我正在尝试使用distcp将数据从一个HDFS目录复制到另一个目录：
来源hadoop版本： hadoop版本 Hadoop 2.0.0-cdh4.3.1
目的地hadoop版本： hadoop版本 Hadoop 2.0.0-cdh4.4.0
我正在使用的命令是：
hadoop distcp hftp://foo.test.net:50070/new_data/raw/new_logs/utc_date=2014-09-01/utc_hour=22 hdfs://localhost.localdomain/user/cloudera/new_logs
我得到的错误信息是：
java.io.IOException: Copied: 0 Skipped: 0 Failed: 13
at org.apache.hadoop.tools.DistCp$CopyFilesMapper.close(DistCp.java:582)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:57)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:417)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
at org.apache.hadoop.mapred.Child$4.run(Child.java:268)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1408)
at org.apache.hadoop.mapred.Child.main(Child.java:262)
==
“任务日志”的日志：
2014-09-02 13:50:30,947 INFO org.apache.hadoop.tools.DistCp: FAIL utc_hour=22/000012_0 : java.io.IOException: HTTP_OK expected, received 500
at org.apache.hadoop.hdfs.HftpFileSystem$RangeHeaderUrlOpener.connect(HftpFileSystem.java:376)
at org.apache.hadoop.hdfs.ByteRangeInputStream.openInputStream(ByteRangeInputStream.java:119)
at org.apache.hadoop.hdfs.ByteRangeInputStream.getInputStream(ByteRangeInputStream.java:103)
at org.apache.hadoop.hdfs.ByteRangeInputStream.read(ByteRangeInputStream.java:187)
at java.io.DataInputStream.read(DataInputStream.java:83)
at org.apache.hadoop.tools.DistCp$CopyFilesMapper.copy(DistCp.java:424)
at org.apache.hadoop.tools.DistCp$CopyFilesMapper.map(DistCp.java:547)
at org.apache.hadoop.tools.DistCp$CopyFilesMapper.map(DistCp.java:314)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:417)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
at org.apache.hadoop.mapred.Child$4.run(Child.java:268)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1408)
at org.apache.hadoop.mapred.Child.main(Child.java:262)
2014-09-02 13:50:31,118 INFO org.apache.hadoop.mapred.TaskLogsTruncater: Initializing logs' truncater with mapRetainSize=-1 and reduceRetainSize=-1
2014-09-02 13:50:31,131 ERROR org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException as:cloudera (auth:SIMPLE) cause:java.io.IOException: Copied: 0 Skipped: 0 Failed: 13
2014-09-02 13:50:31,131 WARN org.apache.hadoop.mapred.Child: Error running child
java.io.IOException: Copied: 0 Skipped: 0 Failed: 13
at org.apache.hadoop.tools.DistCp$CopyFilesMapper.close(DistCp.java:582)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:57)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:417)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
at org.apache.hadoop.mapred.Child$4.run(Child.java:268)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1408)
at org.apache.hadoop.mapred.Child.main(Child.java:262)
2014-09-02 13:50:31,145 INFO org.apache.hadoop.mapred.Task: Runnning cleanup for the task
=
任何帮助？
谢谢，
力