[jboss-dev-forums] [Design of Messaging on JBoss (Messaging/JBoss)] - JBossMQ delayed redelivery implementation

[timfox]

I am looking at porting this to JBM. This seems fairly straightforward, however I have a question regarding the JBoss MQ implementation.

AFAICT when internalAddMessage() is called on BasicQueue and the scheduledDelivery attribute is set and in the future then a timeout will be added to actually add the message at a future time.

This will be called when a message is NACKed, which occurs under different situations, in particular when a tx is rolled back.

Looking at the implementation of session.recover() I can see that it always try to redeliver to local consumers first - in which case a redelivery delay *will not* occur.

Is this desired behaviour? I would have thought we want a redelivery delay for transaction rollback *and* session recovery, not just transaction rollback.

Comments?

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