[
https://issues.apache.org/jira/browse/HADOOP-2841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12584244#action_12584244
]
Hairong Kuang commented on HADOOP-2841:
---------------------------------------
RemoteException.unwrapRemoteException methods waste an instantiation of an
exception if this exception is not an IOException. Better to use
Class.isAssignableFrom to determine the exception class is a subclass of
IOException before the instantiation.
> 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).
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
