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From "Kai Sasaki (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7717) Erasure Coding: distribute replication to stripping erasure coding conversion work to DataNode
Date Thu, 02 Apr 2015 07:49:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14392320#comment-14392320
] 

Kai Sasaki commented on HDFS-7717:
----------------------------------

[~drankye] Thank you so much for clear explanation! I misunderstood what *duplicate* means.
Sorry.

> Erasure Coding: distribute replication to stripping 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
>
> In *stripping* erasure coding case, we need some approach to distribute conversion work
between replication and stripping 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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