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From "Sahil Takiar (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HIVE-20032) Don't serialize hashCode when groupByShuffle and RDD cacheing is disabled
Date Fri, 06 Jul 2018 21:58:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-20032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16535353#comment-16535353
] 

Sahil Takiar edited comment on HIVE-20032 at 7/6/18 9:57 PM:
-------------------------------------------------------------

Attaching dummy patch with {{hive.spark.optimize.shuffle.serde}} set to true by default, {{hive.combine.equivalent.work.optimization}}
to false by default, and {{hive.spark.use.groupby.shuffle}} to false, just to see if there
are any HoS test failures (besides explain plan diffs).


was (Author: stakiar):
Attaching dummy patch with {{hive.spark.optimize.shuffle.serde}} set to true by default and
{{hive.combine.equivalent.work.optimization}} to false by default, just to see if there are
any HoS test failures (besides explain plan diffs).

> Don't serialize hashCode when groupByShuffle and RDD cacheing is disabled
> -------------------------------------------------------------------------
>
>                 Key: HIVE-20032
>                 URL: https://issues.apache.org/jira/browse/HIVE-20032
>             Project: Hive
>          Issue Type: Improvement
>          Components: Spark
>            Reporter: Sahil Takiar
>            Assignee: Sahil Takiar
>            Priority: Major
>         Attachments: HIVE-20032.1.patch, HIVE-20032.2.patch
>
>
> Follow up on HIVE-15104, if we don't enable RDD cacheing or groupByShuffles, then we
don't need to serialize the hashCode when shuffling data in HoS.



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