Caused by: org.jboss.netty.channel.ChannelException: Failed to bind to: /0.0.0.0:20860
at org.jboss.netty.bootstrap.ServerBootstrap.bind(ServerBootstrap.java:272) ~[netty-3.7.0.Final.jar:na]
at com.alibaba.dubbo.remoting.transport.netty.NettyServer.doOpen(NettyServer.java:94) ~[dubbov-2.8.4.jar:2.8.4]
at com.alibaba.dubbo.remoting.transport.AbstractServer.<init>(AbstractServer.java:68) ~[dubbov-2.8.4.jar:2.8.4]
... 40 common frames omitted
Caused by: java.net.BindException: Address already in use: bind
at sun.nio.ch.Net.bind0(Native Method) ~[na:1.7.0_17]
at sun.nio.ch.Net.bind(Net.java:344) ~[na:1.7.0_17]
at sun.nio.ch.Net.bind(Net.java:336) ~[na:1.7.0_17]
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:199) ~[na:1.7.0_17]
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[na:1.7.0_17]
at org.jboss.netty.channel.socket.nio.NioServerBoss$RegisterTask.run(NioServerBoss.java:193) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.channel.socket.nio.AbstractNioSelector.processTaskQueue(AbstractNioSelector.java:366) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:290) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.channel.socket.nio.NioServerBoss.run(NioServerBoss.java:42) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) ~[netty-3.7.0.Final.jar:na]
at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) ~[netty-3.7.0.Final.jar:na]
... 3 common frames omitted
http://blog.csdn.net/jingyulanye/article/details/51451416