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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7445) Implement bulk checksum verification using efficient native code
Date Tue, 02 Aug 2011 22:36:27 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13078475#comment-13078475
] 

Kihwal Lee commented on HADOOP-7445:
------------------------------------

+1 The patch looks good.

> Implement bulk checksum verification using efficient native code
> ----------------------------------------------------------------
>
>                 Key: HADOOP-7445
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7445
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: native, util
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: hadoop-7445.txt, hadoop-7445.txt, hadoop-7445.txt, hadoop-7445.txt
>
>
> Once HADOOP-7444 is implemented ("bulk" API for checksums), good performance gains can
be had by implementing bulk checksum operations using JNI. This JIRA is to add checksum support
to the native libraries. Of course if native libs are not available, it will still fall back
to the pure-Java implementations.

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