[jira] [Moved] (CASSANALYTICS-50) [Analytics] Add support for vnodes

["Yifan Cai (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANALYTICS-50?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yifan Cai moved CASSANDRA-20075 to CASSANALYTICS-50:
----------------------------------------------------

    Component/s: Reader
                 Writer
                     (was: Analytics Library)
        Impacts:   (was: None)
            Key: CASSANALYTICS-50  (was: CASSANDRA-20075)
       Platform:   (was: All)
        Project: Apache Cassandra Analytics  (was: Apache Cassandra)

> [Analytics] Add support for vnodes
> ----------------------------------
>
>                 Key: CASSANALYTICS-50
>                 URL: https://issues.apache.org/jira/browse/CASSANALYTICS-50
>             Project: Apache Cassandra Analytics
>          Issue Type: Improvement
>          Components: Reader, Writer
>            Reporter: James Berragan
>            Assignee: Andrew Johnson
>            Priority: Normal
>          Time Spent: 4h 50m
>  Remaining Estimate: 0h
>
> Analytics currently assumes 1 token per node, but most people in the community use vnodes by default. We should add support for vnodes, at the most basic level we can improve to issue a Spark task per vnode range. After that optimizations can be added to more intelligently merge contiguous ranges, or sort tasks to avoid the Spark JVM connecting to the entire cluster.



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