Fixes are available
APAR status
Closed as program error.
Error description
UCA is sometimes triggered more than once . When you have a Message Intermediate Event attached to a human service activity and in addition "Durable Subscription" is checked, the attached UCA is sometimes triggered more than once.
Local fix
Problem summary
The current code processes incoming durable messages in two ways: - during processing of the inbound message, it delivers all durable messages to all matching BPDs. - in addition, it schedules a separate task to check whether additional subscribers qualify for that message. This second task intends to only deliver messages that have not yet been delivered. Since the first and the second message delivery happen asynchronously w/o guaranteed time order, sometimes they overlap in such a way that the second delivery is executed before the first delivery. In these cases, the message may be delivered twice.
Problem conclusion
Skip the first message delivery. Deliver durable messages only once with a separate task.
Temporary fix
iFix for 7.5.1.1 is available on Fix Central, search for APAR JR47143 at http://www.ibm.com/support/fixcentral/ iFix for 8.0.1.1 is available on Fix Central, search for APAR JR47143 at http://www.ibm.com/support/fixcentral/ Fix is also targetted for inclusion in next fixpack for BPM V7.5.1, BPM 8.0.1, BPM 8.5.0
Comments
APAR Information
APAR number
JR47143
Reported component name
BPM STANDARD
Reported component ID
5725C9500
Reported release
751
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-07-03
Closed date
2013-10-09
Last modified date
2013-10-09
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
BPM STANDARD
Fixed component ID
5725C9500
Applicable component levels
R751 PSY
UP
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSFTDH","label":"IBM Business Process Manager Standard"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.5.1","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
07 January 2022