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DQMP: A Decentralized Protocol to Enforce Global Quotas in Cloud Environments

  • Johannes Behl
  • Tobias Distler
  • Rüdiger Kapitza
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7596)

Abstract

Platform-as-a-Service (PaaS) clouds free companies of building infrastructures dimensioned for peak service demand and allow them to only pay for the resources they actually use. Being a PaaS cloud customer, on the one hand, offers a company the opportunity to provide applications in a dynamically scalable way. On the other hand, this scalability may lead to financial loss due to costly use of vast amounts of resources caused by program errors, attacks, or careless use.

To limit the effects of involuntary resource usage, we present DQMP, a decentralized, fault-tolerant, and scalable quota-enforcement protocol. It allows customers to buy a fixed amount of resources (e.g., CPU cycles) that can be used flexibly within the cloud. DQMP utilizes the concept of diffusion to equally balance unused resource quotas over all processes running applications of the same customer. This enables the enforcement of upper bounds while being highly adaptive to all kinds of resource-demand changes. Our evaluation shows that our protocol outperforms a lease-based centralized implementation in a setting with 1,000 processes.

Keywords

Cloud Computing Fault Tolerance Cloud Provider Average Response Time Resource Controller 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Johannes Behl
    • 1
  • Tobias Distler
    • 2
  • Rüdiger Kapitza
    • 1
  1. 1.TU BraunschweigGermany
  2. 2.Friedrich–Alexander University Erlangen–NurembergGermany

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