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From "Joshua McKenzie (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6246) EPaxos
Date Wed, 16 Aug 2017 12:33:02 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6246?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16128718#comment-16128718
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Joshua McKenzie commented on CASSANDRA-6246:
--------------------------------------------

bq. I'm looking for a solution to implement a reference counter based on Cassandra.
bq. Dear community, do you have any idea?
Please take questions to the user mailing list if you haven't already. JIRA is for discussion
concerning development of Cassandra internals.

> 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: 4.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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