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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13010) Refactor raw erasure coders
Date Tue, 24 May 2016 21:45:12 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13010?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kai Zheng updated HADOOP-13010:
-------------------------------
    Attachment: HADOOP-13010-v7.patch

Updated the patch fixing the failure mentioned above. Also manually checked many related tests.
Not sure why the Jenkins not worked for this as before but guess the latest change came across
both HADOOP and HDFS sides.



> 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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