Database and Expert Systems Applications by Sven Hartmann & Hui Ma

Author:Sven Hartmann & Hui Ma
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

5 Conclusion

In this paper, we presented a novel model-based approach to database stress testing, MoDaST. It leverages a state machine to figure out the internal state of DBMS at run time. We evaluated MoDaST on two popular DBMS: PostgreSQL and VoltDB. Our results show that MoDaST can successfully infer their current internal state based on the state model. We also found out that submitting a high workload can lead to exercising the kernel in many different ways that is not possible by the current testing tools. Consequently, we identified new bugs in both DBMS. In particular, one of the bugs is already confirmed as “major bug” and promptly fixed by the VoltDB hackers. Our future work includes applying MoDaST to NoSQL and Streaming DBMS, since they implement different levels of concurrency control for transaction processing and, therefore, require different testing assumptions.

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