Deconstructing the 2017 Changes to AWS Spot Market Pricing

Matt Baughman, Simon Caton, Christian Haas, Ryan Chard, Rich Wolski, Ian Foster, Kyle Chard

Publikation: Beitrag in Buch/KonferenzbandBeitrag in Konferenzband

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.
OriginalspracheEnglisch
Titel des SammelwerksProceedings of the 10th Workshop on Scientific Cloud Computing
Herausgeber*innen ScienceCloud 2019
ErscheinungsortNew York, New York, USA
Seiten19 - 26
PublikationsstatusVeröffentlicht - 2019

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