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https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14495049#comment-14495049
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Tsz Wo Nicholas Sze commented on HDFS-7859:
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> ... The overall design and discussion are in HDFS-7337, would you take a look 
> at it. ...

Yes, I looked at it earlier but it did not answer my questions.  Since 
HDFS-7337 is already under HDFS-8031, let's move all the related works to 
HDFS-8031.

> Erasure Coding: Persist EC schemas in NameNode
> ----------------------------------------------
>
>                 Key: HDFS-7859
>                 URL: https://issues.apache.org/jira/browse/HDFS-7859
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: Xinwei Qin 
>         Attachments: HDFS-7859.001.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we 
> persist EC schemas in NameNode centrally and reliably, so that EC zones can 
> reference them by name efficiently.



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