Is the file actually in hdfs? Did you run "hadoop dfs -copyFromLocal <file-name> <hdfs-destination>"
On Wed, Dec 11, 2013 at 5:53 AM, unmesha sreeveni <[email protected]>wrote: > I am trying to run Decision Tree in Hadoop MapReduce. > > But it is showing java.io.FileNotFoundException: File does not exist: in > cluster. But when i tried it from Eclipse it is showing the correct result > with the below settings > > Configuration conf = new Configuration(); > conf.set("fs.defaultFS", "remotesystem-ip/"); > conf.set("hadoop.job.ugi", "hdfs"); > And it created all the intermediate files under /user/sree/C45 > > hadoop fs -ls /user/sree/C45 > Found 9 items > -rw-r--r-- 3 sree supergroup 263 2013-12-11 15:56 > /user/sree/C45/intermediate0.txt > -rw-r--r-- 3 sree supergroup 106 2013-12-11 15:56 > /user/sree/C45/intermediate1.txt > -rw-r--r-- 3 sree supergroup 130 2013-12-11 15:56 > /user/sree/C45/intermediate2.txt > -rw-r--r-- 3 sree supergroup 128 2013-12-11 15:56 > /user/sree/C45/intermediate3.txt > -rw-r--r-- 3 sree supergroup 54 2013-12-11 15:56 > /user/sree/C45/intermediate4.txt > -rw-r--r-- 3 sree supergroup 50 2013-12-11 15:56 > /user/sree/C45/intermediate5.txt > -rw-r--r-- 3 sree supergroup 48 2013-12-11 15:56 > /user/sree/C45/intermediate6.txt > -rw-r--r-- 3 sree supergroup 53 2013-12-11 15:56 > /user/sree/C45/intermediate7.txt > -rw-r--r-- 3 sree supergroup 97 2013-12-11 15:56 > /user/sree/C45/rule.txt > When i tried exporting my jar on remote cluster and ran my job it is > showing > > In gainratio --- getcount > file exists:C45/intermediate1.txtfalse > > java.io.FileNotFoundException: File does not exist: > /user/sree/C45/intermediate1.txt > at > org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:39) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsUpdateTimes(FSNamesystem.java:1341) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1293) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1269) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1242) > at > org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:392) > at > org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodeProtocolServerSideTranslatorPB.java:172) > at > org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:44938) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:453) > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1002) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1701) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1697) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1408) > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1695) > > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native > Method) > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) > at java.lang.reflect.Constructor.newInstance(Constructor.java:525) > at > org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:90) > at > org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:57) > at > org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:972) > at > org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:960) > at > org.apache.hadoop.hdfs.DFSInputStream.fetchLocatedBlocksAndGetLastBlockLength(DFSInputStream.java:238) > at > org.apache.hadoop.hdfs.DFSInputStream.openInfo(DFSInputStream.java:205) > at > org.apache.hadoop.hdfs.DFSInputStream.<init>(DFSInputStream.java:198) > at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:1117) > at > org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:249) > at > org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:82) > at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:746) > at tech.GainRatio.getcount(GainRatio.java:121) > at tech.C45.main(C45.java:140) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:601) > at org.apache.hadoop.util.RunJar.main(RunJar.java:208) > Caused by: > org.apache.hadoop.ipc.RemoteException(java.io.FileNotFoundException): File > does not exist: /user/sree/user/dataadmin/C45/intermediate1.txt > at > org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:39) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsUpdateTimes(FSNamesystem.java:1341) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1293) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1269) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1242) > at > org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:392) > at > org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodeProtocolServerSideTranslatorPB.java:172) > at > org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:44938) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:453) > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1002) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1701) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1697) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1408) > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1695) > > at org.apache.hadoop.ipc.Client.call(Client.java:1225) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:202) > at $Proxy9.getBlockLocations(Unknown Source) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:601) > at > org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:164) > at > org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:83) > at $Proxy9.getBlockLocations(Unknown Source) > at > org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getBlockLocations(ClientNamenodeProtocolTranslatorPB.java:155) > at > org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:970) > ... 15 more > Why are my intermediate files not getting created in my remote system. > > Am i doing anything wrong: Source: > https://github.com/studhadoop/MyC45/tree/master/tech > > -- > *Thanks & Regards* > > Unmesha Sreeveni U.B > > *Junior Developer* > > >
