我是新来的中观和马拉松服务。我已经设置了3个主服务器和3个从服务器根据www.digitalocean.com. 在主服务器和从服务器中按原样配置。最后，我完成了中观，马拉松，Zookeeper和计时设置。mesos能够以5050、marathon是8080和chronos 4400上市。几个小时后，我的marthon示例显示为错误503

HTTP ERROR: 503
Problem accessing /. Reason:
    Could not determine the current leader
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但是mesos工作得很好。每次我面对这个问题，如果我重新启动马拉松服务和Zookeeper服务，它的工作正常。
马拉松赛跑

Jun 15 06:19:20 master3 marathon[1054]: INFO Waiting for consistent leadership state. Are we leader?: false, leader: Some(192.168.4.78:8080 (mesosphere.marathon.api.LeaderProxyFilter$:qtp522188921-35)
Jun 15 06:19:20 master3 marathon[1054]: INFO Waiting for consistent leadership state. Are we leader?: false, leader: Some(192.168.4.78:8080 (mesosphere.marathon.api.LeaderProxyFilter$:qtp522188921-35)

Zookeeper

2016-06-15 03:41:13,797 - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@197] - Accepted socket connection from /192.168.4.78:38339 
2016-06-15 03:41:13,798 - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@354] - Exception causing close of session 0x0 due to java.io.IOException: ZooKeeperServer not running