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From: navis <git@git.apache.org>
To: dev@hive.apache.org
Reply-To: dev@hive.apache.org
Message-ID: <git-pr-41-hive@git.apache.org>
Subject: [GitHub] hive pull request: HIVE-10890 Provide implementable engine
 selecto...
Content-Type: text/plain
Date: Wed,  3 Jun 2015 01:29:49 +0000 (UTC)

GitHub user navis opened a pull request:

    https://github.com/apache/hive/pull/41

    HIVE-10890 Provide implementable engine selector

    Now hive supports three kind of engines. It would be good to have an automatic engine selector without setting explicitly engine for execution.
    
    Added two configurations
    > hive.execution.engine.selector
    > hive.execution.engine.selector.param
    
    Test implementation is included as EngineSelector$SimpleSelector, which supports simple grammar something like,
    > spark = $total < 10gb && $num_aliases < 4, tez
    
    which means if total input length is less than 10gb and number of aliases is less than 4, use spark, else tez

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/navis/hive HIVE-10890

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/hive/pull/41.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #41
    
----
commit 9349d121bdd274485c0c0f4d149c5d382bed54e3
Author: navis.ryu <navis@apache.org>
Date:   2015-06-03T01:10:51Z

    HIVE-10890 Provide implementable engine selector

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