Abstract:
Many real-time applications need data
services in distributed environments. Replication can
help distributed real-time database systems meet the
stringent time requirements of application
transactions. In this system, we present a dynamic
replication control algorithm, On-demand Real-time
Decentralized Replication with Replica Sharing
(ORDER-RS), designed for distributed real- time
database systems. In the propose system, the weather
forecast data replicas are dynamically created upon
the requests by the incoming transactions and their
update frequencies are determined by the data
freshness requirements of these transactions.
