zookeeper启动后不能连接，错误信息如下

zhangyg197701 2016-08-23 04:06:16

2016-08-23 00:59:06,990 [myid:1] - INFO [main:FileSnap@83] - Reading snapshot /home/hadoop/zk/zkdata/version-2/snapshot.900000087
2016-08-23 00:59:07,041 [myid:1] - INFO [Thread-1:QuorumCnxManager$Listener@504] - My election bind port: /192.168.110.128:3888
2016-08-23 00:59:07,058 [myid:1] - INFO [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumPeer@714] - LOOKING
2016-08-23 00:59:07,060 [myid:1] - INFO [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@815] - New election. My id = 1, proposed zxid=0xa00000066
2016-08-23 00:59:07,064 [myid:1] - INFO [WorkerReceiver[myid=1]:FastLeaderElection@597] - Notification: 1 (message format version), 1 (n.leader), 0xa00000066 (n.zxid), 0x1 (n.round), LOOKING (n.state), 1 (n.sid), 0xa (n.peerEpoch) LOOKING (my state)
2016-08-23 00:59:07,068 [myid:1] - WARN [WorkerSender[myid=1]:QuorumCnxManager@382] - Cannot open channel to 2 at election address /192.168.110.127:3888
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:368)
at org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:341)
at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.process(FastLeaderElection.java:449)
at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.run(FastLeaderElection.java:430)
at java.lang.Thread.run(Thread.java:744)
2016-08-23 00:59:07,074 [myid:1] - WARN [WorkerSender[myid=1]:QuorumCnxManager@382] - Cannot open channel to 3 at election address /192.168.110.126:3888
java.net.ConnectException: Connection refused

...全文