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https://issues.apache.org/jira/browse/HDFS-10651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15383651#comment-15383651
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Youwei Wang edited comment on HDFS-10651 at 7/20/16 2:24 AM:
-------------------------------------------------------------

Hi Kai. i have found some archived information here: 
https://www.mail-archive.com/[email protected]/msg163064.html
Considering there exists another legacy class here:
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/client/impl/BlockReaderLocalLegacy.java
So are we going to keep the configurations regarding this class 
"BlockReaderLocalLegacy" while removing configuration code about 
"dfs.client.use.legacy.blockreader" ?

Thanks.






> Clean up some configuration related codes about legacy block reader
> -------------------------------------------------------------------
>
>                 Key: HDFS-10651
>                 URL: https://issues.apache.org/jira/browse/HDFS-10651
>             Project: Hadoop HDFS
>          Issue Type: Task
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Kai Zheng
>            Assignee: Youwei Wang
>            Priority: Minor
>         Attachments: HDFS-10651.v1.patch, HDFS-10651.v2.patch
>
>
> HDFS-10548 removed the legacy block reader. This is to clean up the 
> configuration related codes accordingly as [~andrew.wang] suggested.



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