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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7839) Erasure coding: implement facilities in NameNode to create and manage EC zones
Date Fri, 03 Apr 2015 05:39:53 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14394090#comment-14394090
] 

Zhe Zhang commented on HDFS-7839:
---------------------------------

Thanks Jing and Kai for reviewing! I just committed it to the branch.

> Erasure coding: implement facilities in NameNode to create and manage EC zones
> ------------------------------------------------------------------------------
>
>                 Key: HDFS-7839
>                 URL: https://issues.apache.org/jira/browse/HDFS-7839
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>         Attachments: HDFS-7839-000.patch, HDFS-7839-001.patch, HDFS-7839-002.patch, HDFS-7839-003.patch
>
>
> As a quick first step to facilitate initial development and testing, HDFS-7347 added
EC configuration in file header as one storage policy. We have discussed and [concluded |https://issues.apache.org/jira/browse/HDFS-7285?focusedCommentId=14296210&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14296210]
that EC configurations should be part of XAttr. This JIRA aims to add the basic EC XAttr structure.
HDFS-7337 will add configurable and pluggable schema info.
> This JIRA will follow the [plan | https://issues.apache.org/jira/browse/HDFS-7285?focusedCommentId=14370307&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14370307]
we made under HDFS-7285.



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