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From "Ted Ross (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DISPATCH-744) Reject unsettled deliveries to multicast addresses by default
Date Thu, 13 Apr 2017 21:10:42 GMT

     [ https://issues.apache.org/jira/browse/DISPATCH-744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Ted Ross resolved DISPATCH-744.
    Resolution: Fixed

> 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
> 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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