Modeling Traffic of Big Data Platform for Large Scale Datacenter Networks

Prior to deployment, network designers often use simulators to pre-evaluate the performance of designed network with artificial network traffic. The traditional way of separating network design from real applications will not only result in over-designed network configurations, wasting money and energy, but also miss the real network demands of applications, degrading system performance. In this paper, we provide a method to model the network traffic of current popular big data platforms, which can observably improve the matching between network design and applications. The new method extracts communication behavior from the popular big data applications and replays the behavior instead of the packet traces. Experiments show that the traffic generated by the model is almost match the real traffic and the model can easily scale to thousands of nodes.