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Augmenting Elasticity Controllers for Improved Accuracy
KTH, School of Information and Communication Technology (ICT), Software and Computer systems, SCS.
KTH, School of Information and Communication Technology (ICT), Software and Computer systems, SCS.
KTH, School of Information and Communication Technology (ICT), Software and Computer systems, SCS.
2016 (English)In: 2016 IEEE INTERNATIONAL CONFERENCE ON AUTONOMIC COMPUTING (ICAC), IEEE Computer Society, 2016, p. 117-126Conference paper, Published paper (Refereed)
Abstract [en]

Elastic resource provisioning is used to guarantee service level objectives (SLO) at reduced cost in a Cloud platform. However, performance interference in the hosting platform introduces uncertainty in the performance guarantees of provisioned services. Existing elasticity controllers are either unaware of this interference or over-provision resources to meet the SLO. In this paper, we show that assuming predictable performance of VMs in a multi-tenant environment to scale, will result in long periods of SLO violations. We augment the elasticity controller to be aware of interference and improve the convergence time of scaling without over provisioning. We perform experiments with Memcached and compare our solution against a baseline elasticity controller that is unaware of performance interference. Our results show that augmentation can reduce SLO violations by 65% or more and also save provisioning costs compared to an interference oblivious controller.

Place, publisher, year, edition, pages
IEEE Computer Society, 2016. p. 117-126
Series
Proceedings of the International Conference on Autonomic Computing, ISSN 2474-0756
Keywords [en]
Elasticity, Performance interference, Cloud, Predictable Performance
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:kth:diva-200251DOI: 10.1109/ICAC.2016.60ISI: 000390681200017Scopus ID: 2-s2.0-84991646673ISBN: 978-1-5090-1653-2 (print)OAI: oai:DiVA.org:kth-200251DiVA, id: diva2:1074285
Conference
13th IEEE International Conference on Autonomic Computing (ICAC), JUL 17-22, 2016, Wurzburg, GERMANY
Note

QC 20170215

Available from: 2017-02-15 Created: 2017-02-15 Last updated: 2017-03-07Bibliographically approved

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No full text in DiVA

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Publisher's full textScopushttp://icac2016.uni-wuerzburg.de/

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Vlassov, Vladimir

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  • apa
  • harvard1
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  • modern-language-association-8th-edition
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Output format
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