hadoop上传文件错误File /home/input/file1.txt._COPYING_ could only be replicated to 0 nodes instead of minR-蒲公英云

hadoop上传文件错误File /home/input/file1.txt._COPYING_ could only be replicated to 0 nodes instead of minR

搭建好hadoop后使用hadoop dfs -put 命令上传文件发现失败，报了以下错误：

[java] view plain copy
14/08/18 15:18:03 WARN hdfs.DFSClient: DataStreamer Exception  
org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /home/input/file1.txt._COPYING_ could only be replicated to 0 nodes instead of minReplication (=1).  There are 2 datanode(s) running and no node(s) are excluded in this operation.  
        at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget(BlockManager.java:1384)  
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2477)  
        at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:555)  
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:387)  
        at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:59582)  
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)  
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)  
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2048)  
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2044)  
        at java.security.AccessController.doPrivileged(Native Method)  
        at javax.security.auth.Subject.doAs(Subject.java:396)  
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)  
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2042)  
        at org.apache.hadoop.ipc.Client.call(Client.java:1347)  
        at org.apache.hadoop.ipc.Client.call(Client.java:1300)  
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)  
        at $Proxy9.addBlock(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:186)  
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)  
        at $Proxy9.addBlock(Unknown Source)  
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:330)  
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.locateFollowingBlock(DFSOutputStream.java:1226)  
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1078)

看它的报错信息好像是节点没有启动，但是我的节点都启动起来了，使用jps也能查看到节点信息。
使用hadoop dfsadmin -report命令查看磁盘使用情况，发现出现以下问题：

[java] view plain copy
Configured Capacity: 0 (0 B)  
Present Capacity: 0 (0 B)  
DFS Remaining: 0 (0 B)  
DFS Used: 0 (0 B)  
DFS Used%: NaN%  
Under replicated blocks: 0  
Blocks with corrupt replicas: 0  
Missing blocks: 0  
------------------------------------------------- 
Datanodes available: 0 (0 total, 0 dead)