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From "Hudson (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 Sat, 19 Jun 2010 07:10:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12880438#action_12880438
] 

Hudson commented on HDFS-947:
-----------------------------

Integrated in Hadoop-Hdfs-trunk-Commit #314 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-Hdfs-trunk-Commit/314/])
    HDFS-947. An Hftp read request is redirected to a datanode that has 
the most replicas of the blocks in the file. (Dmytro Molkov via dhruba)


> 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
>             Fix For: 0.22.0
>
>         Attachments: HDFS-947.2.patch, 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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