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Posts by Benoît Canet


Fault-injecting filesystem cookbook

Block devices sometimes do bad things (or just fill up), so sometimes bad things happen to good software. CharybdeFS makes it easy to do integration testing that covers hard-to test filesystem errors. And good error handling is a sign of well-thought-out software. For example, your program will make a much better impression on users if you have it show a nice “insufficient space” message than if it just crashes for no apparent reason. The CharybdeFS filesystem lets you inject arbitrary file errors for testing. This article covers some common examples for getting started.

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CharybdeFS: a new fault-injecting filesystem for software testing

This is the third part in our blog series on Scylla testing. Part 1 covers Apache Cassandra compatibility testing, and Part 2 covers Jepsen tests.

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