Fixes are available
WebSphere MQ V7.0 Fix Pack 7.0.1.12
Fix Pack 7.1.0.5 for WebSphere MQ V7.1
WebSphere MQ V7.5 Fix Pack 7.5.0.4
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21
APAR status
Closed as program error.
Error description
WMQ V701 MDBs which have been registered against a shared queue fail to get messages and appear hung after the coupling facility associated with the queue sharing group becomes unavailable.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: This issue affects users of the WebSphere MQ Classes for JMS who are attempting to get messages from a Shared Queue. This includes users of: - The WebSphere MQ V7.0.1, V7.1, V7.5 Classes for JMS - The WebSphere MQ V7.0.1, V7.1, V7.5 Resource Adapter. - The WebSphere Application Server V7.0 and V8.0 WebSphere MQ messaging provider. - The WebSphere Application Server V6.1 WebSphere MQ messaging provider who have configured the WebSphere variable MQ_INSTALL_ROOT to point to a WebSphere MQ V7.0.1, V7.1, V7.5 installation. Platforms affected: All Distributed (iSeries, all Unix and Windows) +Java +Java zOS **************************************************************** PROBLEM SUMMARY: A shared queue is a type of local queue whose messages can be accessed by one or more queue managers that are in a queue-sharing group (QSG). Queue Managers in the QSG communicate with each other by means of a coupling facility (CF) that stores the shared queues. When a Message-Driven Bean (MDB) was registered against a shared queue and the coupling facility hosting the shared queue failed, the MDB application was not notified of the failure. It remained running and no error messages were written to the Java trace or application server logs. The MDB application was also unable to process any additional messages and appeared to be in a hung state.
Problem conclusion
The WebSphere MQ Classes for JMS have been modified to notify any listeners registered against a shared queue that the coupling facility has failed. An MQRC_CF_STRUC_FAILED error is returned to the application and in the case of MDBs the MDB application will enter a stopped state. The MQRC_CF_STRUC_FAILED error and associated java stack will be written to the Java trace and application server log. After the coupling facility has been recovered, MDB applications that make use of an activation specification will need to be restarted manually in order to restore message processing. MDB applications deployed in WebSphere Application Server that have been configured to use a listener port can recover automatically if the following conditions are met: 1) The coupling facility has been successfully recovered. 2) The maximum number of retry attempts (MAX.RECOVERY.RETRIES) configured on the message listener service have not yet been exceeded. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v7.1 7.1.0.5 v7.5 7.5.0.4 v7.0 7.0.1.12 The latest available maintenance can be obtained from 'WebSphere MQ Recommended Fixes' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037 If the maintenance level is not yet available information on its planned availability can be found in 'WebSphere MQ Planned Maintenance Release Dates' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IV50451
Reported component name
WMQ LIN X86 V7
Reported component ID
5724H7224
Reported release
701
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-10-07
Closed date
2013-11-29
Last modified date
2013-11-29
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
WMQ LIN X86 V7
Fixed component ID
5724H7224
Applicable component levels
R701 PSY
UP
Document Information
Modified date:
28 April 2022