB-OTHER-PERFM SQE query may run slowly when OPTIMIZE FO
MF61574 OSP-LOOP JOB LOOPING IN DBSTMDEXPRTREEADMIN
MF61574 LIC-DB Add QRO hash in optimization trace for AQP/GCM estima
MF61544 LIC-DB-OTHER Query with multiple OLAP functions fails with M
MF61543 LIC-DB-OTHER Increase database random Input/Output initial b
MF61427 LIC-DB-OTHER Failure when query predicate includes some OLAP
MF61285 LIC-DB Offload long EKR estimates found during optimization
MF61257 LIC-DB-OTHER-PERFM Stale column statistics not analyzed duri
MF61257 LIC-DB-OTHER-PERFM Improved column statistics collection for
MF61147 LIC-DB Improve optimizer estimate for partitioned tables wit
MF61147 LIC-DB Estimate improvement for EOA plans with partitioned t
Summary Information
System.............................. | i |
Models.............................. | |
Release............................. | V7R3M0 |
Licensed Program............... | 5770999 |
APAR Fixed.......................... | View details for APAR MA46720 |
Superseded by:...................... | View fix details for PTF MF66529 |
Recompile........................... | N |
Library............................. | QSYS |
MRI Feature ........................ | NONE |
Cum Level........................... | C8025730 |
IBM disclaims all warranties, whether express or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. By furnishing this document, IBM grants no licenses to any related patents or copyrights. Copyright © 1996,1997,1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 IBM Corporation. Any trademarks and product or brand names referenced in this document are the property of their respective owners. Consult the Terms of use link for trademark information.
Document information
More support for:
i family
Software version: V7R3M0
Operating system(s): OS/400
Reference #: MF64300
Modified date: 03 November 2017