我的集群是ambari hortonworks（ambari-server-2.0.1-45）hdp 2.2：
我想把一个hdfs文件夹备份到awss3上。我使用了以下命令：hadoop distcphdfs://internalip：8020/备份s3：//aws-id:aws-secret-key@bucket-name/directory-name
我已经尝试过如何从本地hadoop2.6安装访问s3/s3n？
但我仍然得到以下错误：

Error: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop.fs.s3.S3FileSystem not found
    at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2076)
    at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2601)
    at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2614)
    at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:91)
    at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2653)
    at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2635)
    at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:370)
    at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296)
    at org.apache.hadoop.tools.mapred.CopyMapper.setup(CopyMapper.java:112)
    at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:142)
    at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:784)
    at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
        at org.apache.hadoop.tools.DistCp.execute(DistCp.java:175)