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ThinkMind // CLOUD COMPUTING 2013, The Fourth International Conference on Cloud Computing, GRIDs, and Virtualization // View article cloud_computing_2013_4_30_20118


Elastic-TOSCA: Supporting Elasticity of Cloud Application in TOSCA

Authors:
Rui Han
Moustafa M. Ghanem
Yike Guo

Keywords: TOSCA; cloud; elasticity; scaling approaches; queueing system

Abstract:
The Topology and Orchestration Specification for Cloud Applications (TOSCA) is an emerging framework aiming at enhancing the portability of cloud applications by standardizing their life cycle management in a vendor-neutral way. TOSCA captures the description of cloud application and infrastructure services, the relationships between parts of the services, and the operational behavior of these services (e.g., deploy, patch, shutdown). However, it lacks support for the equally important aspect of managing elasticity, i.e., managing the dynamic scaling of cloud applications at run-time. In this work we present the Elastic-TOSCA framework, which extends TOSCA to address this issue. We then describe how Elastic-TOSCA can be used to support a variety of analytical model-based approaches for elasticity management in complex cloud applications. We further provide a detailed example describing how Elastic TOSCA can be used to support easily a dynamic scaling approach based on a queueing system model. Using a case study for managing the elasticity of a multi-tier e-commerce service, we demonstrate the effectiveness of both the Elastic-TOSCA framework and the scaling approach used.

Pages: 93 to 100

Copyright: Copyright (c) IARIA, 2013

Publication date: May 27, 2013

Published in: conference

ISSN: 2308-4294

ISBN: 978-1-61208-271-4

Location: Valencia, Spain

Dates: from May 27, 2013 to June 1, 2013

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