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https://issues.apache.org/jira/browse/HADOOP-13010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15247314#comment-15247314
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Zhe Zhang commented on HADOOP-13010:
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Thanks for the discussions Colin / Kai. The "dummy" coders are for tests only.
Either name sounds fine to me. No-op is a more accurate technical description,
while dummy better states the purpose (and therefore prevent users from
actually using it). Maybe we can leave that one open and move this refactor
forward.
> Refactor raw erasure coders
> ---------------------------
>
> Key: HADOOP-13010
> URL: https://issues.apache.org/jira/browse/HADOOP-13010
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Kai Zheng
> Assignee: Kai Zheng
> Fix For: 3.0.0
>
> Attachments: HADOOP-13010-v1.patch, HADOOP-13010-v2.patch,
> HADOOP-13010-v3.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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