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Posted to issues@ratis.apache.org by "Rui Wang (Jira)" <ji...@apache.org> on 2021/01/27 18:38:00 UTC

[jira] [Created] (RATIS-1298) Support Leaner/Non-voting member in Ratis

Rui Wang created RATIS-1298:
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             Summary: Support Leaner/Non-voting member in Ratis
                 Key: RATIS-1298
                 URL: https://issues.apache.org/jira/browse/RATIS-1298
             Project: Ratis
          Issue Type: New Feature
            Reporter: Rui Wang
            Assignee: Rui Wang


It's time to add the non-voting member, or leaner that is proposed in Raft thesis 4.2.1 (you can find a copy at [1]).

The leaner is useful to maintain high availability when new servers join Raft ring (details at thesis 4.2.1). For Ozone SCM HA effort, we have also discussed the possibility to utilize leaner as the tool to replace SCM nodes online.


[1]: https://github.com/ongardie/dissertation



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