APAR status
Closed as program error.
Error description
When messages are put with a DeliveryDelay, using the IBM MQ JMS 2.0 client, the queue manager's delivery delay processor task performs more slowly than expected if messages are not made available to it until after their configured delay interval has been reached.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: This affects users of the JMS 2.0 DeliveryDelay feature Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: A logic error in the queue manager task which performs the processing of messages with a delivery delay meant that messages were not correctly processed in batches when they became eligible. In the worst case scenario, it was possible for the task to enter a state whereby each messages was put and committed individually when its delay interval expired instead of the puts being batched as expected, resulting in a visible backlog of messages on the delivery delay queue.
Problem conclusion
The delivery delay processor task that runs as part of the MQ queue manager when delivery delay is being used has been corrected to apply the intended batching logic. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v8.0 8.0.0.15 v9.0 LTS 9.0.0.10 v9.1 CD TBC. v9.1 LTS 9.1.0.5 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
IT28907
Reported component name
IBM MQ BASE MP
Reported component ID
5724H7251
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-04-24
Closed date
2020-02-28
Last modified date
2020-02-28
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
IBM MQ BASE MP
Fixed component ID
5724H7251
Applicable component levels
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0.0.0","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
28 February 2020