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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7859) Erasure Coding: Persist EC schemas in NameNode
Date Wed, 15 Apr 2015 08:32:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14495853#comment-14495853
] 

Kai Zheng commented on HDFS-7859:
---------------------------------

Hi [~szetszwo],

Per your request I updated the doc in HDFS-7337 accordingly. It entirely rewrote the schema
section and mainly reflects existing related discussions and even implementations. I wish
it addresses your questions here well. Your further comments and questions are very welcome.
Thanks in advance!

> 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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