[jira] [Created] (MAPREDUCE-5306) HistoryFileManager.mkdir() doesn't handle case where dest path exists -and is a file

["Steve Loughran (JIRA)" <ji...@apache.org>]

Steve Loughran created MAPREDUCE-5306:
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             Summary: HistoryFileManager.mkdir() doesn't handle case where dest path exists -and is a file
                 Key: MAPREDUCE-5306
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5306
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Steve Loughran
            Priority: Minor


The {{HistoryFileManager.mkdir()}} code handles the path existing simply by logging that the dir exists, and returning for everything else to work.

There's a big assumption there: that the path resolves to a directory. A check needs to be made that this assumption is valid -throwing some IOE subclass if it's just a file

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