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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2841) Dfs methods should not throw RemoteException
Date Tue, 01 Apr 2008 17:18:30 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12584218#action_12584218
] 

Hairong Kuang commented on HADOOP-2841:
---------------------------------------

Can we unwrap the RemoteException at the ipc level?
When unwrapping RemoteException in DFSClient, I do not think we need to introduce a varaible
"result" in every method.
Import "StringUtils" in FsShell is unneccessary.
Could you please also remove the unwrapping of RemoteException in src/test/org/apache/hadoop/security/TestPermission.java?


> Dfs methods should not throw RemoteException
> --------------------------------------------
>
>                 Key: HADOOP-2841
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2841
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: dfs
>    Affects Versions: 0.16.0
>            Reporter: Hairong Kuang
>            Assignee: Konstantin Shvachko
>             Fix For: 0.17.0
>
>         Attachments: getNodeNPE.patch
>
>
> Dfs should unwrap the RemoteException and throw the real cause of the error to the user.
This allows the user to find out the real cause without examining the remote exception. This
also allows the user to use the dfs interface without aware of the implementation details
(i.e. rpc).

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