Assign additional processing threads to enable processing of timed out aggregation messages in the AggregateReply node.
By default the AggregateReply node uses a single thread to process timed out aggregation messages. In scenarios where a high volume of messages are expected to timeout, a backlog of messages can accumulate on the SYSTEM.BROKER.AGGR.QueuePrefix.TIMEOUT queue. Follow this task to assign additional processing threads for timeout processing in the AggregateReply node.
You can configure the number of threads that are used to process timeout messages by setting the Number of timeout threads property of the associated Aggregation policy.