NDLI: SETSUDŌ: perturbation-based testing framework for scalable distributed systems

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SETSUDŌ: perturbation-based testing framework for scalable distributed systems

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SETSUDŌ: perturbation-based testing framework for scalable distributed systems

Content Provider	ACM Digital Library
Author	Papakonstantinou, Nadia Balakrishnan, Gogul Gupta, Aarti Joshi, Pallavi Ganai, Malay
Abstract	Modern scalable distributed systems are designed to be partition-tolerant. They are often required to support increasing load in service requests elastically, and to provide seamless services even when some servers malfunction. Partition-tolerance enables such systems to withstand arbitrary loss of messages as "perceived" by the communicating nodes. However, partition-tolerance and robustness are not tested rigorously in practice. Often severe system-level design defects stay hidden even after deployment, possibly resulting in loss of revenue or customer satisfaction. We propose a novel perturbation-based rigorous testing framework, named SETSUDŌ, especially targeted to expose system-level defects in scalable distributed systems. It applies perturbations (i.e., controlled changes) from the environment of a system during testing, and leverages awareness of system-internal states to precisely control their timing. It uses a flexible instrumentation framework to select relevant internal states and to implement the system code for perturbations. It also provides a test policy language framework, where sequences of perturbation scenarios at a high level are converted automatically to system-level test code. This test code is weaved-in automatically with application code during testing, and any observed defects are reported. We have implemented our perturbation testing framework and demonstrate its evaluation on several open source projects, where it was successful in exposing known, as well as some unknown, defects. Our framework leverages small-scale testing, and avoids upfront infrastructure costs typically needed for large-scale stress testing.
Starting Page	1
Ending Page	14
Page Count	14
File Format	PDF
ISBN	9781450324632
DOI	10.1145/2524211.2524217
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2013-11-03
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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