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From "Marcelo Vanzin (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-15526) Shade JPMML
Date Tue, 18 Jul 2017 16:55:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-15526?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marcelo Vanzin resolved SPARK-15526.
------------------------------------
       Resolution: Fixed
         Assignee: Sean Owen
    Fix Version/s: 2.3.0

> Shade JPMML
> -----------
>
>                 Key: SPARK-15526
>                 URL: https://issues.apache.org/jira/browse/SPARK-15526
>             Project: Spark
>          Issue Type: Dependency upgrade
>          Components: ML, MLlib
>    Affects Versions: 2.0.0
>            Reporter: Villu Ruusmann
>            Assignee: Sean Owen
>            Priority: Minor
>             Fix For: 2.3.0
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> The Spark-MLlib module depends on the JPMML-Model library (org.jpmml:pmml-model:1.2.7)
for its PMML export capabilities. The JPMML-Model library is included in the Apache Spark
assembly, which makes it very difficult to build and deploy competing PMML exporters that
may wish to depend on different versions (typically much newer) of the same library.
> JPMML-Model library classes are not part of Apache Spark public APIs, so it shouldn't
be a problem if they are relocated by prepending a prefix "org.spark_project" to their package
names using Maven Shade Plugin. The requested treatment is identical to how Google Guava and
Jetty dependencies are shaded in the final assembly.
> This issue is raised in relation to the JPMML-SparkML project (https://github.com/jpmml/jpmml-sparkml),
which provides PMML export capabilities for Spark ML Pipelines. Currently, application developers
who wish to use it must tweak their application classpath, which assumes familiarity with
build internals.



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