B2B Integration 10.4 | Administering and Monitoring B2B Transactions | Service Development Help | Working with webMethods Messaging Triggers | About Message Processing | Serial Processing
 
Serial Processing
 
Serial Processing in a Cluster or Non-Clustered Group of Integration Servers
Serial Triggers Migrated to Integration Server 10.3 or Later from Earlier Versions
In serial processing, Integration Server processes the documents received by a webMethods messaging trigger one after the other. Integration Server retrieves the first document received by the webMethods messaging trigger, determines which condition the document satisfies, and executes the service specified in the webMethods messaging trigger condition. Integration Server waits for the service to finish executing before retrieving the next document received by the webMethods messaging trigger.
For a webMethods messaging trigger with serial processing, Integration Server processes documents in the same order in which the trigger retrieves the documents from the messaging provider. However, Integration Server processes documents for a serial trigger more slowly than it processes documents for a concurrent trigger.
If your webMethods messaging trigger contains multiple conditions to handle a group of published documents that must be processed in a specific order, use serial processing. This is sometimes called ordered service execution. Only triggers that receive messages from webMethods Broker can perform ordered service execution.
When a webMethods messaging trigger receives documents from webMethods Broker, the queue for the serial trigger on the webMethods Broker has a Shared Document Order mode of “Publisher”.
When a webMethods messaging trigger receives documents from Universal Messaging, the durable subscription for a trigger with serial processing is a serial durable subscription. That is, in Universal Messaging Enterprise Manager, the durable subscription for the trigger has the Serial check box selected.

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