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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2832) Enable support for heterogeneous storages in HDFS
Date Tue, 07 Jan 2014 11:09:14 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13864102#comment-13864102
] 

Hudson commented on HDFS-2832:
------------------------------

SUCCESS: Integrated in Hadoop-Yarn-trunk #445 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/445/])
HDFS-2832. Update CHANGES.txt to reflect merge to branch-2 (arp: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1556088)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt


> Enable support for heterogeneous storages in HDFS
> -------------------------------------------------
>
>                 Key: HDFS-2832
>                 URL: https://issues.apache.org/jira/browse/HDFS-2832
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>    Affects Versions: 0.24.0
>            Reporter: Suresh Srinivas
>            Assignee: Suresh Srinivas
>             Fix For: 3.0.0, 2.4.0
>
>         Attachments: 20130813-HeterogeneousStorage.pdf, 20131125-HeterogeneousStorage-TestPlan.pdf,
20131125-HeterogeneousStorage.pdf, 20131202-HeterogeneousStorage-TestPlan.pdf, 20131203-HeterogeneousStorage-TestPlan.pdf,
H2832_20131107.patch, editsStored, editsStored, h2832_20131023.patch, h2832_20131023b.patch,
h2832_20131025.patch, h2832_20131028.patch, h2832_20131028b.patch, h2832_20131029.patch, h2832_20131103.patch,
h2832_20131104.patch, h2832_20131105.patch, h2832_20131107b.patch, h2832_20131108.patch, h2832_20131110.patch,
h2832_20131110b.patch, h2832_20131111.patch, h2832_20131112.patch, h2832_20131112b.patch,
h2832_20131114.patch, h2832_20131118.patch, h2832_20131119.patch, h2832_20131119b.patch, h2832_20131121.patch,
h2832_20131122.patch, h2832_20131122b.patch, h2832_20131123.patch, h2832_20131124.patch, h2832_20131202.patch,
h2832_20131203.patch, h2832_20131210.patch, h2832_20131211.patch, h2832_20131211b.patch, h2832_branch-2_20131226.patch,
h2832_branch-2_20140103.patch
>
>
> HDFS currently supports configuration where storages are a list of directories. Typically
each of these directories correspond to a volume with its own file system. All these directories
are homogeneous and therefore identified as a single storage at the namenode. I propose, change
to the current model where Datanode * is a * storage, to Datanode * is a collection * of strorages.




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