This paper provide provide wide range of services and mechanism for access those mechanism via heterogeneous devices. The services set include: robustness, scalability, distributed Internet services. The architecture assumes the four basic components:
* powerful workstation cluster environments with a software platform that simplifies scalable service construction;
* units, which are the devices by which users access the services;
* active proxies, which are transformational elements that are used for unit- or service-speci®c adaptation;
* and paths, which are an abstraction through which units, services, and active proxies are composed.
2010/07/16
Resilient Workload Manager Framework
"In data centers hosting scaling Internet applications, operators face the tradeoff dilemma between resource efficiency and Quality of Service (QoS), and the root cause lies in workload dynamics. In this paper, we address the problem with the design of Resilient Workload Manager (ROM). ROM explicitly segregates base workload and trespassing workload, the two naturally different components in application workload, and manages them separately in two resource zones with specialized optimization techniques.
As a comprehensive workload management framework, ROM covers workload, data, resource, and Quality of Service of the target applications. It features a fast workload factoring algorithm for distributing incoming application requests, not only on volume but also on content, between the two resource zones; integrated two-dimensional workload shaping, resource planning, and request dispatching schemes for efficient utilization of base workload zone resource; and a simple and high-performance system architecture for dynamic provisioning in trespassing workload zone. Through extensive evaluation, we showed ROM can achieve resource efficiency (e.g., 54.9% server saving) guarantee QoS (based on client-side perceived service quality), reduce data access overhead in the trespassing workload zone during peak load (up to two orders of magnitude), and be adaptive at processing speed (running faster at peak load periods than at regular periods)."
As a comprehensive workload management framework, ROM covers workload, data, resource, and Quality of Service of the target applications. It features a fast workload factoring algorithm for distributing incoming application requests, not only on volume but also on content, between the two resource zones; integrated two-dimensional workload shaping, resource planning, and request dispatching schemes for efficient utilization of base workload zone resource; and a simple and high-performance system architecture for dynamic provisioning in trespassing workload zone. Through extensive evaluation, we showed ROM can achieve resource efficiency (e.g., 54.9% server saving) guarantee QoS (based on client-side perceived service quality), reduce data access overhead in the trespassing workload zone during peak load (up to two orders of magnitude), and be adaptive at processing speed (running faster at peak load periods than at regular periods)."
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