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MF66920 - OSP-DB-OTHER-WAIT FILE DESTROYED WHILE THERE IS STILL SOME O

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

OSP-DB-OTHER-WAIT FILE DESTROYED WHILE THERE IS STILL SOME O


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
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including programs that circumvent control technology designed to limit
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for future PTFs.  By applying this PTF you authorize and agree to the
foregoing.

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REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
We have background tasks that we use within the operating system
to make sure we control the order in which certain metadata we
keep for objects at the OS level are written to disk. We do this
for object recovery purposes in the event there is some kind of
system interruption/outage from which objects need to be
recovered. In this case, it looks like a file was destroyed
while there was still some outstanding work being done on it's
behalf in one of these background tasks and the timing of
everything caused the background task to be stuck in a state
where he will never be woken up so that he can send a response
to other jobs that he has completed his work. So, those other
jobs sit and wait for a confirmation that never comes.

we'll introduce some code changes that 1) may reduce the
likelihood of the occurrence of this problem, and 2) leave some
additional diagnostics for us to look at when it does occur.

CORRECTION FOR APAR MA48009 :
-----------------------------
some code changes that 1) may reduce the likelihood of the
occurrence of this problem, and 2) leave some additional
diagnostics for us to look at when it does occur.

CIRCUMVENTION FOR APAR MA48009 :
--------------------------------
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
--------------  ------------------------------------------------------------
   MF66230      SQL-RUN-WAIT APPLICATION JOB DOESN'T END
   MF61783      LIC-DB-OTHER-F/DBPMRESOURCELIBRARY-T/QDBGETMQO-MSGMCH3601 MS

Summary Information

System..............................i
Models..............................
Release.............................V7R3M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA48009
Superseded by:......................
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C1098730


IBM i Support

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Document Information

Modified date:
17 April 2021