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From "Kai Zheng (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 07:44:53 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14392301#comment-14392301
] 

Kai Zheng commented on HDFS-7717:
---------------------------------

As I re-purposed this and modified the description, this issue will focus on *stripping* erasure
coding case. It stays in HDFS-8031 so will be done in phase 1. I created another one HDFS-8042
similar to this but will focus on *non-stripping* case, which targets for HDFS-8030 in phase
2. Am I clear ?

> 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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