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https://issues.apache.org/jira/browse/HBASE-29023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17904709#comment-17904709
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Istvan Toth commented on HBASE-29023:
-------------------------------------
Branch-2 still supports Hadoop 2.x , and branch-2.5 still supports Hadoop 3.2.
We need to weigh the costs and benefits of changing the code in some branches
only:
Having to maintain the divergent code vs the simplification gained by removing
the compatibility code.
> Simplify & remove reflections in FanOutOneBlockAsyncDFSOutputSaslHelper
> -----------------------------------------------------------------------
>
> Key: HBASE-29023
> URL: https://issues.apache.org/jira/browse/HBASE-29023
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 3.0.0-beta-1, 4.0.0-alpha-1
> Reporter: Wei-Chiu Chuang
> Priority: Major
>
> HBASE-23833 maintained compatibility for both Hadoop 3.3 and below, using
> reflection to access protobuf objects.
> Now that HBase master branch moved up Hadoop version (3.4.1), we can remove
> the complex reflection hack to simplify the code. Make it less error prone.
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