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Posted to common-dev@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2015/05/02 02:37:06 UTC

[jira] [Created] (HADOOP-11903) test-patch should fail any new classes called Default-foo

Allen Wittenauer created HADOOP-11903:
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             Summary: test-patch should fail any new classes called Default-foo
                 Key: HADOOP-11903
                 URL: https://issues.apache.org/jira/browse/HADOOP-11903
             Project: Hadoop Common
          Issue Type: Test
            Reporter: Allen Wittenauer


In the past, we've named things like DefaultResourceCalculator, DefaultContainerExecutor, and DefaultCodec that do nothing but cause problems down the road since they are effectively version and functionality locked forever.  If these examples had been named what they truly were (e.g., MemoryResourceCalculator, SimpleContainerExecutor, and GZipCodec), the defaults could then be changed in the future in a compatible way. 

One way to enforce this is to prevent the creation of new classes called Default-anything. 



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