zookeeper集群部署问题

今天在新的linux主机上部署zookeeper集群，各种配置完成、检查完毕后，启动报错如下：

java.net.NoRouteToHostException: No route to host

        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.connectAll(QuorumCnxManager.java:402)

        at org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:840)

        at org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:762)

当连接集群中其他主机时，找不对端的主机。

原因：

1、hostname和hosts中配置虚拟域名不一致 》》》  验证配置没有问题

2、防火墙打开，需要关闭防火墙

》》》执行防火墙关闭  root用户下执行  service iptables stop  

Flushing firewall rules: [  OK  ]  

Setting chains to policy ACCEPT: filter [  OK  ]  
Unloading iptables modules: [  OK  ]  

关闭后，重启zookeeper就正常了。