ElastMan: Autonomic elasticity manager for cloud-based key-value stores
2013 (English)In: HPDC 2013 - Proceedings of the 22nd ACM International Symposium on High-Performance Parallel and Distributed Computing, 2013, 115-116 p.Conference paper (Refereed)
The increasing spread of elastic Cloud services, together with the pay-as-you-go pricing model of Cloud computing, has led to the need of an elasticity controller. The controller automatically resizes an elastic service in response to changes in workload, in order to meet Service Level Objectives (SLOs) at a reduced cost. However, variable performance of Cloud virtual machines and nonlinearities in Cloud services complicates the controller design. We present the design and evaluation of ElastMan, an elasticity controller for Cloud-based elastic key-value stores. ElastMan combines feedforward and feedback control. Feedforward control is used to respond to spikes in the workload by quickly resizing the service to meet SLOs at a minimal cost. Feedback control is used to correct modeling errors and to handle diurnal workload. We have implemented and evaluated ElastMan using the Voldemort key-value store running in a Cloud environment based on OpenStack. Our evaluation shows the feasibility and effectiveness of our approach to automation of Cloud service elasticity.
Place, publisher, year, edition, pages
2013. 115-116 p.
cloud computing, elasticity controller, key-value store
IdentifiersURN: urn:nbn:se:kth:diva-124496DOI: 10.1145/2462902.2462925ScopusID: 2-s2.0-84880070108ISBN: 978-1-4503-1910-2OAI: oai:DiVA.org:kth-124496DiVA: diva2:635849
22nd ACM International Symposium on High-Performance Parallel and Distributed Computing, HPDC 2013; New York, NY; United States; 17 June 2013 through 21 June 2013
ProjectsSSF project End-to-End (E2E) CloudsFP7 EU-project CLOMMUNITYComplex System Engineering project
FunderSwedish Foundation for Strategic Research , RIT10-0043EU, FP7, Seventh Framework Programme, 317879ICT - The Next Generation
QC 201406092013-07-062013-07-062014-06-09Bibliographically approved