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From "Robert Stupp (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-6246) EPaxos
Date Mon, 21 Dec 2015 20:28:46 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-6246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Stupp updated CASSANDRA-6246:
------------------------------------
    Labels: messaging-service-bump-required  (was: )

> EPaxos
> ------
>
>                 Key: CASSANDRA-6246
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6246
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Jonathan Ellis
>            Assignee: Blake Eggleston
>              Labels: messaging-service-bump-required
>             Fix For: 3.x
>
>
> One reason we haven't optimized our Paxos implementation with Multi-paxos is that Multi-paxos
requires leader election and hence, a period of unavailability when the leader dies.
> EPaxos is a Paxos variant that requires (1) less messages than multi-paxos, (2) is particularly
useful across multiple datacenters, and (3) allows any node to act as coordinator: http://sigops.org/sosp/sosp13/papers/p358-moraru.pdf
> However, there is substantial additional complexity involved if we choose to implement
it.



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