java.net.BindException: Problem binding to [localhost:9820] java.net.BindException: Address already in use; For more details see: http://wiki.apache.org/hadoop/BindException
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:433)
at sun.nio.ch.Net.bind(Net.java:425)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at org.apache.hadoop.ipc.Server.bind(Server.java:535)
at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:919)
at org.apache.hadoop.ipc.Server.<init>(Server.java:2667)
at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:959)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server.<init>(ProtobufRpcEngine.java:367)
at org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:342)
at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:801)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.<init>(NameNodeRpcServer.java:434)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createRpcServer(NameNode.java:796)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:723)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:937)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:916)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1633)
at org.apache.hadoop.hdfs.MiniDFSCluster.createNameNode(MiniDFSCluster.java:1263)
at org.apache.hadoop.hdfs.MiniDFSCluster.configureNameService(MiniDFSCluster.java:1032)
at org.apache.hadoop.hdfs.MiniDFSCluster.createNameNodesAndSetConf(MiniDFSCluster.java:907)
at org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:839)
at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:491)
at org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:450)
at org.apache.hadoop.hdfs.TestAppendSnapshotTruncate.startUp(TestAppendSnapshotTruncate.java:95)
Standard Output