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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13010) Refactor raw erasure coders
Date Wed, 25 May 2016 01:35:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15299299#comment-15299299
] 

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

The failed tests were checked and not related to this change. Most of the check styles are
intended and one would be fixed. Would fix it here with other comments if any or in HADOOP-11540.
 
{noformat}
CoderUtil.java:107:  /**: First sentence should end with a period.
{noformat}

> 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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