jboss ejb+jms redelivery time

Hi All,

I need some clarification on the following case:

I have a MDB in my application which is triggered as soon as there is a message in associated Queue and it starts processing... This is a batch processing logic so, it is taking long time (nearly 45min). In the mean time, JMS server is assuming MDB is not-responding back and trying to resend the same message.
I observed this is happening after every 30min... I thought this could be a configuration and searched for this but, I didn't find any related config. parameter.

Is there any way to set the higher value for redelivery time?

Any pointers would be highly appreciated.

Thanks,
Suresh