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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-4453) Make a simple doc to describe the usage and design of the shortcircuit read feature
Date Wed, 06 Feb 2013 06:17:13 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4453?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Colin Patrick McCabe updated HDFS-4453:
---------------------------------------

    Attachment: HDFS-4453.003.patch

* reference NativeLibraries text

* don't use _PORT in example config

* specify that we need to set configs on client and DN both
                
> Make a simple doc to describe the usage and design of the shortcircuit read feature
> -----------------------------------------------------------------------------------
>
>                 Key: HDFS-4453
>                 URL: https://issues.apache.org/jira/browse/HDFS-4453
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, hdfs-client
>            Reporter: Brandon Li
>            Assignee: Colin Patrick McCabe
>         Attachments: HDFS-4453.001.patch, HDFS-4453.002.patch, HDFS-4453.003.patch
>
>
> It would be nice to have a document to describe the configuration and design of this
feature. Also its relationship with previous short circuit read implementation(HDFS-2246),
for example, can they co-exist, or this one is planed to replaces HDFS-2246, or it can fall
back on HDFS-2246 when unix domain socket is not supported.

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