Open access to the Proceedings of the 17th USENIX Conference on File and Storage Technologies (FAST ’19) is sponsored by ScaleCheck: A Single-Machine Approach for Discovering Scalability Bugs in Large Distributed Systems Cesar A. Stuardo, University of Chicago; Tanakorn Leesatapornwongsa, Samsung Research America; Riza O. Suminto, Huan Ke, and Jeffrey F. Lukman, University of Chicago; Wei-Chiu Chuang, Cloudera; Shan Lu and Haryadi S. Gunawi, University of Chicago https://www.usenix.org/conference/fast19/presentation/stuardo This paper is included in the Proceedings of the 17th USENIX Conference on File and Storage Technologies (FAST ’19). February 25–28, 2019 • Boston, MA, USA 978-1-939133-09-0