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https://issues.apache.org/jira/browse/HADOOP-4655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12677557#action_12677557
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Hong Tang commented on HADOOP-4655:
-----------------------------------

+1.

BTW, instead of getUnique(), newInstance() or create() sounds better to me. 
Also, clarify the semantic difference between the two in javadoc.

> FileSystem.CACHE should be ref-counted
> --------------------------------------
>
>                 Key: HADOOP-4655
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4655
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs, fs
>    Affects Versions: 0.18.1, 0.18.2, 0.19.0, 0.19.1, 0.20.0
>            Reporter: Hong Tang
>            Assignee: dhruba borthakur
>         Attachments: FileSystemUnique.patch
>
>
> FileSystem.CACHE is not ref-counted, and could lead to resource leakage.

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