Title :
QoS Auditing for Evaluation of SLA in Cloud-based Distributed Services
Author :
Ravindran, Kaliappa
Author_Institution :
Dept. of Comput. Sci., City Univ. of New York, New York, NY, USA
fDate :
June 28 2013-July 3 2013
Abstract :
Given cloud-based realization of a distributed system S, QoS auditing enables risk analysis and accounting of SLA violations under various security threats and resource depletions faced by S. The problem of QoS failures and security infringements arises due to the third-party control of cloud resources and components that are used in realizing the application-oriented service exported by S. The less-than-100% trust between the various sub-systems of S is a major issue that necessitates a probabilistic analysis of the application behavior relative to the SLA negotiated with S. In this light, QoS auditing allows reasoning about how good the SLA is complied by S in the face of hostile environment conditions. The paper describes case studies of CDN and replicated web service realized on a cloud.
Keywords :
Web services; cloud computing; contracts; quality of service; security of data; CDN; QoS auditing; QoS failures; SLA evaluation; SLA violations accounting; application behavior; application-oriented service exported; cloud resources; cloud-based distributed services; content distribution network; probabilistic analysis; quality of service; replicated Web service; resource depletions; risk analysis; security infringements; security threats; service level agreements; third-party control; Availability; Cognition; Fault tolerance; Fault tolerant systems; Quality of service; Servers; Web services;
Conference_Titel :
Services (SERVICES), 2013 IEEE Ninth World Congress on
Conference_Location :
Santa Clara, CA
Print_ISBN :
978-0-7695-5024-4
DOI :
10.1109/SERVICES.2013.74
