Supporting Quality of Service in Scientific Workflows: a Novel Approach to Workflow Quality of Service That Utilizes Infrastructure As a Service (Iaas)-based Cloud Platforms - Tim Dörnemann - Livros - Südwestdeutscher Verlag für Hochschulsch - 9783838132341 - 23 de outubro de 2013
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Supporting Quality of Service in Scientific Workflows: a Novel Approach to Workflow Quality of Service That Utilizes Infrastructure As a Service (Iaas)-based Cloud Platforms

Tim Dörnemann

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Supporting Quality of Service in Scientific Workflows: a Novel Approach to Workflow Quality of Service That Utilizes Infrastructure As a Service (Iaas)-based Cloud Platforms

In this book, the use of the industry standard BPEL, a Turing-complete workflow language for modeling business processes, is proposed for the modeling and the execution of scientific workflows. BPEL is well suited for the modeling of scientific workflows, but existing implementations of the standard lack important properties ? such as availability, reliability, and scalability ? that are necessary for the execution of scientific workflows. This work presents components that extend an existing implementation of the BPEL standard and eliminate the identified weaknesses. Those components include a provisioner which enables the system to automatically provision virtual machines from Cloud environments. It is steered by a multi-objective genetic scheduling algorithm that takes data flow dependencies and cost into account. A policy-based fault-tolerance component improves reliability and availability of the system by using a variety of mechanisms, including Cloud-based substituion of faulty servers. Lastly, a comprehensive suite of easy-to-use graphical development and modeling tools is presented.

Mídia Livros     Paperback Book   (Livro de capa flexível e brochura)
Lançado 23 de outubro de 2013
ISBN13 9783838132341
Editoras Südwestdeutscher Verlag für Hochschulsch
Páginas 236
Dimensões 150 × 14 × 225 mm   ·   369 g
Idioma German