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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2129) Simplify BlockReader to not inherit from FSInputChecker
Date Tue, 16 Aug 2011 18:27:27 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13085887#comment-13085887
] 

Kihwal Lee commented on HDFS-2129:
----------------------------------

Does the patch include HDFS-2260?

> Simplify BlockReader to not inherit from FSInputChecker
> -------------------------------------------------------
>
>                 Key: HDFS-2129
>                 URL: https://issues.apache.org/jira/browse/HDFS-2129
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs client
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.23.0
>
>         Attachments: hdfs-2129-benchmark.png, hdfs-2129.txt, hdfs-2129.txt, seq-read-1gb-bench.png
>
>
> BlockReader is currently quite complicated since it has to conform to the FSInputChecker
inheritance structure. It would be much simpler to implement it standalone. Benchmarking indicates
it's slightly faster, as well.

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