PM89440: MDB WORK QUEUED TO A SERVANT THAT IS TERMINATING DESPITE APPROPRIATE ENVIRONMENT VARIABLE SETTINGS.

Fixes are available

APAR status

Closed as program error.

Error description

With the following settings:
.
server_use_wlm_to_queue_work=0
server_work_distribution_algorithm=2
control_region_timeout_delay=<value greater than zero>
.
it's expected that no new work will be queued to a servant
terminating due to a timeout during the delay period.  However,
users may see new MDB requests being routed to the terminating
servant even if other servants are available.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server V7.0, V8.0, and V8.5 for z/OS        *
****************************************************************
* PROBLEM DESCRIPTION: Requests should not be queued to a      *
*                      WebSphere Application Server for z/OS   *
*                      servant that is in the timeout delay    *
*                      period.                                 *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
When running with server_use_wlm_to_queue_work = 0,
control_region_timeout_delay set greater than zero and
server_work_distribution_algorithm=2, requests timeout
because they were queued to a servant that was in the
timeout delay period. A servant that will be abended after
the timeout delay period should not be given any new work.
BBOO0327I MDB Plan "A" REQUEST TIMEOUT:
(0000):(FFFF6521):(00020005):(00000000):():
(2013/03/21 15:03:02.592877):
(2013/03/21 15:03:02.610996):():(mdbclass):
(mdbrequest):(Local to this Server):():():
(x04)

Problem conclusion

Changed the code to skip queuing new requests to servants that
are in the timeout delay period.

APAR PM89440 is currently targeted for inclusion in WebSphere
Application Server Fix Packs 7.0.0.31, 8.0.0.8, and 8.5.5.1.

Please refer to URL:
//www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
for Fix Pack availability.

Temporary fix

Comments

APAR Information

APAR number
PM89440
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-05-21
Closed date
2013-07-08
Last modified date
2014-02-05

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
WEBSPHERE FOR Z
Fixed component ID
5655I3500

Applicable component levels

R700 PSY UI13725
UP14/01/11 P F401

Fix is available

Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
11 January 2022

Tips

PM89440: MDB WORK QUEUED TO A SERVANT THAT IS TERMINATING DESPITE APPROPRIATE ENVIRONMENT VARIABLE SETTINGS.

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

R700 PSY UI13725

Fix is available

Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

Document Information

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