Building a Cloud for Yahoo

Yahoo! is building a set of scalable, highly-available datastorage and processing services, and de- ploying them in a cloud model to make application developmen t and ongoing maintenance significantly easier. In this paper we discuss the vision and requirements , as well as the components that will go into the cloud. We highlight the challenges and research questio ns that arise from trying to build a com- prehensive web-scale cloud infrastructure, emphasizing d ata storage and processing capabilities. (The Yahoo! cloud infrastructure also includes components for p rovisioning, virtualization, and edge content delivery, but these aspects are only briefly touched on.)