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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-947) The namenode should redirect a hftp request to read a file to the datanode that has the maximum number of local replicas
Date Tue, 01 Jun 2010 23:17:37 GMT

    [ https://issues.apache.org/jira/browse/HDFS-947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12874291#action_12874291
] 

Hadoop QA commented on HDFS-947:
--------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12446046/HDFS-947.patch
  against trunk revision 949827.

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

    +1 tests included.  The patch appears to include 4 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    -1 javac.  The applied patch generated 24 javac compiler warnings (more than the trunk's
current 23 warnings).

    -1 findbugs.  The patch appears to introduce 1 new Findbugs warnings.

    -1 release audit.  The applied patch generated 113 release audit warnings (more than the
trunk's current 112 warnings).

    -1 core tests.  The patch failed core unit tests.

    -1 contrib tests.  The patch failed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/388/testReport/
Release audit warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/388/artifact/trunk/patchprocess/releaseAuditDiffWarnings.txt
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/388/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/388/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/388/console

This message is automatically generated.

> The namenode should redirect a hftp request to read a file to the datanode that has the
maximum number of local replicas
> ------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-947
>                 URL: https://issues.apache.org/jira/browse/HDFS-947
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: dhruba borthakur
>            Assignee: Dmytro Molkov
>         Attachments: HDFS-947.patch, hftpRedirection.patch
>
>
> A client that uses the Hftp protocol to read a file is redirected by the namenode to
a random datanode. It would be nice if the client gets redirected to a datanode that has the
maximum number of local replicas of the blocks of the file.

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