Cloud Datacenter Selection Using Service Broker Policies: A Survey

Amid the landscape of Cloud Computing (CC), the Cloud Datacenter (DC) stands as a conglomerate of physical servers, whose performance can be hindered by bottlenecks within the realm of proliferating CC services. A linchpin in CC's performance, the Cloud Service Broker (CSB), orchestrates DC selection. Failure to adroitly route user requests with suitable DCs transforms the CSB into a bottleneck, endangering service quality. To tackle this, deploying an efficient CSB policy becomes imperative, optimizing DC selection to meet stringent Qualityof -Service (QoS) demands. Amidst numerous CSB policies, their implementation grapples with challenges like costs and availability. This article undertakes a holistic review of diverse CSB policies, concurrently surveying the predicaments confronted by current policies. The foremost objective is to pinpoint research gaps and remedies to invigorate future policy development. Additionally, it extensively clarifies various DC selection methodologies employed in CC, enriching practitioners and researchers alike. Employing synthetic analysis, the article systematically assesses and compares myriad DC selection techniques. These analytical insights equip decision -makers with a pragmatic framework to discern the apt technique for their needs. In summation, this discourse resoundingly underscores the paramount importance of adept CSB policies in DC selection, highlighting the imperative role of efficient CSB policies in optimizing CC performance. By emphasizing the significance of these policies and their modeling implications, the article contributes to both the general modeling discourse and its practical applications in the CC domain.