[jboss-jira] [JBoss JIRA] (JGRP-1563) UNICAST2: first-message-lost problem

[Bela Ban (JIRA)]

Bela Ban created JGRP-1563:
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             Summary: UNICAST2: first-message-lost problem
                 Key: JGRP-1563
                 URL: https://issues.jboss.org/browse/JGRP-1563
             Project: JGroups
          Issue Type: Bug
            Reporter: Bela Ban
            Assignee: Bela Ban
             Fix For: 3.2.6, 3.3


If A sends its first message A#1 to B, but the network drops A#1, B won't be able to receive A#1 unless A sends another message.
Even the stable task won't help: as B only sends stable messages to connected members (and A isn't), it will never send a stable message to A.

SOLUTION:
- Use acking for the first message
- Continue sending the first message until it has been acked, or a configurable time period has elapsed
- Note that we cannot cancel this task based on *membership* (view changes), as unicast messages can be sent to members outside of our view

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