Clustergin or non-clustering?
Paging or non-paging?
What revision of branch-2-2_eap?
There is an issue with LargeMessage on clustering that I'm currently fixing. (it's not on Branch_2_2_EAP yet).
btw, is it possible that the message system will OOM if i turn paging off and sending large message to the message system
Large messages are stored on a file, they don't take any memory.
I woul need a test replicating it if you think there's an issue.
I would need to see some code... maybe you are not acking the messages?