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Posted to dev@hive.apache.org by "Chao (JIRA)" <ji...@apache.org> on 2014/10/10 20:55:34 UTC

[jira] [Updated] (HIVE-8276) Separate shuffle from ReduceTran and so create ShuffleTran [Spark Branch]

     [ https://issues.apache.org/jira/browse/HIVE-8276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chao updated HIVE-8276:
-----------------------
    Attachment: HIVE-8276.1-spark.patch

> Separate shuffle from ReduceTran and so create ShuffleTran [Spark Branch]
> -------------------------------------------------------------------------
>
>                 Key: HIVE-8276
>                 URL: https://issues.apache.org/jira/browse/HIVE-8276
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>            Reporter: Xuefu Zhang
>            Assignee: Chao
>         Attachments: HIVE-8276.1-spark.patch
>
>
> Currently ShuffleTran captures both shuffle and reduce side processing. Per HIVE-8118, sometimes the output RDD from shuffle needs to be cached for better performance. Thus, it makes sense to separate shuffle from Reduce and create ShuffleTran class.



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