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From "Runping Qi (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-2050) distcp failed due to problem in creating files
Date Sat, 13 Oct 2007 03:33:50 GMT
distcp failed due to problem in creating files
----------------------------------------------

                 Key: HADOOP-2050
                 URL: https://issues.apache.org/jira/browse/HADOOP-2050
             Project: Hadoop
          Issue Type: Bug
            Reporter: Runping Qi



When I run a distcp program to copy files from one dfs to another, my job failed with
the mappers throwing the following exception:

org.apache.hadoop.ipc.RemoteException: org.apache.hadoop.dfs.AlreadyBeingCreatedException:
failed to create file /xxxxx/part-00007 for DFSClient_task_200710122302_0002_m_000456_2 on
client 72.30.43.23 because current leaseholder is trying to recreate file.
	at org.apache.hadoop.dfs.FSNamesystem.startFileInternal(FSNamesystem.java:850)
	at org.apache.hadoop.dfs.FSNamesystem.startFile(FSNamesystem.java:806)
	at org.apache.hadoop.dfs.NameNode.create(NameNode.java:333)
	at sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:379)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:596)

	at org.apache.hadoop.ipc.Client.call(Client.java:482)
	at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:184)
	at org.apache.hadoop.dfs.$Proxy1.create(Unknown Source)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
	at org.apache.hadoop.dfs.$Proxy1.create(Unknown Source)
	at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.(DFSClient.java:1432)
	at org.apache.hadoop.dfs.DFSClient.create(DFSClient.java:376)
	at org.apache.hadoop.dfs.DistributedFileSystem.create(DistributedFileSystem.java:121)
	at org.apache.hadoop.util.CopyFiles$FSCopyFilesMapper.copy(CopyFiles.java:284)
	at org.apache.hadoop.util.CopyFiles$FSCopyFilesMapper.map(CopyFiles.java:352)
	at org.apache.hadoop.util.CopyFiles$FSCopyFilesMapper.map(CopyFiles.java:217)
	at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:195)
	at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1750)



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