baidu了很多，都说防火墙，datanode没有正常启动的问题，可是检查了都是正常，后来还是在老外的网站上找到了解决的方法

修改了/etc/security/limits.conf文件，上传成功

这些hadoop的报错都是莫名其妙，从这个日志无法看出是这个的问题，看来还是要自己慢慢积累

* soft nofile 65536

* hard nofile 65536

hadoop dfs -put 1.txt /input/

报错日志如下：

15/06/24 14:45:40 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

15/06/24 14:45:41 INFO hdfs.DFSClient: Exception in createBlockOutputStream

java.io.EOFException: Premature EOF: no length prefix available

at org.apache.hadoop.hdfs.protocolPB.PBHelper.vintPrefixed(PBHelper.java:2103)

at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1380)

at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1302)

at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:536)

15/06/24 14:45:41 INFO hdfs.DFSClient: Abandoning BP-651950990-127.0.0.1-1435153229562:blk_1073741839_1015

15/06/24 14:45:41 INFO hdfs.DFSClient: Excluding datanode 10.25.5.102:50010

15/06/24 14:45:41 INFO hdfs.DFSClient: Exception in createBlockOutputStream

java.io.EOFException: Premature EOF: no length prefix available

at org.apache.hadoop.hdfs.protocolPB.PBHelper.vintPrefixed(PBHelper.java:2103)

at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1380)

at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1302)

at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:536)

15/06/24 14:45:41 INFO hdfs.DFSClient: Abandoning BP-651950990-127.0.0.1-1435153229562:blk_1073741840_1016

15/06/24 14:45:41 INFO hdfs.DFSClient: Excluding datanode 10.25.5.101:50010

15/06/24 14:45:41 WARN hdfs.DFSClient: DataStreamer Exception

org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /input/1.txt._COPYING_ could only be replicated to 0 nodes instead of minReplication (=1).  There are 2 datanode(s) running and 2 node(s) are excluded in this operation.

at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget(BlockManager.java:1492)

at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:3027)

at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:614)

at org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.addBlock(AuthorizationProviderProxyClientProtocol.java:188)

at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:476)

at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)

at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:587)

at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1026)

at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2013)

at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2009)

at java.security.AccessController.doPrivileged(Native Method)

at javax.security.auth.Subject.doAs(Subject.java:422)

at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1614)

at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2007)

at org.apache.hadoop.ipc.Client.call(Client.java:1411)

at org.apache.hadoop.ipc.Client.call(Client.java:1364)

at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)

at com.sun.proxy.$Proxy9.addBlock(Unknown Source)

at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:391)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:497)

at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)

at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)

at com.sun.proxy.$Proxy10.addBlock(Unknown Source)

at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.locateFollowingBlock(DFSOutputStream.java:1473)

at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1290)

at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:536)

put: File /input/1.txt._COPYING_ could only be replicated to 0 nodes instead of minReplication (=1).  There are 2 datanode(s) running and 2 node(s) are excluded in this operation.

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