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Posted to issues@spark.apache.org by "Dhruve Ashar (JIRA)" <ji...@apache.org> on 2016/06/17 15:33:05 UTC

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

Dhruve Ashar created SPARK-16018:
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             Summary: 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
            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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