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https://issues.apache.org/jira/browse/HADOOP-9912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13773377#comment-13773377
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Daryn Sharp commented on HADOOP-9912:
-------------------------------------
We also need to revert most of HADOOP-9817, or at least change the new
{{Globber}} class to behave identically (although resolving symlinks) to how it
did before being split out of FileSystem.
The new implementation is causing increased RPC load by listing parent
directories when no patterns are present in the component. We've had apps go
OOM, or run extremely slowly, because parent dirs had lots of items.
Plus multiple exceptions are now erroneously being reported as FNF, etc. Ex. I
know of at least AccessControlException (I think Colin fixed?) and
StandbyException but I think we encountered more.
> globStatus of a symlink to a directory does not report symlink as a directory
> -----------------------------------------------------------------------------
>
> Key: HADOOP-9912
> URL: https://issues.apache.org/jira/browse/HADOOP-9912
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 2.1.0-beta
> Reporter: Jason Lowe
> Priority: Blocker
> Attachments: HADOOP-9912-testcase.patch, new-hdfs.txt, new-local.txt,
> old-hdfs.txt, old-local.txt
>
>
> globStatus for a path that is a symlink to a directory used to report the
> resulting FileStatus as a directory but recently this has changed.
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