[jira] [Commented] (HUDI-2669) Upgrade Java toolset/runtime to JDK11

["Sagar Sumit (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HUDI-2669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17577138#comment-17577138 ] 

Sagar Sumit commented on HUDI-2669:
-----------------------------------

I have made it a blocker for next major release of Hudi 0.13.0.

Let's keep track of the following page [https://cwiki.apache.org/confluence/display/HADOOP/Hadoop+Java+Versions]

It looks like compiling Hadoop with Java 11 is still not supported, but Hadoop 3.3+ offers runtime support.

> Upgrade Java toolset/runtime to JDK11
> -------------------------------------
>
>                 Key: HUDI-2669
>                 URL: https://issues.apache.org/jira/browse/HUDI-2669
>             Project: Apache Hudi
>          Issue Type: Improvement
>          Components: performance
>            Reporter: sivabalan narayanan
>            Assignee: Alexey Kudinkin
>            Priority: Blocker
>              Labels: performance
>             Fix For: 0.13.0
>
>
> We should upgrade to at least JDK11, or preferably current latest LTS JDK17
>  
> Plan for migration:
> *Compilation*
> JDK8 will still be used to *compile* source code (both source/target will stay `1.8`): this is required to make sure as we migrate to JDK11, we don't add dependencies on features not compatible w/ JDK8. Migrating off JDK8 in toolset, will happen at a later point, when we would stop providing any assurances about the code being able to be run on 1.8.
> *Runtime*
> JDK11 will be used to *run* the code: due to JVM b/w compatibility there should be no issues of running the code compiled for 1.8 on JDK11+, other than dependencies compatibility. For that we would make sure that all our test-suites do run against JDK11+.
>  
>  
>  



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