将文件从 s3:// 复制到本地（hadoop）文件系统时出错

Question

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

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）中工作正常。为什么我在 2.4.0 版本中出现此错误？

Hadoop 版本 0.20

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

Hadoop 版本 2.4.0

[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

Answer 1

你需要这样尝试。添加“

/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"

Answer 2

我自己找到了答案。

Using `distcp` instead of `fs -cp`.

这个命令没有任何问题。

将文件从 s3:// 复制到本地（hadoop）文件系统时出错

Getting error when copying file from s3:// to local(hadoop) file system

python

hadoop

amazon-s3

filesystems

hdfs