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Posted to dev@hive.apache.org by "Venki Korukanti (JIRA)" <ji...@apache.org> on 2014/08/05 23:25:12 UTC

[jira] [Commented] (HIVE-7492) Enhance SparkCollector

    [ https://issues.apache.org/jira/browse/HIVE-7492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14086783#comment-14086783 ] 

Venki Korukanti commented on HIVE-7492:
---------------------------------------

RB link: https://reviews.apache.org/r/24342/

> Enhance SparkCollector
> ----------------------
>
>                 Key: HIVE-7492
>                 URL: https://issues.apache.org/jira/browse/HIVE-7492
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>            Reporter: Xuefu Zhang
>            Assignee: Venki Korukanti
>         Attachments: HIVE-7492-1-spark.patch
>
>
> SparkCollector is used to collect the rows generated by HiveMapFunction or HiveReduceFunction. It currently is backed by a ArrayList, and thus has unbounded memory usage. Ideally, the collector should have a bounded memory usage, and be able to spill to disc when its quota is reached.



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