Max Pool Size

Specifies the maximum number of Message Driven Beans instantiated at any one point for message handling. 

The polling interval and the MDB pool size (Max Pool Size) can be “tuned” based on the expected volume and frequency of incoming messages. A more frequent polling interval, due to a large number of new messages, will trigger the creation of new threads. The number of threads that can be processed, however, is limited by the MDB pool size. 

When the maximum MDB pool limit is reached, incoming threads are blocked. Increasing the MDB pool size allows more resource adapter threads to send data to the Collaboration. In most cases, the default MDB pool size of 1000 is sufficient. 

An integer indicating the maximum MDB pool size. 

The default configuration is 1000.