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From "Andrew Or (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-4924) Factor out code to launch Spark applications into a separate library
Date Tue, 13 Jan 2015 02:27:34 GMT

     [ https://issues.apache.org/jira/browse/SPARK-4924?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Or updated SPARK-4924:
-----------------------------
    Target Version/s: 1.3.0

> Factor out code to launch Spark applications into a separate library
> --------------------------------------------------------------------
>
>                 Key: SPARK-4924
>                 URL: https://issues.apache.org/jira/browse/SPARK-4924
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 1.0.0
>            Reporter: Marcelo Vanzin
>            Assignee: Marcelo Vanzin
>         Attachments: spark-launcher.txt
>
>
> One of the questions we run into rather commonly is "how to start a Spark application
from my Java/Scala program?". There currently isn't a good answer to that:
> - Instantiating SparkContext has limitations (e.g., you can only have one active context
at the moment, plus you lose the ability to submit apps in cluster mode)
> - Calling SparkSubmit directly is doable but you lose a lot of the logic handled by the
shell scripts
> - Calling the shell script directly is doable,  but sort of ugly from an API point of
view.
> I think it would be nice to have a small library that handles that for users. On top
of that, this library could be used by Spark itself to replace a lot of the code in the current
shell scripts, which have a lot of duplication.



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