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Date: Thu, 26 May 2016 05:29:13 +0000 (UTC)
From: "Kai Zheng (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HADOOP-13010) Refactor raw erasure coders
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archived-at: Thu, 26 May 2016 05:29:16 -0000


    [ https://issues.apache.org/jira/browse/HADOOP-13010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15301555#comment-15301555 ] 

Kai Zheng commented on HADOOP-13010:
------------------------------------

Thanks [~cmccabe] for the extensive reviewing! Also thanks [~lirui] for working on a patch update. Committed to trunk.

> Refactor raw erasure coders
> ---------------------------
>
>                 Key: HADOOP-13010
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13010
>             Project: Hadoop Common
>          Issue Type: Sub-task
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>         Attachments: HADOOP-13010-v1.patch, HADOOP-13010-v2.patch, HADOOP-13010-v3.patch, HADOOP-13010-v4.patch, HADOOP-13010-v5.patch, HADOOP-13010-v6.patch, HADOOP-13010-v7.patch
>
>
> This will refactor raw erasure coders according to some comments received so far.
> * As discussed in HADOOP-11540 and suggested by [~cmccabe], better not to rely class inheritance to reuse the codes, instead they can be moved to some utility.
> * Suggested by [~jingzhao] somewhere quite some time ago, better to have a state holder to keep some checking results for later reuse during an encode/decode call.
> This would not get rid of some inheritance levels as doing so isn't clear yet for the moment and also incurs big impact. I do wish the end result by this refactoring will make all the levels more clear and easier to follow.


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