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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/06/17 17:12:05 UTC

[jira] [Assigned] (SPARK-16018) Shade netty for shuffle to work on YARN

     [ https://issues.apache.org/jira/browse/SPARK-16018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-16018:
------------------------------------

    Assignee: Apache Spark

> Shade netty for shuffle to work on YARN
> ---------------------------------------
>
>                 Key: SPARK-16018
>                 URL: https://issues.apache.org/jira/browse/SPARK-16018
>             Project: Spark
>          Issue Type: Bug
>          Components: Shuffle
>    Affects Versions: 2.0.0
>            Reporter: Dhruve Ashar
>            Assignee: Apache Spark
>            Priority: Blocker
>             Fix For: 2.0.0
>
>
> We replaced LazyFileRegion with netty's DefaultFileRegion. 
> Because of this (https://issues.apache.org/jira/browse/SPARK-15178), we have a dependency on netty 4.0.25.Final or >, but hadoop is on 4.0.23.Final, so the shuffle jar won't load in nodemanager as its trying to find a new version of the class. 
> We need to shade netty's classes inorder to load the latest version we need and not depend on the one loaded by hadoop.



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