How do I resolve the error "Re-execute limit reached..."?

Answer

On Demand Consulting
Author: Sila Kissuu

In general, this error occurs in exceptional situations within the Event Manager , such as a "queue full condition" of the monitor event queue.?

The Event Manager is responsible for scheduling and driving the execution of work in Process Server/Process Center including execution of Business Process Definitions(BPDs), invocation of BPD system task implementations and BPD timer events. This is accomplished via Event Manager tasks. The diagram below illustrates how the Event Manger processes incoming messages/events:


When exceptions occur during processing failed tasks are queued up for re-execution to mitigate the exception. The default number of tries is 5. Default runtime configuration settings for the Event Manger can be found in the 80EventManager.xml.
NOTE: Do not directly edit this file but rather use the 100Custom.xml file to adjust settings (see the IBM BPM Knowledge Center for more information on how to change configuration properties). After 5 failed attempts to re-try a task is put on hold and flagged in the database thus making it eligible to be rescheduled to be run in the future with the BPMReplayOnHoldEMTasks command. While on hold the associated process instance might stop responding.

The "Re-execute limit reached" error has been observed in a number of scenarios including:

• Monitor events being?generated at a rate faster than the Event Manager can consume and process.?

• The Event Manager in the destination system?not being paused during migration of?process instances.