| A Framework for SLA-aware Execution of Grid-based Workflows Contributor(s): Dang, Minh Quan (Author) |
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ISBN: 3836488752 ISBN-13: 9783836488754 Publisher: VDM Verlag Dr. Mueller E.K. OUR PRICE: $69.77 Product Type: Paperback Published: March 2008 |
| Additional Information |
| BISAC Categories: - Computers | Information Technology |
| Physical Information: 0.39" H x 6" W x 9" (0.56 lbs) 184 pages |
| Descriptions, Reviews, Etc. |
| Publisher Description: Service Level Agreements (SLAs) are currently one of the major research topics in Grid Computing, as they serve as a foundation for reliable and predictable Grids. SLAs define an explicit statement of expectations and obligations in a business relationship between provider and customer. Thus, SLAs should guarantee the desired and a-priori negotiated Quality of Service (QoS), which is a mandatory prerequisite for the Next Generation Grids. The complexity of an SLA-based workflow grows significantly, as characteristics of correlated sub-jobs, the data transfer phases, the deadline constraints and possible failures have to be considered. Thus, an architect for an SLA-aware workflow implementation needs sophisticated mechanisms for specification and management, sub-job mapping, data transfer optimization and fault reaction. Therefore, this book presents a system for SLA-aware Grid workflows. The main contributions include an improved specification language for SLA-aware workflows, three mapping and optimization algorithms for sub-job assignment to Grid resources, an error recovery mechanism, and a prototype imple-mentation using standard middleware. |