[jira] [Created] (HDFS-12641) Backport HDFS-11755 into branch-2.7 to fix a regression in HDFS-11755

["Wei-Chiu Chuang (JIRA)" <ji...@apache.org>]

Wei-Chiu Chuang created HDFS-12641:
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             Summary: Backport HDFS-11755 into branch-2.7 to fix a regression in HDFS-11755
                 Key: HDFS-12641
                 URL: https://issues.apache.org/jira/browse/HDFS-12641
             Project: Hadoop HDFS
          Issue Type: Bug
    Affects Versions: 2.7.4
            Reporter: Wei-Chiu Chuang
            Assignee: Wei-Chiu Chuang


Our internal testing caught a regression in HDFS-11445 when we cherry picked the commit into CDH. Basically, it produces bogus missing file warnings. Further analysis revealed that the regression is actually fixed by HDFS-11755.

Because of the order commits are merged in branch-2.8 ~ trunk (HDFS-11755 was committed before HDFS-11445), the regression was never actually surfaced for Hadoop 2.8/3.0.0-(alpha/beta) users. Since branch-2.7 has HDFS-11445 but no HDFS-11755, I suspect the regression is more visible for Hadoop 2.7.4.

I am filing this jira to raise more awareness, than simply backporting HDFS-11755 into branch-2.7.



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