Strategic Behavior and Revenue Management of Cloud Services with Reservation-based Preemption of Customer Instances
2019-04-01·
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0 min read
Dr. Jonathan Chamberlain
Abstract
Cloud computing is a multi billion dollar industry, based around outsourcing the provisioning and maintenance of computing resources. In particular, Infrastructure as a Service (IaaS) enables customers to purchase virtual machines in order to run arbitrary software. IaaS customers are given the option to purchase priority access, while providers choose whether customers are preempted based on priority level. The customer decision is based on their tolerance for preemption. However, this decision is a reaction to the provider choice of preemption policy and cost to purchase priority. In this work, a non-cooperative game is developed for an IaaS system offering resource reservations. An unobservable $M|G|1$ queue with priorities is used to model customer arrivals and service. Customers receive a potential priority from the provider, and choose between purchasing a reservation for that priority and accepting the lowest priority for no additional cost. Customers select the option which minimizes their total cost of waiting. This decision is based purely on statistics, as customers cannot communicate with each other. This work presents the impact of the provider preemption policy choice on the cost customers will pay for a reserved instance. A provider may implement a policy in which no customers are preempted (NP); a policy in which all customers are subject to preemption (PR); or a policy in which only the customers not making reservations are subject to preemption (HPR). It is shown that only the service load impacts the equilibrium possibilities in the NP and PR policies, but that the service variance is also a factor under the HPR policy. These factors impact the equilibrium possibilities associated to a given reservation cost. This work shows that the cost leading to a given equilibrium is greater under the HPR policy than under the NP or PR policies, implying greater incentive to purchase reservations. From this it is proven that a provider maximizes their potential revenue from customer reservations under an HPR policy. It is shown that this holds in general and under the constraint that the reservation cost must correspond to a unique equilibrium.
Type
Authors
Dr. Jonathan Chamberlain
(he/him)
Unaffiliated Researcher
As a Graduate Research Fellow with BU NISLAB, I published a number of papers, including a paper in collaboration with the Ohio State ElectroScience Laboratory stablishing the economic feasibility of sharing for wholesale commercial markets yielding priority to mission critical Earth Exploration Satellite Service-passive (EESS-passive) radiometers which received the Runner-Up accolade for Best Paper on the Policy Track at IEEE DySpan 2024. I was also actively involved in multiple service roles, including serving on the executive board of the Boston University Student Association of Graduate Engineers in various roles, membering on an advisory committee providing feedback for university initiatives and proposed policy updates to the Associate Provost for Graduate Affairs, and co-organized the 10th and 11th editions of the BU Center for Information and Systems Engineering Graduate Student Workshops in 2024 and 2025. For these efforts, as well as my work mentoring students both within the NISLAB and in other projects as well as my published research, I was recognized with the BU ECE Department Doctoral Acheivement Award for the 2024-25 academic year. I additionally had the privilege of participating in the 2025 NSF NeTS Early Career Investigators workshop.