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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2470) Open and isDir should be removed from ClientProtocol
Date Tue, 29 Jan 2008 19:10:34 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12563618#action_12563618
] 

Doug Cutting commented on HADOOP-2470:
--------------------------------------

> I think you mean open and isDir can be replaced. 

FileSystem#isDirectory() is implemented in terms of FileSystem#getFileInfo(), so removing
the DistributedFileSystem implementation should work fine, no?

And, yes, open() is still called.  It's implementation on the NameNode is identical to getBlockLocations,
except for the update of a counter.  So, if that counter is not critical, open() could also
be removed.

> Open and isDir should be removed from ClientProtocol
> ----------------------------------------------------
>
>                 Key: HADOOP-2470
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2470
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.15.1
>            Reporter: Hairong Kuang
>
> Methods open and isDir in ClientProtocol are no longer used. DFSClient uses getBlockLocations
and getFileInfo instead. So open and isDir should be removed from ClientProtocol.

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