機(jī)器環(huán)境：ubuntu 11.10 64位

hadoop版本：1.0.1

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按照http://hadoop.apache.org/common/docs/stable/single_node_setup.html上描述做單擊為分布式測(cè)試時(shí)拋異常：

root@ubuntu:~/sse/hadoop/hadoop-1.0.1# bin/hadoop fs -put conf input
12/03/15 20:45:37 WARN hdfs.DFSClient: DataStreamer Exception: org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /user/root/input/configuration.xsl could only be replicated to 0 nodes, instead of 1
? ? ? ? at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1556)
? ? ? ? at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:696)
? ? ? ? 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.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$1.run(Server.java:1384)
? ? ? ? at java.security.AccessController.doPrivileged(Native Method)
? ? ? ? at javax.security.auth.Subject.doAs(Subject.java:415)
? ? ? ? at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1093)
? ? ? ? at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)


? ? ? ? at org.apache.hadoop.ipc.Client.call(Client.java:1066)
? ? ? ? at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
? ? ? ? at $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 $Proxy1.addBlock(Unknown Source)
? ? ? ? at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:3507)
? ? ? ? at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:3370)
? ? ? ? at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2700(DFSClient.java:2586)
? ? ? ? at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2826)


12/03/15 20:45:37 WARN hdfs.DFSClient: Error Recovery for block null bad datanode[0] nodes == null
12/03/15 20:45:37 WARN hdfs.DFSClient: Could not get block locations. Source file "/user/root/input/configuration.xsl" - Aborting...
put: java.io.IOException: File /user/root/input/configuration.xsl could only be replicated to 0 nodes, instead of 1
12/03/15 20:45:37 ERROR hdfs.DFSClient: Exception closing file /user/root/input/configuration.xsl : org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /user/root/input/configuration.xsl could only be replicated to 0 nodes, instead of 1
? ? ? ? at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1556)
? ? ? ? at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:696)
? ? ? ? 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.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$1.run(Server.java:1384)
? ? ? ? at java.security.AccessController.doPrivileged(Native Method)
? ? ? ? at javax.security.auth.Subject.doAs(Subject.java:415)
? ? ? ? at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1093)
? ? ? ? at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)


org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /user/root/input/configuration.xsl could only be replicated to 0 nodes, instead of 1
? ? ? ? at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1556)
? ? ? ? at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:696)
? ? ? ? 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.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$1.run(Server.java:1384)
? ? ? ? at java.security.AccessController.doPrivileged(Native Method)
? ? ? ? at javax.security.auth.Subject.doAs(Subject.java:415)
? ? ? ? at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1093)
? ? ? ? at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)


? ? ? ? at org.apache.hadoop.ipc.Client.call(Client.java:1066)
? ? ? ? at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
? ? ? ? at $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 $Proxy1.addBlock(Unknown Source)
? ? ? ? at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:3507)
? ? ? ? at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:3370)
? ? ? ? at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2700(DFSClient.java:2586)
? ? ? ? at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2826)

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原因?yàn)閡buntu的防火墻沒(méi)關(guān)閉。（切記：所有的防火墻都要關(guān)閉的）

執(zhí)行sudo ufw disable

執(zhí)行bin/stop-all.sh

執(zhí)行bin/start-all.sh

執(zhí)行：bin/hadoop fs -put conf input

OK！