Testing for Graceful Failure with Vaurien and Marteau
summary
Demonstrates concrete tooling and failures: Marteau (hosted frontend for funkload) spins up AWS workers, runs distributed load tests from a .marto.yml and saves reports; Vaurien (a TCP proxy that injects delays, hangs and protocol-specific errors) flips behaviors live to simulate DB/network faults and reproduce issues such as a SQLAlchemy connection-pool leak that leaves error rates nonzero after a DB restart. Also notes funkload’s limits and a replacement, loads, under development for higher concurrency and real-time metrics.
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chapters (4)
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