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https://issues.apache.org/jira/browse/HADOOP-10942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14093634#comment-14093634
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Colin Patrick McCabe commented on HADOOP-10942:
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I created HADOOP-10958 for the globber test rework (I think it's going to be a
giant patch, although simple in concept.). I created HADOOP-10957 for the
urgent globber bug, and posted a small bugfix that we can easily backport. Can
you file a JIRA for the FileContext issue, if there's not one out there
already? And perhaps one for any other miscellaneous optimizations /
refactoring we should do in the globber.
> Globbing optimizations and regression fix
> -----------------------------------------
>
> Key: HADOOP-10942
> URL: https://issues.apache.org/jira/browse/HADOOP-10942
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 3.0.0, 2.1.0-beta
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Critical
> Attachments: HADOOP-10942.patch
>
>
> When globbing was commonized to support both filesystem and filecontext, it
> regressed a fix that prevents an intermediate glob that matches a file from
> throwing a confusing permissions exception. The hdfs traverse check requires
> the exec bit which a file does not have.
> Additional optimizations to reduce rpcs actually increases them if
> directories contain 1 item.
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