Database Replication Algorithm Performance in High Speed Networks Under Load Balancing

摘要

Database replication process maintains objects of database like tables, in a number of databases that build a system of distributed database. The database replication requirements are increasing day by day due to the more use of internet. To meet such requirements priorities of request can be used. In this work two classes of requests are considered i.e., Low Priority and High Priority. Low priority requests are not so important and they can be delayed or drooped over high priority requests. For example, downloading a song is low priority requests, while information send by defense applications are high priority requests. The request loss rate can be further reduced using load balancing conditions where some of the contending requests sent to some other nodes, and they reach their destination using some alternative paths. In view of above aspects performance evaluation of M-PDDRA (Modified Pre-bringing Based Dynamic Data Replication Algorithm) is done using computer simulation.