zookeeper启动问题，一直报拒绝连接，但是防火墙都关了呀

2017-04-19 17:29:06,190 [myid:] - INFO  [main:QuorumPeerConfig@103] - Reading configuration from: /opt/zookeeper-3.4.8/bin/../conf/zoo.cfg
2017-04-19 17:29:06,214 [myid:] - INFO  [main:QuorumPeer$QuorumServer@149] - Resolved hostname: HadoopSlave2 to address: HadoopSlave2/192.168.70.14
2017-04-19 17:29:06,215 [myid:] - INFO  [main:QuorumPeer$QuorumServer@149] - Resolved hostname: HadoopSlave1 to address: HadoopSlave1/192.168.70.13
2017-04-19 17:29:06,216 [myid:] - INFO  [main:QuorumPeer$QuorumServer@149] - Resolved hostname: 0.0.0.0 to address: /0.0.0.0
2017-04-19 17:29:06,216 [myid:] - INFO  [main:QuorumPeerConfig@331] - Defaulting to majority quorums
2017-04-19 17:29:06,222 [myid:1] - INFO  [main:DatadirCleanupManager@78] - autopurge.snapRetainCount set to 3
2017-04-19 17:29:06,223 [myid:1] - INFO  [main:DatadirCleanupManager@79] - autopurge.purgeInterval set to 0
2017-04-19 17:29:06,223 [myid:1] - INFO  [main:DatadirCleanupManager@101] - Purge task is not scheduled.
2017-04-19 17:29:06,240 [myid:1] - INFO  [main:QuorumPeerMain@127] - Starting quorum peer
2017-04-19 17:29:06,255 [myid:1] - INFO  [main:NIOServerCnxnFactory@89] - binding to port 0.0.0.0/0.0.0.0:2181
2017-04-19 17:29:06,267 [myid:1] - INFO  [main:QuorumPeer@1019] - tickTime set to 2000
2017-04-19 17:29:06,267 [myid:1] - INFO  [main:QuorumPeer@1039] - minSessionTimeout set to -1
2017-04-19 17:29:06,267 [myid:1] - INFO  [main:QuorumPeer@1050] - maxSessionTimeout set to -1
2017-04-19 17:29:06,268 [myid:1] - INFO  [main:QuorumPeer@1065] - initLimit set to 10
2017-04-19 17:29:06,290 [myid:1] - INFO  [main:FileSnap@83] - Reading snapshot /opt/zookeeper-3.4.8/data/version-2/snapshot.1b000012ee
2017-04-19 17:29:06,351 [myid:1] - INFO  [ListenerThread:QuorumCnxManager$Listener@534] - My election bind port: /0.0.0.0:3888
2017-04-19 17:29:06,364 [myid:1] - INFO  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumPeer@774] - LOOKING
2017-04-19 17:29:06,367 [myid:1] - INFO  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@818] - New election. My id =  1, proposed zxid=0x1b00001324
2017-04-19 17:29:06,370 [myid:1] - INFO  [WorkerReceiver[myid=1]:FastLeaderElection@600] - Notification: 1 (message format version), 1 (n.leader), 0x1b00001324 (n.zxid), 0x1 (n.round), LOOKING (n.state), 1 (n.sid), 0x1b (n.peerEpoch) LOOKING (my state)
2017-04-19 17:29:06,375 [myid:1] - WARN  [WorkerSender[myid=1]:QuorumCnxManager@400] - Cannot open channel to 2 at election address HadoopSlave1/192.168.70.13:3888
java.net.ConnectException: 拒绝连接
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:381)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:354)
        at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.process(FastLeaderElection.java:452)
        at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.run(FastLeaderElection.java:433)
        at java.lang.Thread.run(Thread.java:745)
2017-04-19 17:29:06,379 [myid:1] - INFO  [WorkerSender[myid=1]:QuorumPeer$QuorumServer@149] - Resolved hostname: HadoopSlave1 to address: HadoopSlave1/192.168.70.13
2017-04-19 17:29:06,380 [myid:1] - WARN  [WorkerSender[myid=1]:QuorumCnxManager@400] - Cannot open channel to 3 at election address HadoopSlave2/192.168.70.14:3888
java.net.ConnectException: 拒绝连接
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:381)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:354)
        at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.process(FastLeaderElection.java:452)
        at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.run(FastLeaderElection.java:433)
        at java.lang.Thread.run(Thread.java:745)
2017-04-19 17:29:06,381 [myid:1] - INFO  [WorkerSender[myid=1]:QuorumPeer$QuorumServer@149] - Resolved hostname: HadoopSlave2 to address: HadoopSlave2/192.168.70.14
2017-04-19 17:29:06,573 [myid:1] - WARN  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@400] - Cannot open channel to 2 at election address HadoopSlave1/192.168.70.13:3888
java.net.ConnectException: 拒绝连接
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:381)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:426)
        at org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:843)
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