What is Trigger Queue Capacity and Refill Level?

The Integration Server contains a trigger document store in which it saves documents waiting for processing. The Integration Server assigns each trigger a queue in the trigger document store. A document remains in the trigger queue until the server determines which trigger condition the document satisfies and then executes the service specified in that condition. You can determine the capacity of each trigger’s queue in the trigger queue. The Capacity indicates the maximum number of documents that the Integration Server can store for that trigger. You can also specify a Refill level to indicate when the Integration Server should retrieve more documents for the trigger. The difference between the Capacity and the Refill level determines up to how many documents the Integration Server retrieves for the trigger from the Broker. For example, if you assign the trigger queue a Capacity of 10 and a Refill level of 4, the Integration Server initially retrieves 10 documents for the trigger. When only 4 documents remain to be processed in the trigger queue, the Integration Server retrieves up to 6 more documents. If 6 documents are not available, the Integration Server retrieves as many as possible.

In the Properties panel, under Trigger queue, in the Capacity property, type the maximum number of documents that the trigger queue can contain. The default is 10.3 In the Refill level property, type the number of unprocessed documents that must remain in this trigger queue before the Integration Server retrieves more documents for the queue from the Broker. The default is 4. The Refill level value must be less than or equal to the Capacity value.