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From "Lin Zeng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11604) Define and parse erasure code codecs, schemas and policies
Date Wed, 19 Apr 2017 03:53:41 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15974019#comment-15974019
] 

Lin Zeng commented on HDFS-11604:
---------------------------------

Thanks Kai for your review!

I completed the refactoring work and fixed the checkstyles in HDFS-11604-v5.patch.


> Define and parse erasure code codecs, schemas and policies
> ----------------------------------------------------------
>
>                 Key: HDFS-11604
>                 URL: https://issues.apache.org/jira/browse/HDFS-11604
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: erasure-coding
>            Reporter: Kai Zheng
>            Assignee: Lin Zeng
>             Fix For: 3.0.0-alpha3
>
>         Attachments: ec-config-sample.xml, ec-policy-config-sample-v2.xml, HDFS-11604-v1.patch,
HDFS-11604-v2.patch, HDFS-11604-v3.patch, HDFS-11604-v4.patch, HDFS-11604-v5.patch
>
>
> According to recent discussions with [~andrew.wang] in HDFS-7337, it would be good to
support allowing users to define their own erasure code codecs, schemas and policies via an
XML file. The XML file can be passed to a CLI cmd to parse and send to NameNode to persist
and maintain.
> Open this task to define the XML format providing a default sample file to put in the
configuration folder for users' reference, and implement the necessary parser utility.



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