PK77072: IMPORTANT MAINTENANCE FOR THE WEBSPHERE MQ RESOURCE ADAPTER

Fixes are available

APAR status

Closed as program error.

Error description

This APAR updates the WebSphere MQ resource adapter shipped with
WebSphere Application Server to 7.0.0.1-k700-L081114
*
ADDITIONAL SYMPTOMS/KEYWORDS:
When a SVRCONN channel ends that is using WebSphere MQ Client
for Java:
DUMP TITLE=CSQ1,ABN=5C6-00D4F002,U=CSQ1CHIN,C=L8200.600.MMC
-CSQMMTP1,M=CSQGFRCV,LOC=CSQMLPLM.CSQMMTP1+08D2
  followed by
DUMP TITLE=CSQ1,ABN= 5C6-00E7014F,C=L8200.600.CHIN
,LOC=*.CSQXADPM+01F30
.
ABEND5C6 ABENDS5C6 5C6 S5C6 S05C6 CSQMMTP1 00D4F002

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  Users of WebSphere Application Server V7.0  *
*                  using WebSphere MQ as a messaging provider  *
****************************************************************
* PROBLEM DESCRIPTION: This APAR updates the resource adapter  *
*                      contained in WebSphere Application      *
*                      Server to include WebSphere MQ fixes    *
*                      that are part of WebSphere MQ fix pack  *
*                      7.0.0.1                                 *
****************************************************************
* RECOMMENDATION:  All users of WebSphere MQ as a messaging    *
*                  provider for WebSphere Application Server   *
*                  V7.0 are recommended to apply this APAR.    *
****************************************************************
The version of the WebSphere MQ resource adapter contained in
WebSphere Application Server fix pack 7.0.0.1
(7.0.0.0-k000-L081015.2) does not address the following
WebSphere MQ issues (contained in WebSphere MQ fix pack
7.0.0.1) that can affect users of the WebSphere MQ messaging
provider within WebSphere Application Server:
- WebSphere MQ reference 127121:
  A build-up of connections within a WebSphere MQ queue manager
  can occur when using message-driven bean applications with
  activation specifications. This can lead to the maximum
  number of connections within the queue manager being
  utilized, and the endpoint stopping with a CWWMQ0045E
  error message.
  The application server must be restarted to free the
  existing connections before applications can reconnect to
  the queue manager.
- WebSphere MQ reference 128018:
  A build-up of memory usage within WebSphere Application
  Server is seen, possibly resulting in OutOfMemoryError
  exceptions being thrown. A heapdump shows a large amount of
  memory used by com.ibm.mq.jms.MQXAConnection objects.
  This occurs because each time a WebSphere MQ connection
  (in a WebSphere Application Server connection pool) is used
  to access a temporary queue, a reference to the queue
  is stored within the connection. These references are not
  cleaned up correctly by the WebSphere MQ resource adapter.
- WebSphere MQ reference 124523:
  The open input count of a queue within WebSphere MQ
  grows each time a WebSphere Application Server
  listener port is stopped and started using the administrative
  console. This occurs as a result of the following
  exception within the WebSphere MQ resource adapter:
  javax.jms.IllegalStateException: ServerSessionPool closed
  at com.ibm.ejs.jms.listener.ServerSessionPool.
                   getServerSession(ServerSessionPool.java:362)
- WebSphere MQ reference 126783:
  When an endpoint for a message-driven bean application, using
  an activation specification, is paused the following
  exception occurs within the WebSphere MQ resource adapter:
  java.lang.RuntimeException: javax.resource.spi.work.
    WorkCompletedException: Unexpected exception from work
    (id=1468), error code: 0
  at com.ibm.ejs.j2c.work.WorkProxy.run(WorkProxy.java:459
  Caused by: java.util.NoSuchElementException
- WebSphere MQ reference 126162:
  When a connection factory or activation specification is
  configured using transport type "Bindings then client" on
  WebSphere Application Server for z/OS or iSeries, connections
  fail when the native libraries required to perform
  a bindings connection are not available - even though a
  network connection to the queue manager can be created.
  The WebSphere MQ reason code in the error is:
  2029 - MQRC_ADAPTER_CONN_LOAD_ERROR

Problem conclusion

This APAR updates the WebSphere MQ resource adapter shipped
with WebSphere Application Server to WebSphere MQ build level
7.0.0.1-k000-L081114

Please see the following document for important information
for users of the WebSphere MQ messaging provider with
WebSphere Application Server, including how to check the
version of the resource adapter used by your application server
http://www.ibm.com/support/docview.wss?rs=171&uid=swg21316899

Temporary fix

Comments

APAR Information

APAR number
PK77072
Reported component name
PLAT MSG COM
Reported component ID
620800101
Reported release
300
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2008-12-08
Closed date
2008-12-08
Last modified date
2009-06-30

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
PLAT MSG COM
Fixed component ID
620800101

Applicable component levels

R300 PSY
UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
23 October 2021

Tips

PK77072: IMPORTANT MAINTENANCE FOR THE WEBSPHERE MQ RESOURCE ADAPTER

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

R300 PSY

Document Information

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