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https://issues.apache.org/jira/browse/HADOOP-2151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12540310
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Raghu Angadi commented on HADOOP-2151:
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correction : Once there is glob, we can {{listPaths}} if a glob is specified
for the component otherwise check {{exists()}} for the component.. or something
like that.. :) we don't need to list all the 5k users for /user/foo/*/.
> FileSyste.globPaths does not validate the return list of Paths
> --------------------------------------------------------------
>
> Key: HADOOP-2151
> URL: https://issues.apache.org/jira/browse/HADOOP-2151
> Project: Hadoop
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.14.3, 0.15.0
> Reporter: lohit vijayarenu
> Fix For: 0.16.0
>
>
> FileSystem.globPaths does not validate the return list of Paths.
> Here is an example.
> Consider a directory structure like
> /user/foo/DIR1/FILE1
> /user/foo/DIR2
> now if we pass an input path like "/user/foo/*/FILE1" to
> FileSystem.globPaths()
> It returns 2 entries as shown below
> /user/foo/DIR1/FILE1
> /user/foo/DIR2/FILE1
> Should globPaths validate this and return only valid Paths? This behavior was
> caught in FileSystem.validateInput() where an IOException is thrown while
> processing such a directory structure.
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