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Support Article

Agent not processing though exceptions handled in agent activity



After upgrading Pega Platform 7.3.1 to Pega Platform 8.2.2, agents stop processing though the exceptions are handled in the Agent activity.
A record is created in the agent activity using the RDB-Save method and the Jump condition is added on the step on exception to continue its processing. However, the agent is terminated with an error.

Error Messages

ERROR - Batch activity threw: unable to execute agent: Exception
              at com.pega.pegarules.session.internal.async.agent.QueueProcessor.execute( ~[prprivate.jar:?]
              at ~[prprivate.jar:?]
              at com.pega.pegarules.session.internal.PRSessionProviderImpl.performTargetActionWithLock( ~[prprivate.jar:?]
              at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked( ~[prprivate.jar:?]
              at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked( ~[prprivate.jar:?]
              at ~[prprivate.jar:?]
              at com.pega.pegarules.session.internal.async.Agent.queueBatchActivityForAgent( ~[prprivate.jar:?]
              at com.pega.pegarules.session.internal.async.Agent.queueBatchActivityForAgent( ~[prprivate.jar:?]

Steps to Reproduce

  1. Create a custom agent.
  2. In the Agent activity, save the record using the RDB-Save or OBJ-Save methods.
  3. Add a Jump condition on the step to continue the agent processing on exception.
  4. Insert the same record in to the database which displays the exception.

Root Cause

A defect in Pegasystems’ code or rules.
The Step status failures resulted in agent termination.


Perform the following local-change to avoid agent termination:

Invoke the Activity-Clear-Status before exiting the agent activity.

This feature is implemented in Pega Platform 8.2.5.

Published July 17, 2020 - Updated December 2, 2021

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