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SI52000 - OSP-DB-PERFM CHANGE SYSLIMTBL PRUNER IMPLEMENTATION

PTF ( Program Temporary Fixes ) Cover letter


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Abstract

OSP-DB-PERFM CHANGE SYSLIMTBL PRUNER IMPLEMENTATION


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
NONE



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 license agreement which
accompanied, or was contained in, the Program for which you are obtaining
the PTF.  You are not authorized to install or use the PTF except as part
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APAR Error Description / Circumvention

-----------------------------------------------
In some environments, the System Limits pruning task which runs
in a low priority QDBSRVnn job can consume an undue amount of
CPU while executing this DELETE SQL statement:

DELETE FROM QSYS2.SYSLIMTBL
WHERE LIMIT_TYPE = 1 AND
LASTCHG NOT IN (SELECT LASTCHG FROM QSYS2.SYSLIMPRNO)

CORRECTION FOR APAR SE57865 :
-----------------------------
The QSYS2.SYSLIMPRNO view contained a union of two OLAP queries.
By splitting the two OLAP queries into individual views, SQE is
able to achieve a much better performance implementation.

CIRCUMVENTION FOR APAR SE57865 :
--------------------------------
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
--------------  ------------------------------------------------------------
   SI51231      osp-db internal maintenance
   SI51231      OSP-DB INTERNAL MAINTENANCE

Summary Information

System.............................. i
Models..............................
Release............................. V7R2M0
Licensed Program............... 5770SS1
APAR Fixed.......................... View details for APAR SE57865
Superseded by:...................... View fix details for PTF SI69833
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... BASE


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Document information

More support for: i family

Software version: V7R2M0

Operating system(s): OS/400

Reference #: SI52000

Modified date: 14 April 2014