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SI65825 - HASM-HA-UNPRED STRCLUNOD HANG

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

HASM-HA-UNPRED STRCLUNOD HANG


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
of a Program for which you have a valid Proof of Entitlement.

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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.

The applicable license agreement may have been provided to you in printed
form and/or may be viewed using the Work with Software Agreements (WRKSFWAGR)
CL command.





APAR Error Description / Circumvention

-----------------------------------------------
STRCLUNOD may hang if going from V7.1 to V7.2, and there is an
administrative domain, and the administrative domain has zero
monitored resource entries.

CORRECTION FOR APAR SE67572 :
-----------------------------
The code correctly checks if there are zero monitored resource
entries.

CIRCUMVENTION FOR APAR SE67572 :
--------------------------------
None.


DESCRIPTION OF PROBLEM FIXED FOR APAR SE67916 :
-----------------------------------------------
There are two problems fixed.

Problem 1.
F/QHACMN-MSGCPDAA01 ADD OF A *USRPRF MRE IN ADMIN DOMAIN MAY
CAUSE A HANG IN THE CLUSTER.

When adding a user profile into administrative domain, if the
profile existed before QRETSVRSEC was changed to a 1, it could
get caught in an area of cluster admin domain code that causes
it to hang.

There will be a code enhancement to handle the condition more
appropriately and not hang.

*Note - As a Best Practice, before adding users into admin
domain, QRETSVRSEC should be set to 1 across all nodes in the
admin domain and ALL user profiles should have a password change
occur (and sign into the OS). After that point, it should be
able to be successfully added into admin domain.

Problem 2.
5770 SP/QCSTADSIMP MOD/CSTADJOINS RC50

When starting a cluster node with administrative domain, and the
starting node has more monitored resources than the active
cluster, and the administrative domain is inactive, then the
administrative domain job on the starting node may end.

CORRECTION FOR APAR SE67916 :
-----------------------------
Problem 1.

The code is changed so the starting node checks if the active
cluster node that is to send the starting node a message has
actually sent the message instead of waiting indefinitely for
the message.

Problem 2.

The starting node now refreshes its list of monitored resources
if any monitored resources are added or removed.

CIRCUMVENTION FOR APAR SE67916 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


On each node in the cluster, end clustering, apply the fix, and then
start clustering.  It is not necessary to update all nodes at the same
time, however, any node without the fix will continue to be a potential
source of the problem.

********************************************************************
THE FOLLOWING ARE SUPERSEDED SPECIAL INSTRUCTIONS. IF THE SUPERSEDED
PTF HAS ALREADY BEEN APPLIED AND ITS SPECIAL INSTRUCTION FOLLOWED,
IT IS NOT NECESSARY TO FOLLOW THAT SPECIAL INSTRUCTION AGAIN.
********************************************************************

SPECIAL INSTRUCTIONS FOR SUPERSEDED PTF SI64108 :
=================================================

To activate these fixes, on each node in the cluster, end clustering,
apply the fix, and
then start clustering.  It is not necessary to update all nodes at the
same time,
however, any node without the fix will continue to be a potential
source of the problem.

If you have had the reported problem with WRKCADMRE or displaying Admin
Domain Monitored
Resource Entries (MREs) with WRKCLU, or are unsure that you have the
problem, then it is
recommended that you activate the fixes by:
1.  End clustering on each node in the cluster.
2.  Apply this fix if not already applied.
3.  Run "CALL PGM(QSYS/QCSTADFIX)" on each node.
4.  Start clustering on each cluster node.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   SI64873      HASM-HA-MSGCPI93B2 5770 SP/QCSTADSIMP MOD/CSTADJOINS RC56 IN
   SI64108      HASM-HA-F/QCAIFLD-T/QSYUPADOH-MSGCPD221E ADDCADMRE FOR A USE
   SI64108      INCORROUT MSGCPF3C74 in WRKCADMRE

Summary Information

System..............................  i
Models..............................  
Release.............................  V7R3M0
Licensed Program....................  5770SS1
APAR Fixed..........................  View details for APAR SE67572
View details for APAR SE67916

Superseded by:......................  View fix details for PTF SI79856
Recompile...........................  N
Library.............................  QSYS
MRI Feature ........................  NONE
Cum Level...........................  C8025730


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Document Information

Modified date:
19 May 2022