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MF65644 - LIC Improve index performance when writing changes

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC Improve index performance when writing changes


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
PRE  5770999  V7R2M0    MF64444   00/00    0000
PRE  5770999  V7R2M0    MF59989   00/00    0000
PRE  5770999  V7R2M0    MF57926   00/00    0000



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
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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
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
Writing index changes to disk may not take full advantage of
available dasd requests.

CORRECTION FOR APAR MA46962 :
-----------------------------
Additional dasd requests will be used to improve performance
when writing index changes to disk.

CIRCUMVENTION FOR APAR MA46962 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

THIS IS A DELAYED PTF TO BE APPLIED AT IPL TIME.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF59116      LIC-DB-OTHER-UNPRED Index operation fails while writing chan
   MF65367      LIC-DB INDEX SIZE INCREASES AFTER FREQUENT IPLS
   MF64170      LIC-DB-OTHER-PERFM Index prepaging performance improvement
   MF63733      LIC-OTHER-MSGCPF8122 Library damaged when storage limit is r
   MF62813      LIC-DB-OTHER-PERFM Improve performance during final phase of
   MF61567      LIC-OTHER-WAIT Creating a context can cause a hang
   MF61027      LIC-OTHER-PERFM Long disk waits when index first used after
   MF60652      LIC-DB-PERFM Slow index updates during key range estimate
   MF60583      OSP-MSGCPF5109 MSGCPF5109 AND VL06001389
   MF59990      LIC-DB-OTHER-PERFM SQL INDEX USING EXCESSIVE STORAGE
   MF60369      LIC-DB-THREADS-PERFM Hot cache lines during parallel index b
   MF59801      LIC-DB-OTHER Hang or index damage after rebuild
   MF59115      LIC-OTHER GATE LEFT LOCKED AFTER INDEX RECOVERY FAILURE
   MF59104      LIC-DB-JRN-PERFM Improve index journal apply performance
   MF58862      LIC-DB-JRN Index damaged during journal apply
   MF58761      LIC-OTHER-F/IXRADIX4RESETPHYSICALINDEX-T/QTNCMTSP-MSGMCH3203
   MF57934      LIC-DB-PERFM Improve index scaling
   MF59916      LIC-DB Add support for index size tracking

Summary Information

System..............................  i
Models..............................  
Release.............................  V7R2M0
Licensed Program....................  5770999
APAR Fixed..........................  View details for APAR MA46962
Superseded by:......................  View fix details for PTF MF70505
Recompile...........................  N
Library.............................  QSYS
MRI Feature ........................  NONE
Cum Level...........................  C9297720


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Document Information

Modified date:
17 March 2023