zookeeper客户端连接sesion问题

2017-11-30 17:56:24,776 [main-SendThread(zookeeper.host:2181)] WARN org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:1102) - Session 0x15f4c7937b4004b for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081)

关闭消费者，等session过期再重启。