[infinispan-issues] [JBoss JIRA] (ISPN-4404) The coordinator leaving the cluster should not cancel a pending state transfer

[Dan Berindei (JIRA)]

Dan Berindei created ISPN-4404:
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             Summary: The coordinator leaving the cluster should not cancel a pending state transfer
                 Key: ISPN-4404
                 URL: https://issues.jboss.org/browse/ISPN-4404
             Project: Infinispan
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: Core, State Transfer
    Affects Versions: 6.0.2.Final
            Reporter: Dan Berindei
            Assignee: Dan Berindei
             Fix For: 7.0.0.Final


When the cluster coordinator changes or a merge view is received, the new coordinator tries to reconcile the cache topologies of the different partitions and cancels any state transfer in progress.

But most of the time, the coordinator changing doesn't mean that there are multiple partitions, just that the old coordinator died. In that case there is a single cache topology, so there is nothing to reconcile and no reason to cancel the pending ST.

We can't rely on the new coordinator receiving a MergeView, because the old coordinator might have received a MergeView and died soon afterwards.



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