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Date: Tue, 14 Feb 2012 19:23:59 +0000 (UTC)
From: "Jitendra Nath Pandey (Updated) (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HDFS-2655) BlockReaderLocal#skip performs
 unnecessary IO
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     [ https://issues.apache.org/jira/browse/HDFS-2655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jitendra Nath Pandey updated HDFS-2655:
---------------------------------------

    Status: Patch Available  (was: Open)
    
> BlockReaderLocal#skip performs unnecessary IO
> ---------------------------------------------
>
>                 Key: HDFS-2655
>                 URL: https://issues.apache.org/jira/browse/HDFS-2655
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: data-node
>    Affects Versions: 0.23.1
>            Reporter: Eli Collins
>            Assignee: Brandon Li
>         Attachments: HDFS-2655.txt
>
>
> Per HDFS-2654 BlockReaderLocal#skip performs the skip by reading the data so we stay in sync with checksums. This could be implemented more efficiently in the future to skip to the beginning of the appropriate checksum chunk and then only read to the middle of that chunk.

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