[jboss-jira] [JBoss JIRA] Created: (JGRP-1341) BARRIER: block only multicast, not unicast messages

[Bela Ban (JIRA)]

BARRIER: block only multicast, not unicast messages
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                 Key: JGRP-1341
                 URL: https://issues.jboss.org/browse/JGRP-1341
             Project: JGroups
          Issue Type: Task
            Reporter: Bela Ban
            Assignee: Bela Ban
             Fix For: 2.12.2, 3.0


BARRIER is used by the state transfer protocols, to get the digest and the state atomically. However, the digest only keeps track of multicast (=group) messages, so we don't need to block unicast messages !
This would help us in STREAMING_STATE_TRANSFER: even though we block the BARRIER, the state chunks sent from the state provider to the state requester (when use_default_transport=true) will *not* get blocked with this change !

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