NSF PI Meeting: The Science of Cloud Computing
نویسنده
چکیده
DBMSs powering cloud application platforms must serve large numbers of applications with unpredictable load patterns while minimizing the operating cost leveraging the underlying pay-per-use infrastructure. We have designed ElasTraS, an Elastic TranSactional relational database for cloud platforms. ElasTraS is a confluence of two major design philosophies: traditional relational database systems (RDBMS) that allow the efficient execution of OLTP workloads and provide ACID guarantees for small databases and the Key-value stores that are elastic, scalable, and highly available. Effective resource sharing and the consolidation of multiple tenants on a single server allows ElasTraS to efficiently manage tenants with small data and resource requirements, while advanced database partitioning and live migration allows it to serve tenants that grow, both in terms of data as well as load. ElasTraS achieves low overhead on-demand elasticity using live migration of tenant databases allowing expansion of the cluster size during high load and consolidation during usage troughs.
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