Enabling and Achieving Self-Management for Large Scale Distributed Systems: Platform and Design Methodology for Self-Management

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Al-Shishtawy, Ahmad,1978-KTH,Programvaru- och datorsystem, SCS (författare)

Enabling and Achieving Self-Management for Large Scale Distributed Systems : Platform and Design Methodology for Self-Management

BokEngelska2010

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Stockholm :Universitetsservice US AB,2010
42 s.
electronicrdacarrier

Nummerbeteckningar

LIBRIS-ID:oai:DiVA.org:kth-12377
ISBN:9789174155891
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-12377URI

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Språk:engelska
Sammanfattning på:engelska

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Trita-ICT-ECS AVH,1653-6363 ;10:01

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QC 20100520
Autonomic computing is a paradigm that aims at reducing administrative overhead by using autonomic managers to make applications self-managing. To better deal with large-scale dynamic environments; and to improve scalability, robustness, and performance; we advocate for distribution of management functions among several cooperative autonomic managers that coordinate their activities in order to achieve management objectives. Programming autonomic management in turn requires programming environment support and higher level abstractions to become feasible. In this thesis we present an introductory part and a number of papers that summaries our work in the area of autonomic computing. We focus on enabling and achieving self-management for large scale and/or dynamic distributed applications. We start by presenting our platform, called Niche, for programming self-managing component-based distributed applications. Niche supports a network-transparent view of system architecture simplifying designing application self-* code. Niche provides a concise and expressive API for self-* code. The implementation of the framework relies on scalability and robustness of structured overlay networks. We have also developed a distributed file storage service, called YASS, to illustrate and evaluate Niche. After introducing Niche we proceed by presenting a methodology and design space for designing the management part of a distributed self-managing application in a distributed manner. We define design steps, that includes partitioning of management functions and orchestration of multiple autonomic managers. We illustrate the proposed design methodology by applying it to the design and development of an improved version of our distributed storage service YASS as a case study. We continue by presenting a generic policy-based management framework which has been integrated into Niche. Policies are sets of rules that govern the system behaviors and reflect the business goals or system management objectives. The policy based management is introduced to simplify the management and reduce the overhead, by setting up policies to govern system behaviors. A prototype of the framework is presented and two generic policy languages (policy engines and corresponding APIs), namely SPL and XACML, are evaluated using our self-managing file storage application YASS as a case study. Finally, we present a generic approach to achieve robust services that is based on finite state machine replication with dynamic reconfiguration of replica sets. We contribute a decentralized algorithm that maintains the set of resource hosting service replicas in the presence of churn. We use this approach to implement robust management elements as robust services that can operate despite of churn.

Ämnesord och genrebeteckningar

NATURVETENSKAP Data- och informationsvetenskap Datavetenskap hsv//swe
NATURAL SCIENCES Computer and Information Sciences Computer Sciences hsv//eng
Autonomic Computing
Self-Management
Distributed Systems
Computer science
Datavetenskap

Biuppslag (personer, institutioner, konferenser, titlar ...)

Vlassov, Vladimir,DocentKTH,Programvaru- och datorsystem, SCS (preses)
Haridi, Seif,ProfessorKTH,Programvaru- och datorsystem, SCS (preses)
Van Roy, Peter,ProfessorCatholic University of Louvain (UCL), Belgium (opponent)
KTHProgramvaru- och datorsystem, SCS (creator_code:org_t)

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