Hi, I am newbi in hadoop, I am running hadoop on Mac X 10. and i can't load any files in Hdfs.
first of all, i am getting this error localhost: 2013-04-26 19:08:31.330 java[14436:1b03] Unable to load realm info from SCDynamicStore which from some posts i understand i should add this line to hadoop-env.sh. but it didn't fix it. export HADOOP_OPTS="-Djava.security.krb5.realm=OX.AC.UK-Djava.security.krb5.kdc=kdc0.ox.ac.uk: kdc1.ox.ac.uk" second , i can't load any files in Hdfs. i am trying to run hadoop in pseudo-distributed mode so i used configuration from here<http://hadoop.apache.org/docs/r1.0.4/single_node_setup.html> for it. i am sure hadoop is loading my configurations because i have added a java home into hadoop-env.sh successfully. this is error i get: m0h3n:hadoop-1.0.4 mohsen$ ./bin/hadoop dfs -put conf input 2013-04-26 19:18:04.185 java[14559:1703] Unable to load realm info from SCDynamicStore 13/04/26 19:18:04 WARN hdfs.DFSClient: DataStreamer Exception: org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /user/mohsen/input/capacity-scheduler.xml could only be replicated to 0 nodes, instead of 1 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1558) at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:696) at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382) at org.apache.hadoop.ipc.Client.call(Client.java:1070) at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225) at com.sun.proxy.$Proxy1.addBlock(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:82) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59) at com.sun.proxy.$Proxy1.addBlock(Unknown Source) at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:3510) at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:3373) at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2600(DFSClient.java:2589) at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2829) 13/04/26 19:18:04 WARN hdfs.DFSClient: Error Recovery for block null bad datanode[0] nodes == null 13/04/26 19:18:04 WARN hdfs.DFSClient: Could not get block locations. Source file "/user/mohsen/input/capacity-scheduler.xml" - Aborting... put: java.io.IOException: File /user/mohsen/input/capacity-scheduler.xml could only be replicated to 0 nodes, instead of 1 13/04/26 19:18:04 ERROR hdfs.DFSClient: Exception closing file /user/mohsen/input/capacity-scheduler.xml : org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /user/mohsen/input/capacity-scheduler.xml could only be replicated to 0 nodes, instead of 1 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1558) at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:696) at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382) org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /user/mohsen/input/capacity-scheduler.xml could only be replicated to 0 nodes, instead of 1 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1558) at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:696) at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382) at org.apache.hadoop.ipc.Client.call(Client.java:1070) at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225) at com.sun.proxy.$Proxy1.addBlock(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:82) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59) at com.sun.proxy.$Proxy1.addBlock(Unknown Source) at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:3510) at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:3373) at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2600(DFSClient.java:2589) at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2829) -- Mohsen B.S this is the result of jps. m0h3n:hadoop-1.0.4 mohsen$ jps 357 14588 Jps 14436 TaskTracker 14261 SecondaryNameNode 14059 NameNode 14335 JobTracker Please help me to overcome this problem regards Mohsen
