hadoop报错，求解！

[口袋里的小龙]

./hdfs dfs -put /home/julong/hadoop/hadoop-2.5.2.tar.gz /
16/11/14 23:45:45 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
16/11/14 23:45:46 INFO hdfs.DFSClient: Exception in createBlockOutputStream
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:599)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:529)
at org.apache.hadoop.hdfs.DFSOutputStream.createSocketForPipeline(DFSOutputStream.java:1526)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1328)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1281)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:526)
16/11/14 23:45:46 INFO hdfs.DFSClient: Abandoning BP-869428200-192.168.1.110-1479195630655:blk_1073741825_1001
16/11/14 23:45:47 INFO hdfs.DFSClient: Excluding datanode 192.168.1.110:50010
16/11/14 23:45:47 INFO hdfs.DFSClient: Exception in createBlockOutputStream
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:599)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:529)
at org.apache.hadoop.hdfs.DFSOutputStream.createSocketForPipeline(DFSOutputStream.java:1526)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1328)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1281)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:526)
16/11/14 23:45:47 INFO hdfs.DFSClient: Abandoning BP-869428200-192.168.1.110-1479195630655:blk_1073741826_1002
16/11/14 23:45:47 INFO hdfs.DFSClient: Excluding datanode 192.168.1.112:50010
16/11/14 23:45:47 INFO hdfs.DFSClient: Exception in createBlockOutputStream
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:599)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:529)
at org.apache.hadoop.hdfs.DFSOutputStream.createSocketForPipeline(DFSOutputStream.java:1526)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1328)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1281)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:526)
16/11/14 23:45:47 INFO hdfs.DFSClient: Abandoning BP-869428200-192.168.1.110-1479195630655:blk_1073741827_1003
16/11/14 23:45:47 INFO hdfs.DFSClient: Excluding datanode 192.168.1.111:50010
16/11/14 23:45:47 WARN hdfs.DFSClient: DataStreamer Exception
org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /hadoop-2.5.2.tar.gz._COPYING_ could only be replicated to 0 nodes instead of minReplication (=1). There are 3 datanode(s) running and 3 node(s) are excluded in this operation.
at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget(BlockManager.java:1471)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2791)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:606)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:455)
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2013)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2009)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1614)
at org.apache.hadoop.ipc.Server$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$Invoker.invoke(ProtobufRpcEngine.java:206)
at com.sun.proxy.$Proxy14.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:187)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at com.sun.proxy.$Proxy14.addBlock(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:368)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.locateFollowingBlock(DFSOutputStream.java:1449)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1270)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:526)
put: File /hadoop-2.5.2.tar.gz._COPYING_ could only be replicated to 0 nodes instead of minReplication (=1). There are 3 datanode(s) running and 3 node(s) are excluded in this operation.
[julong@RedHat01 bin]$ netstat -altne
Active Internet connections (servers and established)

[GWLCGL520]

关于赵老师@zhao4zhong1 列出来的问题，我在网上查找了相关解决方法，这个还是蛮详细的http://javarevisited.blogspot.com/2013/02/java-net-ConnectException-Connection-refused.html

[口袋里的小龙]

这个问题使 hadoop 2.5.2 在使用 put命令 的时候 出现的 集群节点 都是存活状态 ，网上试了好多种做法 每一个可以，也不知道这是为什么 ，在myeclipse中可以正常上传文件 但是在linux中用命令就不报上述错误

[yellomg]

哎呀，这个日志的错误我也看不懂，求高手帮忙~

[口袋里的小龙]

求帮助！

[taisom]

这个错误我也看不懂，帮顶

[赵4老师]

java.net.ConnectException: Connection refused

[赵4老师]

引用 7 楼 u010416069 的回复:

引用 5 楼 GWLCGL520 的回复:

关于赵老师@zhao4zhong1 列出来的问题，我在网上查找了相关解决方法，这个还是蛮详细的http://javarevisited.blogspot.com/2013/02/java-net-ConnectException-Connection-refused.html

给的这个就打不开

人家是墙外的人，跟我们不能比。

[muzilan]

这个问题没遇到过哎，哪个大神帮帮忙，给你帖子高亮下

[口袋里的小龙]

引用 9 楼 muzilanlan 的回复:

这个问题没遇到过哎，哪个大神帮帮忙，给你帖子高亮下

谢谢 啊 ！具体的使用环境时 redhat 6.2 hadoop2.5.2 使用hdfs命令copy文件的时候出现问题，报以上错误信息学，三个虚拟机 分别设置的大小为 20G ，还望哪位大神指点指点 防火墙 已经关闭 selinux也已经设置disabled

[口袋里的小龙]

引用 5 楼 GWLCGL520 的回复:

关于赵老师@zhao4zhong1 列出来的问题，我在网上查找了相关解决方法，这个还是蛮详细的http://javarevisited.blogspot.com/2013/02/java-net-ConnectException-Connection-refused.html

给的这个就打不开

[口袋里的小龙]

问题貌似找到了，我把hosts设置了 把 127.0.0.1改为了 IP地址 竟然好了