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https://issues.apache.org/jira/browse/HADOOP-6804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13051642#comment-13051642
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Harsh J commented on HADOOP-6804:
---------------------------------
No I do not think the CLI utilities have this in their code. They directly try
as the user you are running.
Since am not very clear on this one but willing to work a bit on it, could you
tell me why is this required?
> allow FileSystem.copyFromLocalFile() to execute under specified username
> ------------------------------------------------------------------------
>
> Key: HADOOP-6804
> URL: https://issues.apache.org/jira/browse/HADOOP-6804
> Project: Hadoop Common
> Issue Type: Improvement
> Components: util
> Affects Versions: 0.20.2
> Reporter: Ted Yu
> Priority: Minor
>
> When the user calling FileSystem.copyFromLocalFile() doesn't have permission
> to write to certain hdfs path:
> Thread [main] (Suspended (exception AccessControlException))
> DFSClient.mkdirs(String, FsPermission) line: 905
> DistributedFileSystem.mkdirs(Path, FsPermission) line: 262
> DistributedFileSystem(FileSystem).mkdirs(Path) line: 1162
> FileUtil.copy(FileSystem, Path, FileSystem, Path, boolean, boolean,
> Configuration) line: 194
> DistributedFileSystem(FileSystem).copyFromLocalFile(boolean, boolean,
> Path, Path) line: 1231
> DistributedFileSystem(FileSystem).copyFromLocalFile(boolean, Path, Path)
> line: 1207
> DistributedFileSystem(FileSystem).copyFromLocalFile(Path, Path) line:
> 1179
> GridM2mInstallation.copyInputFiles(FlowConfigurations$FlowConf) line: 380
>
> Passwordless ssh has been setup for current user, tyu, on localhost and user
> hadoop on hdfs
> FileSystem.copyFromLocalFile() should be able to execute using a different
> username than effective user on localhost so that AccessControlException can
> be avoided.
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