[jira] [Commented] (SPARK-27487) Spark - Scala 2.12 compatibility

["Hyukjin Kwon (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-27487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16821863#comment-16821863 ] 

Hyukjin Kwon commented on SPARK-27487:
--------------------------------------

I think you should ask to Scala side if they have compatibility between 2.12.7 and 2.12.8.

> Spark - Scala 2.12 compatibility
> --------------------------------
>
>                 Key: SPARK-27487
>                 URL: https://issues.apache.org/jira/browse/SPARK-27487
>             Project: Spark
>          Issue Type: Bug
>          Components: Build, Deploy
>    Affects Versions: 2.4.1
>         Environment: Scala 2.12.7, Hadoop 2.7.7, Spark 2.4.1.
>            Reporter: Vadym Holubnychyi
>            Priority: Major
>
> Hi, I've faced one interesting problem during the development. It's written that Spark 2.4.1 is compatible with Scala 2.12 (a minor version is not specified!). So I tried to deploy an application that was written on Scala 2.12.7 and I got a lot of serialization errors. Later I checked that Spark had been built on Scala 2.12.8 and I switched on it, and everything works well now. Isn't it an error that Spark 2.4.1 doesn't support other minor versions?



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