[jboss-jira] [JBoss JIRA] (JGRP-1641) RSVP: passing up a message batch with some RSVP messages causes incorrect ordering

[Bela Ban (JIRA)]

Bela Ban created JGRP-1641:
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             Summary: RSVP: passing up a message batch with some RSVP messages causes incorrect ordering
                 Key: JGRP-1641
                 URL: https://issues.jboss.org/browse/JGRP-1641
             Project: JGroups
          Issue Type: Bug
            Reporter: Bela Ban
            Assignee: Bela Ban
             Fix For: 3.3.1, 3.4


If we have a batch of messages 5-10 and message 7 is tagged as RSVP, then the logic in RSVP.up(MessageBatch) will do the following:
* Iterate through the batch
  * If a message is marked as RSVP: remove it and pass it up (msg 7)
* The pass the batch up
* This means we'll pass up message 7 first, then messages 5,6,8,9,10
--> Incorrect order

SOLUTION:
* We cannot pass up RSVP messages directly
* Instead, remember the RSVP IDs of the messages in the batch which were marked as RSVP
* When done, send an RSVP response for each of these IDs

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