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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7717) Erasure Coding: distribute replication to erasure coding conversion work to DataNode
Date Wed, 01 Apr 2015 17:21:53 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14391017#comment-14391017
] 

Zhe Zhang commented on HDFS-7717:
---------------------------------

Thanks Kai for confirming. I moved it to the follow-on JIRA because it still belongs to phase
1 (striping layout). Phase 2 focuses on EC with contiguous block layout.

> Erasure Coding: distribute replication to erasure coding conversion work to DataNode
> ------------------------------------------------------------------------------------
>
>                 Key: HDFS-7717
>                 URL: https://issues.apache.org/jira/browse/HDFS-7717
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Jing Zhao
>            Assignee: Kai Sasaki
>
> We need some approach to distribute conversion work between replication and erasure coding
to DataNode. It can be NameNode, or a tool utilizing MR just like the current distcp, or another
one like the balancer/mover. 



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