我正在尝试使用python将文件从s3复制到hadoop文件系统。我得到以下错误：

cp: `foo/ds=2015-02-13/ip-d1b-request-2015-02-13_10-00_10-09.txt.gz': No such file or directory

我最近正在迁移最新的hadoop版本（2.4.0）。在版本（0.20）中运行良好。为什么在2.4.0版本中会出现此错误？
在hadoop版本0.20中

hadoop@ip-10-76-38-167:~$ /home/hadoop/bin/hadoop fs -cp s3://test.com/foo/ds=2015-02-13/ip-d1b-request-2015-02-13_10-00_10-09.txt.gz /foo/ds=2015-02-13/ip-d1b-request-2015-02-13_10-00_10-09.txt.gz

15/02/13 11:21:45 INFO s3native.NativeS3FileSystem: Opening 's3://test.com/foo/ds=2015-02-13/ip-d1b-request-2015-02-13_10-00_10-09.txt.gz' for reading

在hadoop版本2.4.0中

[hadoop@ip-10-169-19-123 ~]$ /home/hadoop/bin/hadoop fs -cp s3://test.com/foo/ds=2015-02-13/ip-d1b-request-2015-02-13_10-00_10-09.txt.gz /foo/ds=2015-02-13/ip-d1b-request-2015-02-13_10-00_10-09.txt.gz

15/02/13 11:21:37 INFO guice.EmrFSBaseModule: Consistency disabled, using com.amazon.ws.emr.hadoop.fs.s3n.S3NativeFileSystem as FileSystem implementation.

15/02/13 11:21:38 INFO fs.EmrFileSystem: Using com.amazon.ws.emr.hadoop.fs.s3n.S3NativeFileSystem as filesystem implementation

cp: `foo/ds=2015-02-13/ip-d1b-request-2015-02-13_10-00_10-09.txt.gz': No such file or directory