[jboss-jira] [JBoss JIRA] Created: (JGRP-1061) FLUSH: asymmetric merge fails

[Bela Ban (JIRA)]

FLUSH: asymmetric merge fails
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                 Key: JGRP-1061
                 URL: https://jira.jboss.org/jira/browse/JGRP-1061
             Project: JGroups
          Issue Type: Bug
            Reporter: Bela Ban
            Assignee: Bela Ban
             Fix For: 2.8


A: {B,A,C}
B: {B,C}
C: {B,C}

B and C have the same view, but A has a different (older) view which still includes B and C

The new merge now determines that the partition coordinators for the merge are B and A.

When FLUSH is enabled, before handling the merge request A tries to flush {A,B,C} and B tries to flush {B,C}. The latter works, but the former fails as A cannot communicate with B and C !

SOLUTION: the partition for A needs to be {A} and not {B,A,C}. 

Is this possible in all cases, or can we NOT prevent merging of overlapping partitions ? (Then flush would always fail !)


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