On Availability of Web Cluster Based on RR-DNS
Yanling Wang · Computer Technology and Development · 2008
RR-DNS means round-robin DNS.Puts forward a policy that can improve availability of Web cluster on base of original RR-DNS.The policy can check out every Web service in a certain time,judge every service whether it does work and when one of service has any problems.It can change the information of DNS service in order to avoid accessing the service.Can not only improve load balance of service but also improve the availabitity of cluster by sustaining a list of DNS.