BPM resends automatic ToDo Items without an apparent reason on cluster environment. (Doc ID 1590142.1)

Last updated on OCTOBER 07, 2013

Applies to:

Oracle Business Process Management Suite - Version 10.3.2 to 10.3
Information in this document applies to any platform.

Symptoms

At some point  BPM re-sends ToDo items without any apparent reasons. In some situations this can me manifested as an attempt to execute the same ToDoItem several times or a lock contention on the PTODOITEMS table.

After enabling the cluster debug (see KM Note 1316835.1 ) you can see that the non-master node sometimes erroneously detects that the master node is down,  becomes master node and resends all the pending ToDoItems. In few minutes the master node is visible again, but  problem can repeat several time leading to multiple ToDoItems resend.

 

Changes

 The problem happens on clustered environment only.

Cause

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