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https://issues.apache.org/jira/browse/HADOOP-9159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14535657#comment-14535657
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Tsz Wo Nicholas Sze commented on HADOOP-9159:
---------------------------------------------
Why this is useful? Applications could compare getCanonicalUri() if they want
to.
Two different FileSystems with the same CanonicalUri may be associated with two
different UGIs. So consider they are the same may lead to some unexpected
behavior.
> FileSystem class should override .equals(Object)
> ------------------------------------------------
>
> Key: HADOOP-9159
> URL: https://issues.apache.org/jira/browse/HADOOP-9159
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 1.1.1, 3.0.0
> Reporter: Thejas M Nair
> Assignee: Brandon Li
> Attachments: HADOOP-9159.patch, HADOOP-9159.patch
>
>
> The FileSystem class has a notion of equality, based on the uri. The class
> should override .equal(Object) so that it returns true if FileSystem objects
> are logically same.
> This is useful when FileSystem cache is disabled, as FileSystem.get(..) will
> return new object each time.
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