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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-755) Read multiple checksum chunks at once in DFSInputStream
Date Tue, 05 Jan 2010 22:55:54 GMT

    [ https://issues.apache.org/jira/browse/HDFS-755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12796895#action_12796895
] 

Hadoop QA commented on HDFS-755:
--------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12427406/alldata-hdfs.tsv
  against trunk revision 895877.

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    -1 patch.  The patch command could not apply the patch.

Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/169/console

This message is automatically generated.

> Read multiple checksum chunks at once in DFSInputStream
> -------------------------------------------------------
>
>                 Key: HDFS-755
>                 URL: https://issues.apache.org/jira/browse/HDFS-755
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs client
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: alldata-hdfs.tsv, benchmark-8-256.png, benchmark.png, hdfs-755.txt,
hdfs-755.txt, hdfs-755.txt, hdfs-755.txt, hdfs-755.txt
>
>
> HADOOP-3205 adds the ability for FSInputChecker subclasses to read multiple checksum
chunks in a single call to readChunk. This is the HDFS-side use of that new feature.

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