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https://issues.apache.org/jira/browse/HADOOP-9413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13609323#comment-13609323
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Chris Nauroth commented on HADOOP-9413:
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I've spotted another instance of this problem, in YARN nodemanager
{{NodeHealthScriptRunner#shouldRun}}, which checks {{File#canExecute}}, and
we've already seen that this is unreliable on Windows. The problem manifests
as a test failure in {{TestNodeHealthService}}.
I expect I'll get a chance to review this proposal within the next few days.
Thanks for investigating this, Ivan!
> Introduce common utils for File#setReadable/Writable/Executable and
> File#canRead/Write/Execute that work cross-platform
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-9413
> URL: https://issues.apache.org/jira/browse/HADOOP-9413
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Ivan Mitic
> Assignee: Ivan Mitic
> Fix For: 3.0.0
>
> Attachments: HADOOP-9413.commonfileutils.patch
>
>
> So far, we've seen many unittest and product bugs in Hadoop on Windows
> because Java's APIs that manipulate with permissions do not work as expected.
> We've addressed many of these problems on one-by-one basis (by either
> changing code a bit or disabling the test). While debugging the remaining
> unittest failures we continue to run into the same patterns of problems, and
> instead of addressing them one-by-one, I propose that we expose a set of
> equivalent wrapper APIs that will work well for all platforms.
> Scanning thru the codebase, this will actually be a simple change as there
> are very few places that use File#setReadable/Writable/Executable and
> File#canRead/Write/Execute (5 files in Common, 9 files in HDFS).
> HADOOP-8973 contains additional context on the problem.
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