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https://issues.apache.org/jira/browse/HADOOP-4655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12680261#action_12680261
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Hong Tang commented on HADOOP-4655:
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Read through the java part of the patch, looks mostly good to me. Two questions:
- What should be the semantics of FileSystem.equals()? Should two unique
instances pointing to the same File System be considered equal or not?
- There seems to be a redundant line of import of atomic.AtomicLong
> 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
> Fix For: 0.20.0
>
> Attachments: FileSystemUnique.patch, FileSystemUnique.txt
>
>
> FileSystem.CACHE is not ref-counted, and could lead to resource leakage.
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