Ted Ross created DISPATCH-744:
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Summary: Reject unsettled deliveries to multicast addresses by
default
Key: DISPATCH-744
URL: https://issues.apache.org/jira/browse/DISPATCH-744
Project: Qpid Dispatch
Issue Type: Improvement
Components: Router Node
Reporter: Ted Ross
Assignee: Ted Ross
Fix For: 1.0.0
This change is intended to address a behavior of the router that might be
considered misleading.
When messages are delivered to an address that has a multicast distribution,
delivery disposition and settlement cannot be tracked because there may be
multiple consumers. Because of this, if a delivery is unsettled, the first
router will settle the message unilaterally and forward it on in a pre-settled
state. The result is that the sender may receive a settled-and-accepted
disposition for a message that was eventually dropped without being delivered
to a consumer.
The solution is to reject deliveries to multicast addresses that are not
already pre-settled by the sender. The rejection shall carry the text:
"Deliveries to a multicast address must be pre-settled".
This behavior shall be the new default behavior. A configuration flag shall be
provided to restore the original behavior.
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