Distributed Real-Time Transaction Processing

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Many real-world applications such as airline reservations and stock markets require real-time response while interacting with large, geographically distributed, databases. Transactions in such a system have deadlines, but there are no catastrophic events if a deadline is missed; however, a penalty must be paid for late completion (same concept as paying your taxes after the April 30 deadline). The primary goal is to meet the deadlines, but for transactions that miss it, the delay must be minimized. For instance, a typical requirement may be that 95% of transactions complete in less than 2 seconds. Prior to building large/expensive networks and distributed systems, efficient protocols must be designed and tested to demonstrate their optimal performance under a variety of conditions. To do this cost-effectively, we propose a modular approach for development and testing in a simulated environment. Among other things, the simulator should be capable of simulating low, moderate and high load conditions. An interactive graphical user interface would allow a combination of input parameters to define various system configurations and data visualization.