alimama open source mdrill启动后访问蓝鲸任务时出错：Caused by:org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss

启动后，访问：http://IP:1107/mdrill.jsp  蓝鲸任务

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wj03TEqh5dR2rAyE0hXSfq1pEaVNp7DUO7CwAAGEL6FBKmBDGFSFNghBQi/kOaIxOnkMx6IUExNClqZKaQIOsk39x3G51GYyeuotZu0x0DAMBoKFi1LBUg0uGjlxTSdSqdjPGncgoJu28cR85D8bkAAMBIKZRC2u6O2v8ifhSMKi3TI5NsnzmwIz54MLIkjBpJ3Nl3Gx1hA2q3AwAwSgqkkPZeQ/OCV+bxlm0LUcaCSMTRrJpGjuZupbHrNNKxI1rpJqlBAgAAhpc+hRSfFjucXwf8EAEAQA8y20IAAAAGhhQCAADsIIUAAAA7SCEAAMAOUggAALCDFAIAAOwghQAAADsy1tQVK4YlVUr1mrtiUdRgx6ZTpICYcqJwR21Bs6ROa09MhwUAAFYYU0jb3U0Krqeqs6eKsscr7nadsFiqvAavKv40TiHpf6gyqsULX/HZC5Y4o+47AAB2ZPbIhEvWFVsuLiqsniyHm/3WD4u7B5lDSB5S0XeJnEJ025j39WkLAQBgyOSOC8nri9FvaWoISX9fbfnQxBenq3zTcUghAACMPEMKae4mrQ6Nvba5ByQOEOESdI29tu83HVPbSZhCTC0lTlNqd1EGgpTpkclojEl3JwEAAAv0KaTZ3HWEN3rSAxKnE98XGzaigajBd7pOZddx5Pe9vo1k33WC1XHDNBBEhzgZKK0Xph6Z5Pu0hQAAMDoyemT23YYQDhp7bfmb2d0r4itfTgnhLm13p1LZcdvJuJCG23UbnUYjbv/QddZkp5BMpBAAAIZKoXoh0pzb9l4jTCRqChFbMswpZLcpfRpHjWhyTZwwhMgiHGfPbey4btacnUpjr1msO4ZOGQAALMpLIZlzdOO3ftsPE4bjFEohofZeQzP7JhoaEgxJUa9kx22rHxVoC9l3G52Gs9sQDwgAAKzKSiFRkkhGjDYdsXFCbAsJt4kDQW5biDHNhE0ve0LXT9gYI/XIlEghXScamCJ1yugzEAAAOCAZKSQOH0LakBozpNGpyQiS6H2vGZ0q7N52d8SxHel8kJ6LGx88+Ic+yih7BS0oSWTZD4eeRFu223THAABghzmFSOMzpKGgYVzQTUhp6npkNMcMiotU0qNf/ejIGSkkHCGrOYU0ajUsn+o4cs9OwSJsAABgwIwpJBmRmjc0RHyj58xDUYZ6JFU91MEiQcjQbOx041GrGSkkaCYJLyw5aVJXrelQux0AAMtMKaTr5E4eSc1hyVgCJqDOtUmmqESnawqL14TtJVKvTdgRo+300fbI+Elp+VTsCNtj3meFPAAA0DN9Cik+zfXD+Drghw4AAPyC9UIAAAD6jhQCAADsIIUAAAA7SCEAAMAOUggAALCDFAIAAOwghQAAADuKpJDNlaNrt1qm/yl4ePfC9Hrqk1e3pq/pvu/7vu+31hdNRzPYWDAfDQAAjA59CmldX7tw9FrRrzATvLo1rXwntrly9Nri9Vf6E5mCS3j8uxviJw/vXjh6beVh7zcMAACGRN/aQlrX14KcsbEQBI7NlZzU4gdpY+VhmC2EL1PriPmYR69dMAQdAAAwnMqOC4lyg6K1vriw6fumThmDh3fVpg7fN/f4JA0k6QvYWMjILgAAYBhlpJA4Dby6NR01M6iNFmELxMaCtllC23QRxw7TeBFtChE2bq0vHr12IQg9ySWl0wwAABhqpVKIoSHED7ZZu9XyW9fXVh7GvTOpPNFaX4zjQpAeCqaQh3eT2BGeLkk2DBMBAGAUlUkhUW9L6/paqvujbAqJYkTRthDhGNqRs8yaAQBg1BRPIZtyQ8jmSmqcafEemWBqzEY4QSZnzOmF6fVbC8qRVVI0kVpNAADAkOpX1bLstpDoH1FbyMZCuHEPbSHR6eiIAQBgtGWlkPSY08yhpukUEjNO7i2eQoqUMGGmLgAAIyQnhYTvdXk8hzBfRp7wkgoEQu2QtVstNV703haimw+8sUDrCAAAo6SPKUSNDhsL8RANsUcm2azHFPLwrq40CH00AACMmH6lkIA8zjQeJSqGD6EZo3wKCY6vKw1Sfj0aAABglz6FFBgRop3DksoHQYUxw0zaOIVkny6cJJw+fnxwBoUAADCC9CmkRAQZyq8DfogAAKAH/ZqpCwAAUA4pBAAA2EEKAQAAdpBCAACAHaQQAABgBykEAADYQQoBAAB2kEIAAIAdpBAAAGAHKQQAANhBCgEAAHaQQgAAgB2kEAAAYAcpBAAA2EEKAQAAdpBCAACAHaQQAABgBykEAADYQQoBAAB2kEIAAIAdpBAAAGAHKQQAANhBCgEAAHaQQgAAgB2kEAAAYAcpBAAA2EEKAQAAdpBCAACAHaQQAABgBykEAADY8f/WeDIFMjSGrAAAAABJRU5ErkJggg==" alt="" />

即http:/IP:1107/topology.jsp 页面出现如下错误：

HTTP ERROR 500

Problem accessing /topology.jsp. Reason:

    KeeperErrorCode = ConnectionLoss

Caused by:

org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss
    at com.netflix.curator.ConnectionState.getZooKeeper(ConnectionState.java:72)
    at com.netflix.curator.CuratorZookeeperClient.getZooKeeper(CuratorZookeeperClient.java:74)
    at com.netflix.curator.framework.imps.CuratorFrameworkImpl.getZooKeeper(CuratorFrameworkImpl.java:381)
    at com.netflix.curator.framework.imps.ExistsBuilderImpl$2.call(ExistsBuilderImpl.java:149)
    at com.netflix.curator.framework.imps.ExistsBuilderImpl$2.call(ExistsBuilderImpl.java:138)
    at com.netflix.curator.RetryLoop.callWithRetry(RetryLoop.java:85)
    at com.netflix.curator.framework.imps.ExistsBuilderImpl.pathInForeground(ExistsBuilderImpl.java:134)
    at com.netflix.curator.framework.imps.ExistsBuilderImpl.forPath(ExistsBuilderImpl.java:125)
    at com.netflix.curator.framework.imps.ExistsBuilderImpl.forPath(ExistsBuilderImpl.java:34)
    at com.alipay.bluewhale.core.zk.Zookeeper.existsNode(Zookeeper.java:108)
    at com.alipay.bluewhale.core.zk.Zookeeper.mkdirs(Zookeeper.java:127)
    at com.alipay.bluewhale.core.cluster.DistributedClusterState.<init>(DistributedClusterState.java:40)
    at com.alipay.bluewhale.core.cluster.Cluster.mk_distributed_cluster_state(Cluster.java:119)
    at com.alimama.mdrill.partion.GetShards.getCluster(GetShards.java:196)
    at com.alimama.web.Topology.active_storms(Topology.java:19)
    at org.apache.jsp.topology_jsp._jspService(org.apache.jsp.topology_jsp:57)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:109)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:389)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:486)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:380)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401)
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
    at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:326)
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)

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解决方案：关闭CentOS防火墙即可。