Marcelo Vanzin created LIVY-521:
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Summary: Shade netty in RSC
Key: LIVY-521
URL: https://issues.apache.org/jira/browse/LIVY-521
Project: Livy
Issue Type: Task
Components: RSC
Affects Versions: 0.6.0
Reporter: Marcelo Vanzin
Livy's build currently uses a different version of netty depending on the Spark
version. That is dangerous because at runtime, Livy will be using the
configured Spark's version of netty, which may not match the one Livy was built
with.
That can cause issues if the netty API changes in an incompatible way (as it
has in some areas between 4.0 and 4.1, which are the versions used by Spark 2.2
and 2.3 respectively).
Livy currently also adds its own netty jar to the Spark application, but that
basically has no effect unless you use Spark's "userClassPathFirst" configs.
Shading makes sure the Livy code is using its expected version of netty
regardless of the version Spark is using.
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