使用负载均衡器构建NTP集群及其在互动电视系统中的应用

摘要

With the interactive TV system covers the breadth and depth increasing , the types and business types in the network equipment is becoming more and more the number of servers is growing .All kinds of serv-ers, network devices to use time is provided by the equipment internal clock .Due to the server , network e-quipment itself clock error is inevitable , although this error is not every day , but after a period of accumulation would be a big time lag , which can lead to network servers , network equipment in time .For interactive televi-sion system , if there are time , can cause abnormal operation of the whole system , and user can't be serious in-fluence on demand .So build a NTP cluster system to improve stability , reliability, NTP clock system is very necessary .%随着互动电视系统覆盖的广度和深度不断加大，网络中的设备种类和业务类型越来越多，服务器的数量也与日俱增，各种服务器、网络设备使用的时间都是由设备内部时钟来提供的，由于服务器、网络设备本身的时钟误差是不可避免的，尽管这种误差每天不大，但经过一段时间的累积就会出现大的时间差，从而导致网络中各服务器、网络设备的时间不一致。对于互动电视系统，如果出现时间的不一致，就会造成整个系统运行异常或用户无法点播的严重影响，因此构建一套NTP集群系统来提高NTP时钟系统稳定性、可靠性是十分必要的。