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https://issues.apache.org/jira/browse/MAPREDUCE-895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12746170#action_12746170
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Jakob Homan commented on MAPREDUCE-895:
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I should mentioned. I examined every use of the listStatus method in the MR
code and updated accordingly. There were several places were we weren't
checking for a null and could eventually have it an NPE, but in most cases
there's an explicit check if the file exists or not. Not too many changes were
required.
All the unit tests pass except known-bads TestRecoveryManager (MAPREDUCE-880)
and TestTrackerLocalization (MAPREDUCE-879). Can't run test-patch as it detects
the updated jar files and bails.
> FileSystem::ListStatus will now throw FileNotFoundException, MapRed needs
> updated
> ---------------------------------------------------------------------------------
>
> Key: MAPREDUCE-895
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-895
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Jakob Homan
> Assignee: Jakob Homan
> Attachments: MAPREDUCE-895.patch
>
>
> HADOOP-6201 (and HDFS-538) determined the semantics of FileSystem::ListStatus
> is not correct and that the actual file system class vary in their
> implemenations, with some throwing an exception and some returning null.
> Fixing this will require adjusting code that calls this method.
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