PI66664: Application edition validation with inconsistent policies breaks affinity on the default edition

Fixes are available

APAR status

Closed as program error.

Error description

Application edition validation with inconsistent
affinity policies breaks affinity on the default edition.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  Users of IBM WebSphere Application Server   *
*                  WAS ND edition - Virtual Enterprise/IM      *
*                  Component - using application edition       *
*                  validation.                                 *
****************************************************************
* PROBLEM DESCRIPTION: Application&#160;edition&#160;validation&#160;with&#160;inc *
*                      onsistent&#160;affinity policies&#160;may         *
*                      break&#160;affinity&#160;on requests using active *
*                      editions                                *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
When using application editions and performing validation of a
new edition, the configuration of the multiple editions must be
consistent.  However, mistakes are sometimes made that can cause
problems for the active edition. For example, if the affinity
policy of the validation edition is not consistent with the
affinity policy of an active edition it may cause affinity to be
broken for requests to the active edition. This is because the
validation affinity policy may be selected when processing a
request rather than the affinity policy of the active edition.
When application configuration is consistent, as it should be,
this will not create a problem. However, if application
configuration is not consistent it may cause problems such as
broken affinity for requests destined for an active edition.

Problem conclusion

The ODR request processing code has been changed to evaluate the
edition rules earlier in the request flow such that the affinity
policy that is considered is the affinity policy for the edition
that is selected based upon the application edition rules. This
will provide some protection for requests destined for active
editions of the application from being impacted by inconsistent
configuration when a new application edition is being validated.
The customer must still correct any inconsistencies in
configuration between the validation application edition and the
active application editions prior to rollout of the validation
edition unless the changes are intended.  Failure to validate
consistent configuration may cause unexpected results when the
new edition is activated.

The fix for this APAR is currently targeted for inclusion in fix
pack 8.5.5.11.  Please refer to the Recommended Updates page for
delivery information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

Temporary fix

Ensure that the configuration is consistent for multiple
editions of the application prior to performing validation on a
new edition.

Comments

APAR Information

APAR number
PI66664
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-07-28
Closed date
2016-09-06
Last modified date
2016-09-06

APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name
WEBS APP SERV N
Fixed component ID
5724H8800

Applicable component levels

R850 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
04 May 2022

Tips

PI66664: Application edition validation with inconsistent policies breaks affinity on the default edition

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name

Fixed component ID

Applicable component levels

R850 PSY

Document Information

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