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https://issues.apache.org/jira/browse/KUDU-562?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mike Percy updated KUDU-562:
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Parent: KUDU-560
> When a peer is partitioned, it should ask a majority if they still think the
> leader is alive
> --------------------------------------------------------------------------------------------
>
> Key: KUDU-562
> URL: https://issues.apache.org/jira/browse/KUDU-562
> Project: Kudu
> Issue Type: Sub-task
> Components: consensus
> Affects Versions: M4.5
> Reporter: David Alves
> Assignee: Todd Lipcon
>
> If a peer is partitioned from the current leader its election timer will fire
> and it will trigger an election. However this doesn't mean that the leader is
> not well and working and in touch with a majority of peers, it just means
> that the connection between the peer and the leader is down.
> In this case we might fall into a cycle where the peer triggers and election,
> increases the term of some of the other peers, until eventually they reject
> messages from the current leader. The peer's election will be likely lost,
> since the leader has a more up-to-date log, so it's possible that the leader
> gets elected again, in which case this process is repeated.
> If the leader is being hammered enough, meaning it has a more up-to-date log
> than the majority this can go on forever.
> We should make a peer ask a majority if they currently have a leader before
> triggering leader election.
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