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MF62258 - OSP-DB-JRN Degraded performance due to increased IO and gate

PTF ( Program Temporary Fixes ) Cover letter


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Abstract

OSP-DB-JRN Degraded performance due to increased IO and gate


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

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



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-------
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APAR Error Description / Circumvention

-----------------------------------------------
Running an internal performance benchmark shows performance
degradation due to increased IO and gate contention.

CORRECTION FOR APAR MA45729 :
-----------------------------
Journaled object information was being written to disk too
aggressively. This change reduces the amount of journaled object
information being written.

CIRCUMVENTION FOR APAR MA45729 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


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Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF62039      LIC-DB-JRN-RC2-MSGCPF7091 CPF7091 RC2 NO JOURNAL MENTIONED
   MF61625      LIC-DB-JRN Long journal sync IASP vary on C600 4058
   MF61643      LIC-OTHER-WAIT GATE WAIT WHILE COMMITTING MORE THAN 32K TRAN
   MF59738      LIC-DB-JRN Journal sync points falling too far behind
   MF58565      LIC-DB  Long Journal synchronization step during IASP vary o
   MF58160      OSP- Internal maintenance
   MF57895      OSP- Internal maintenance

Summary Information

System.............................. i
Models..............................
Release............................. V7R2M0
Licensed Program............... 5770999
APAR Fixed.......................... View details for APAR MA45729
Superseded by:...................... View fix details for PTF MF66191
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C6306720


System i Support

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Document information

More support for: i family

Software version: V7R2M0

Operating system(s): OS/400

Reference #: MF62258

Modified date: 29 June 2016