Threading behavior and configuration in SI

[tbowens]

My original posting from Friday seems to have vanished, so here it goes again.

I am trying to find out how to configure the maximum number of threads for the Spring Integration (SI) message-bus.

Specifically, what is the default number of pooled threads used by the message bus and how do I configure the max number of threads spawned by SI?

One of our teammates has the following question:

If you put a hundred messages on a queue (via an SI channel) does SI spawn a hundred threads to process them or do they handle them sequentially or does it create a number of threads up to the default setting and process that way?

Thanks!

[iwein]

You can define a TaskExecutor bean and give it as a reference to the <poller/> element. If you reuse the same taskExecutor everywhere controlling the number of total threads is trivial.

To answer you team mate's question: I don't know the exact default from the top of my head. But if you want to can create a TaskExecutor that does it the exact way you like.

What would be the way you expect SI to behave by default?