ASF GitHub Bot commented on PIO-30:

Github user shimamoto closed the pull request at:


> Cross build for different versions of scala and spark
> -----------------------------------------------------
>                 Key: PIO-30
>                 URL: https://issues.apache.org/jira/browse/PIO-30
>             Project: PredictionIO
>          Issue Type: Improvement
>            Reporter: Marcin ZiemiƄski
>            Assignee: Chan
>             Fix For: 0.11.0
> The present version of Scala is 2.10 and Spark is 1.4, which is quite old. 
> With Spark 2.0.0 come many performance improvements and features, that people 
> will definitely like to add to their templates. I am also aware that past 
> cannot be ignored and simply dumping 1.x might not be an option for other 
> users. 
> I propose setting up a crossbuild in sbt to build with scala 2.10 and Spark 
> 1.6 and a separate one for Scala 2.11 and Spark 2.0. Most of the files will 
> be consistent between versions including API. The problematic ones will be 
> divided between additional source directories: src/main/scala-2.10/ and 
> src/main/scala-2.11/. The dockerized tests should also take the two versions 
> into consideration

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