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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-17542) Make HoS CombineEquivalentWorkResolver Configurable
Date Mon, 25 Sep 2017 05:36:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-17542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16178552#comment-16178552
] 

Lefty Leverenz commented on HIVE-17542:
---------------------------------------

Doc note:  This adds *hive.combine.equivalent.work.optimization* to HiveConf.java and appends
"Tez only" to the description of *hive.optimize.shared.work*, which was created in HIVE-16867
(also for release 3.0.0).

*hive.combine.equivalent.work.optimization* is for Spark only, so it belongs in the Spark
section of Configuration Properties.  *hive.combine.equivalent.work.optimization* belongs
in the Tez section.

* [Configuration Properties -- Spark | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-Spark]
* [Configuration Properties -- Tez | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-Tez]

Added a TODOC3.0 label.

> Make HoS CombineEquivalentWorkResolver Configurable
> ---------------------------------------------------
>
>                 Key: HIVE-17542
>                 URL: https://issues.apache.org/jira/browse/HIVE-17542
>             Project: Hive
>          Issue Type: Improvement
>          Components: Physical Optimizer, Spark
>            Reporter: Sahil Takiar
>            Assignee: Sahil Takiar
>              Labels: TODOC3.0
>             Fix For: 3.0.0
>
>         Attachments: HIVE-17542.1.patch, HIVE-17542.2.patch, HIVE-17542.3.patch
>
>
> The {{CombineEquivalentWorkResolver}} is run by default. We should make it configurable
so that users can disable it in case there are any issues. We can enable it by default to
preserve backwards compatibility.



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