Would you please also past the corresponding namenode log? Regards, *Stanley Shi,*
On Fri, Jul 25, 2014 at 9:15 AM, ch huang <justlo...@gmail.com> wrote: > hi,maillist: > i try to copy data from my old cluster to new cluster,i get > error ,how to handle this? > > 14/07/24 18:35:58 INFO mapreduce.Job: Task Id : > attempt_1406182801379_0004_m_000000_1, Status : FAILED > Error: java.io.IOException: File copy failed: > webhdfs://CH22:50070/mytest/pipe_url_bak/part-m-00001 --> > webhdfs://develop/tmp/pipe_url_bak/part-m-00001 > at > org.apache.hadoop.tools.mapred.CopyMapper.copyFileWithRetry(CopyMapper.java:262) > at > org.apache.hadoop.tools.mapred.CopyMapper.map(CopyMapper.java:229) > at > org.apache.hadoop.tools.mapred.CopyMapper.map(CopyMapper.java:45) > at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145) > at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340) > at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548) > at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163) > Caused by: java.io.IOException: Couldn't run retriable-command: Copying > webhdfs://CH22:50070/mytest/pipe_url_bak/part-m-00001 to > webhdfs://develop/tmp/pipe_url_bak/part-m-00001 > at > org.apache.hadoop.tools.util.RetriableCommand.execute(RetriableCommand.java:101) > at > org.apache.hadoop.tools.mapred.CopyMapper.copyFileWithRetry(CopyMapper.java:258) > ... 10 more > Caused by: java.io.IOException: Error writing request body to server > at > sun.net.www.protocol.http.HttpURLConnection$StreamingOutputStream.checkError(HttpURLConnection.java:3192) > at > sun.net.www.protocol.http.HttpURLConnection$StreamingOutputStream.write(HttpURLConnection.java:3175) > at > java.io.BufferedOutputStream.write(BufferedOutputStream.java:122) > at > org.apache.hadoop.fs.FSDataOutputStream$PositionCache.write(FSDataOutputStream.java:58) > at java.io.DataOutputStream.write(DataOutputStream.java:107) > at > java.io.BufferedOutputStream.write(BufferedOutputStream.java:122) > at > org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.copyBytes(RetriableFileCopyCommand.java:231) > at > org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.copyToTmpFile(RetriableFileCopyCommand.java:164) > at > org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.doCopy(RetriableFileCopyCommand.java:118) > at > org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.doExecute(RetriableFileCopyCommand.java:95) > at > org.apache.hadoop.tools.util.RetriableCommand.execute(RetriableCommand.java:87) > ... 11 more > 14/07/24 18:35:59 INFO mapreduce.Job: map 16% reduce 0% > 14/07/24 18:39:39 INFO mapreduce.Job: map 17% reduce 0% > 14/07/24 19:04:27 INFO mapreduce.Job: Task Id : > attempt_1406182801379_0004_m_000000_2, Status : FAILED > Error: java.io.IOException: File copy failed: > webhdfs://CH22:50070/mytest/pipe_url_bak/part-m-00001 --> > webhdfs://develop/tmp/pipe_url_bak/part-m-00001 > at > org.apache.hadoop.tools.mapred.CopyMapper.copyFileWithRetry(CopyMapper.java:262) > at > org.apache.hadoop.tools.mapred.CopyMapper.map(CopyMapper.java:229) > at > org.apache.hadoop.tools.mapred.CopyMapper.map(CopyMapper.java:45) > at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145) > at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340) > at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548) > at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163) > Caused by: java.io.IOException: Couldn't run retriable-command: Copying > webhdfs://CH22:50070/mytest/pipe_url_bak/part-m-00001 to > webhdfs://develop/tmp/pipe_url_bak/part-m-00001 > at > org.apache.hadoop.tools.util.RetriableCommand.execute(RetriableCommand.java:101) >
