allow FileSystem.copyFromLocalFile() to execute under specified username
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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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