异常:
2014-02-16 22:07:19,284 [myid:] - WARN [main-SendThread(192.168.177.128:2181):ClientCnxn$SendThread@1089] - Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect java.net.ConnectException: Connection timed out: no further information at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068) Exception in thread "main" org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for / at org.apache.zookeeper.KeeperException.create(KeeperException.java:99) at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1468) at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1496) at org.apache.zookeeper.ZooKeeperMain.processZKCmd(ZooKeeperMain.java:725) at org.apache.zookeeper.ZooKeeperMain.processCmd(ZooKeeperMain.java:593) at org.apache.zookeeper.ZooKeeperMain.executeLine(ZooKeeperMain.java:365) at org.apache.zookeeper.ZooKeeperMain.run(ZooKeeperMain.java:323) at org.apache.zookeeper.ZooKeeperMain.main(ZooKeeperMain.java:282)
windows上可以ping通linux server,但是zookeeper 客户端始终连接不上,最终查找到原因是 linux启用了防火墙。
关闭防火墙:
service iptables stop (不需要重启,但是重启后失效)