java.net.ConnectException: Call From hadoop000/192.168.241.70 to hadoop000:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791) at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:731) at org.apache.hadoop.ipc.Client.call(Client.java:1508) at org.apache.hadoop.ipc.Client.call(Client.java:1441) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:231) at com.sun.proxy.$Proxy13.create(Unknown Source) at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.create(ClientNamenodeProtocolTranslatorPB.java:313) 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:498) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:258) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:104) at com.sun.proxy.$Proxy14.create(Unknown Source) at org.apache.hadoop.hdfs.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:2146) at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1804) at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1728) at org.apache.hadoop.hdfs.DistributedFileSystem$7.doCall(DistributedFileSystem.java:438) at org.apache.hadoop.hdfs.DistributedFileSystem$7.doCall(DistributedFileSystem.java:434) at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) at org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:434) at org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:375) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:926) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:907) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:804) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:793) at org.apache.flume.sink.hdfs.HDFSDataStream.doOpen(HDFSDataStream.java:81) at org.apache.flume.sink.hdfs.HDFSDataStream.open(HDFSDataStream.java:108) at org.apache.flume.sink.hdfs.BucketWriter$1.call(BucketWriter.java:257) at org.apache.flume.sink.hdfs.BucketWriter$1.call(BucketWriter.java:247) at org.apache.flume.sink.hdfs.BucketWriter$8$1.run(BucketWriter.java:727) at org.apache.flume.auth.SimpleAuthenticator.execute(SimpleAuthenticator.java:50) at org.apache.flume.sink.hdfs.BucketWriter$8.call(BucketWriter.java:724) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)Caused by: java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494) at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:648) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:744) at org.apache.hadoop.ipc.Client$Connection.access$3000(Client.java:396) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1557) at org.apache.hadoop.ipc.Client.call(Client.java:1480) ... 34 more