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Posted to hdfs-issues@hadoop.apache.org by "Todd Lipcon (Updated) (JIRA)" <ji...@apache.org> on 2011/10/21 08:06:34 UTC

[jira] [Updated] (HDFS-2129) Simplify BlockReader to not inherit from FSInputChecker

     [ https://issues.apache.org/jira/browse/HDFS-2129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Lipcon updated HDFS-2129:
------------------------------

    Component/s: performance
    
> 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, performance
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.23.0
>
>         Attachments: hdfs-2129-benchmark.png, hdfs-2129.txt, 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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