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

[Bela Ban (JIRA)]

     [ https://issues.jboss.org/browse/JGRP-1563?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban resolved JGRP-1563.
----------------------------

    Resolution: Done


Fixed by resending the first message in the retransmission task if the connection is not marked as established
                
> 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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