Jepsen 9: A Fsyncing Feeling
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Distributed systems often claim to save our data durably, to provide isolated transactions, to make writes visible to reads. Jepsen applies property-based testing to those databases to verify their correctness claims during common failure modes: network partitions, process crashes, and clock skew. The results may be surprising.
Author of Riemann monitoring system and Jepsen series on distributed systems correctness