Cluster Computing and the Grid, IEEE International Symposium on (2010)
Melbourne, VIC, Australia
May 17, 2010 to May 20, 2010
Current service-level agreements (SLAs) offered by cloud providers do not make guarantees about response time of Web applications hosted on the cloud. Satisfying a maximum average response time guarantee for Web applications is difficult due to unpredictable traffic patterns. The complex nature of multi-tier Web applications increases the difficulty of identifying bottlenecks and resolving them automatically. It may be possible to minimize the probability that tiers (hosted on virtual machines) become bottlenecks by optimizing the placement of the virtual machines in a cloud. This research focuses on enabling clouds to offer multi-tier Web application owners maximum response time guarantees while minimizing resource utilization. We present our basic approach, preliminary experiments, and results on a EUCALYPTUS-based testbed cloud. Our preliminary results shows that dynamic bottleneck detection and resolution for multi-tier Web application hosted on the cloud will help to offer SLAs that can offer response time guarantees.
cloud computing, service level agreement, multitier Web applications, dynamic resource management, application placement, bottleneck detection, bottleneck resolution
D. Carrera, W. Iqbal and M. N. Dailey, "SLA-Driven Dynamic Resource Management for Multi-tier Web Applications in a Cloud," Cluster Computing and the Grid, IEEE International Symposium on(CCGRID), Melbourne, VIC, Australia, 2010, pp. 832-837.