rSLA: Monitoring SLAs in Dynamic Service Environments

Abstract

Today's application environments combine Cloud and onpremise infrastructure, as well as platforms and services from different providers to enable quick development and delivery of solutions to their intended users. The ability to use Cloud platforms to stand up applications in a short time frame, the wide availability of Web services, and the application of a continuous deployment model has led to very dynamic application environments. In those application environments, managing quality of service has become more important. The more external service vendors are involved the less control an application owner has and must rely on Service Level Agreements (SLAs). However, SLA management is becoming more difficult. Services from different vendors expose different instrumentation. In addition, the increasing dynamism of application environments entails that the speed of SLA monitoring set up must match the speed of changes to the application environment.This paper proposes the rSLA service and language that is both flexible enough to instrument virtually any environment and agile enough to scale and update SLA management as needed. Using rSLA the time of setting up SLA compliance monitoring of application environments involving infrastructure, platform, and application services can be significantly reduced.

Security SLA Based Monitoring in Clouds

“…It also provides security applications such as access management, software vulnerability scanning and log-based IDS (Splunk IDS). MARS 6 a Cisco monitoring system. It is designed to monitor logs and threats.…”

“…In the following, we present our security SLA monitoring approach, in accordance with the aforementioned steps, based on the rSLA language and framework [6].…”

“…28 m e a s u r e m e n t d i r e c t i v e do 29 entity " / data " 30 type " e v e n t _ s e t i n t e g e r " Our security SLA monitoring approach consists of the extension of the rSLA system [6], in order to support security metrics monitoring, referred to as sec-rSLA. We extend the rSLA language, such that we added the security tag to rSLA language to support different security requirements such as confidentiality, integrity and authentication.…”

“…As presented in [6], a base metric has a measurement directive and a schedule. While a measurement directive specifies how a specific metric can be obtained through an Xlet, the schedule defines the frequency at which measurements are taken.…”

“…In this paper, we propose to extend an existing SLA description language (i.e., rSLA [6]) to support the description of security requirements. We also extend rSLA framework to provide the needed mechanisms that allow the automatic setup of the needed facilities to manage the security SLA and enforce them according to their specification.…”