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https://issues.apache.org/jira/browse/HADOOP-8973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13483599#comment-13483599
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Chris Nauroth commented on HADOOP-8973:
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One other note on that patch: I also noticed a bug in TestDiskChecker.java.
The _checkDirs helper method was not using the isDir flag. This meant that the
test case testCheckDir_notDir_local was not really testing what it intended. I
updated _checkDirs to make use of the flag. If isDir is true, then the test
runs against a directory. If isDir is false, then the test runs against a file.
All of these tests pass on Mac and Windows with this patch.
> DiskChecker cannot reliably detect an inaccessible disk on Windows with NTFS
> ACLs
> ---------------------------------------------------------------------------------
>
> Key: HADOOP-8973
> URL: https://issues.apache.org/jira/browse/HADOOP-8973
> Project: Hadoop Common
> Issue Type: Bug
> Components: util
> Affects Versions: trunk-win
> Reporter: Chris Nauroth
> Assignee: Chris Nauroth
> Attachments: HADOOP-8973-branch-trunk-win.patch
>
>
> DiskChecker.checkDir uses File.canRead, File.canWrite, and File.canExecute to
> check if a directory is inaccessible. These APIs are not reliable on Windows
> with NTFS ACLs due to a known JVM bug.
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