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From "Xuefu Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-9561) SHUFFLE_SORT should only be used for order by query [Spark Branch]
Date Fri, 29 May 2015 02:00:46 GMT

     [ https://issues.apache.org/jira/browse/HIVE-9561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xuefu Zhang updated HIVE-9561:
------------------------------
    Fix Version/s:     (was: spark-branch)
                   1.2.0

> SHUFFLE_SORT should only be used for order by query [Spark Branch]
> ------------------------------------------------------------------
>
>                 Key: HIVE-9561
>                 URL: https://issues.apache.org/jira/browse/HIVE-9561
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>            Reporter: Rui Li
>            Assignee: Rui Li
>             Fix For: 1.2.0
>
>         Attachments: HIVE-9561.1-spark.patch, HIVE-9561.2-spark.patch, HIVE-9561.3-spark.patch,
HIVE-9561.4-spark.patch, HIVE-9561.5-spark.patch, HIVE-9561.6-spark.patch
>
>
> The {{sortByKey}} shuffle launches probe jobs. Such jobs can hurt performance and are
difficult to control. So we should limit the use of {{sortByKey}} to order by query only.



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