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Posted to common-dev@hadoop.apache.org by "Kai Zheng (JIRA)" <ji...@apache.org> on 2016/04/09 13:49:25 UTC

[jira] [Created] (HADOOP-13010) Refactor raw erasure coders

Kai Zheng created HADOOP-13010:
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             Summary: 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


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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