Eclipse running Hadoop program error: Connection refused:no further information

Eclipse running Hadoop program error: Connection refused:no further information

Log4j:warn No appenders could be found forLogger (org.apache.hadoop.conf.Configuration.deprecation). Log4j:warn Please initialize the log4j system Properly.log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.Exception in thread "main" Java.net.ConnectException:Call from lenovo-pc/169.254.33.12 to hadoopmaster:9000 failed on con Nection exception:java.net.ConnectException:
Connection Refused:no further information; For more details See:http://wiki.apache.org/hadoop/connectionrefusedAt Sun.reflect.NativeConstructorAccessorImpl.newInstance0 (Native Method) at sun.reflect.NativeConstructorAcces Sorimpl.newinstance (Nativeconstructoraccessorimpl.java:57) at Sun.reflect.DelegatingConstructorAccessorImpl.newInstance (Delegatingconstructoraccessorimpl.java:45) at Java.lang.reflect.Constructor.newInstance (Constructor.java:526) at Org.apache.hadoop.net.NetUtils.wrapWithMessage (Netutils.java:783) at Org.apache.hadoop.net.NetUtils.wrapException (Netutils.java:730) at Org.apache.hadoop.ipc.Client.call (Client.java:1415) 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. $Proxy 14.getFileInfo (Unknown Source) at Org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProt Ocoltranslatorpb.getfileinfo (Clientnamenodeprotocoltranslatorpb.java:744) 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:30S) 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. $Proxy 15.getFileInfo (Unknown Source) at Org.apache.hadoop.hdfs.DFSClient.getFileInfo (Dfsclie Nt.java:1921) at org.apache.hadoop.hdfs.distributedfilesystem$17.doCall (distributedfilesystem.java:1089) at org.apache.hadoop.hdfs.distributedfilesystem$17.doCall (distributedfilesystem.java:1085) at Org.apache.hadoop.fs.FileSystemLinkResolver.resolve (Filesystemlinkresolver.java:81) at Org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus (Distributedfilesystem.java:1085) at Com.pcitc.hadoop.GetTime.main (Gettime.java:24) caused by:java.net.ConnectException:Connection refused:no further information at SUN.NIO.CH.SOCKETCHANNELIMPL.C Heckconnect (Native Method) at Sun.nio.ch.SocketChannelImpl.finishConnect (Socketchannelimpl.java:739) at Org.apache.hadoop.net.SocketIOWithTimeout.connect (Socketiowithtimeout.java:206) at Org.apache.hadoop.net.NetUtils.connect (Netutils.java:529) at Org.apache.hadoop.net.NetUtils.connect (Netutils.java:493) at Org.apache.hadoop.ipc.client$connection.setupconnection (Client.java:30S) at Org.apache.hadoop.ipc.client$connection.setupiostreams (Client.java:700) at org.apache.hadoop.ipc.client$connection.access$2800 (client.java:367) at Org.apache.hadoop.ipc.Client.getConnection (Client.java:1463) at Org.apache.hadoop.ipc.Client.call (Client.java:1382)    ... More

The simple reason is that the request link is rejected. First, see if the service starts normally, and then see if the environment variable is configured correctly.

Eclipse running Hadoop program error: Connection refused:no further information