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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7866) Erasure coding: NameNode manages multiple erasure coding policies
Date Wed, 02 Mar 2016 06:29:18 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15175128#comment-15175128
] 

Zhe Zhang commented on HDFS-7866:
---------------------------------

And yes, {{RS_6_3_POLICY_ID}} sounds good. If we later support multiple cell sizes we can
reflect that in naming as well.

> Erasure coding: NameNode manages multiple erasure coding policies
> -----------------------------------------------------------------
>
>                 Key: HDFS-7866
>                 URL: https://issues.apache.org/jira/browse/HDFS-7866
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: Rui Li
>         Attachments: HDFS-7866-v1.patch, HDFS-7866-v2.patch, HDFS-7866-v3.patch, HDFS-7866.10.patch,
HDFS-7866.4.patch, HDFS-7866.5.patch, HDFS-7866.6.patch, HDFS-7866.7.patch, HDFS-7866.8.patch,
HDFS-7866.9.patch
>
>
> This is to extend NameNode to load, list and sync predefine EC schemas in authorized
and controlled approach. The provided facilities will be used to implement DFSAdmin commands
so admin can list available EC schemas, then could choose some of them for target EC zones.



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