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https://issues.apache.org/jira/browse/HDDS-3604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17109586#comment-17109586
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Uma Maheswara Rao G commented on HDDS-3604:
-------------------------------------------

CC [~bharat] 

Recently Bharat verified and faced the class cast issues due to shaded packages 
of Message class.

> Support for Hadoop-3.3
> ----------------------
>
>                 Key: HDDS-3604
>                 URL: https://issues.apache.org/jira/browse/HDDS-3604
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>            Reporter: Vinayakumar B
>            Priority: Major
>
> Hadoop-3.3 will be released soon, which brings the most important and long 
> awaited Protobuf upgrade to 3.7, by shading the internal protobuf classes in 
> Hadoop-thirdparty library, still keeping the protobuf-2.5.0 as a transitive 
> dependency.
> Unfortunately, There are direct usages of Hadoop's internal protobuf classes. 
> Because of this, ozone breaks after upgrading hadoop dependency to 3.3.0
> This Jira intends to do avoid such direct usages of hadoop's protobuf classes.



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