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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