Requirements for Using the Duplicate Event Detection Feature

Running Business Processes and Composite Applications : Administering webMethods Process Engine : Configuring and Monitoring the Process Engine : Configuring Process Engine Settings : Requirements for Using the Duplicate Event Detection Feature

To use the duplicate detection feature, you must:

Configure the Process Engine Duplicate Event Detection property as described in Configuring Process Engine Settings.

Modify the process model's generated trigger in Software AG Designer as follows:

Set the Exactly Once/Detect Duplicates property to true.

Set the Exactly Once/Document Resolver Service property to wm.prt.duplicate:checkDuplicates, located in the WmPRT package.

Important:

After changing the Exactly Once/Detect Duplicates property for a model's trigger (either subscription or transition), the WmPRT package must be reloaded. To reload the package, open the webMethods Integration Server Administrator, open Packages > Management, and click the WmPRT reload icon in the Reload column.

Additionally, to use the duplicate detection feature, the process model versions must meet these requirements:

A UUID, a unique identifier that identifies the published document, must be present in the document being published (for example: all documents published by webMethods Broker contain a UUID).

All publishable documents, including process transition documents, must be non-volatile documents.

The process must have volatile tracking disabled and volatile transition documents disabled.

If you want to be able to resubmit a failed process, the model must log all steps and enable each step for resubmission.

Note:

When a process has the Optimize Locally option enabled, duplicate event detection is limited to the last unacknowledged document.

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