AMBARI-1200. On some clusters, Nagios alerts show up about 30 seconds after page load, while on others the alerts show up immediately. (srimanth via yusaku)

git-svn-id: https://svn.apache.org/repos/asf/incubator/ambari/trunk@1434522 13f79535-47bb-0310-9956-ffa450edef68