On Controlling Elasticity of Cloud Applications in CELAR

Abstract

Today's complex cloud applications are composed of multiple components executed in multi-cloud environments. For such applications, the possibility to manage and control their cost, quality, and resource elasticity is of paramount importance. However, given that the cost of different services offered by cloud providers can vary a lot with their quality/performance, elasticity controllers must consider not only complex, multi-dimensional preferences and provisioning capabilities from stakeholders but also various runtime information regarding cloud applications and their execution environments. In this chapter, the authors present the elasticity control approach of the EU CELAR Project, which deals with multi-dimensional elasticity requirements and ensures multi-level elasticity control for fulfilling user requirements. They show the elasticity control mechanisms of the CELAR project, from application description to multi-level elasticity control. The authors highlight the usefulness of CELAR's mechanisms for users, who can use an intuitive, user-friendly interface to describe and then to follow their application elasticity behavior controlled by CELAR.

A network approach for managing and processing big cancer data in clouds

“…The works in [23] solve the problem of optimizing the resources of each virtual machine (CPU, memory, etc) to achieve maximum performance, while the work in [24] mainly target at energy efficient cloud solution. We need a fully automated and highly customizable cloud platform that performs elastic resource provisioning to various data networks [6,25].…”

“…We employ cloud computing platform to support the CDN approach. Particularly the CELAR cloud platform [5,6] is selected as the CDN cloud platform because CELAR delivers a fully automated and highly customisable cloud platform for elastic provisioning of resources.…”

SCAN: A Smart Application Platform for Empowering Parallelizations of Big Genomic Data Analysis in Clouds

“…Within the EU FP7 CELAR project [17], the SCAN has been implemented in conjunction with CELAR cloud middleware development [18]. The CELAR cloud is a fully automated and highly customisable system for elastic provisioning of resources in cloud computing platforms.…”