Quotation Baughman, Matt, Caton, Simon, Haas, Christian, Chard, Ryan, Wolski, Rich, Foster, Ian, Chard, Kyle. 2019. Deconstructing the 2017 Changes to AWS Spot Market Pricing. In Proceedings of the 10th Workshop on Scientific Cloud Computing, Hrsg. ScienceCloud 2019, 19-26. New York, New York, USA: None.


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Abstract

The Amazon Web Services spot market sells excess computing capacity at a reduced price and with reduced reliability guarantees. The low cost nature of the spot market has led to widespread adoption in industry and science. However, one of the challenges with using the spot market is that it is intentionally opaque and thus users have little understanding of the underlying dynamics. In late 2017, the mechanisms underlying the spot market were significantly altered-no longer are bid prices used to clear capacity and as a result the pricing is much less volatile. In this paper, we revisit prior work with the aim to analyze the differences in market dynamics between the pre-change and post-change spot instance market. We then use these analyses to highlight possible properties of the current and previous pricing algorithms, including artificial manipulation, dynamic algorithm adjustment, and persistent trends in market supply, demand, and pricing.

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Publication's profile

Status of publication Published
Affiliation External
Type of publication Contribution to conference proceedings
Language English
Title Deconstructing the 2017 Changes to AWS Spot Market Pricing
Title of whole publication Proceedings of the 10th Workshop on Scientific Cloud Computing
Editor ScienceCloud 2019
Page from 19
Page to 26
Location New York, New York, USA
Year 2019
ISBN 9781450367585
URL http://dl.acm.org/citation.cfm?doid=3322795.3331465
Open Access N

Associations

People
Haas, Christian (Details)
External
Baughman, Matt (University of Chicago, United States/USA)
Caton, Simon (University College Dublin, Ireland)
Chard, Kyle (University of Chicago, United States/USA)
Chard, Ryan (University of Chicago, United States/USA)
Foster, Ian (University of Chicago, United States/USA)
Wolski, Rich (University of California - Santa Barbara, United States/USA)
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