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From "Surendra Singh Lilhore (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-9355) Add client API to get Datanode list based on storage type
Date Wed, 30 Dec 2015 05:06:49 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Surendra Singh Lilhore updated HDFS-9355:
-----------------------------------------
    Attachment: HDFS-9355.001.patch

> Add client API to get Datanode list based on storage type
> ---------------------------------------------------------
>
>                 Key: HDFS-9355
>                 URL: https://issues.apache.org/jira/browse/HDFS-9355
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs-client
>            Reporter: Surendra Singh Lilhore
>            Assignee: Surendra Singh Lilhore
>         Attachments: HDFS-9355.001.patch
>
>
> HDFS-2576 give option to hint namenode about favored nodes, but in heterogeneous cluster
this will not work out. Suppose client wants to write his data in directory which have COLD
policy, but he don't know which DN have ARCHIVE storage, So he will not able to give favoredNodes
list. 



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