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.
Distributed systems are hard to test, which means that creating a solid set of tests for a distributed database is a substantial software project in itself. Software developer Kyle Kingsbury has invented a full-featured tool for testing distributed systems, called Jepsen. (It’s named after Carly Rae Jepsen.) Jepsen is a flexible tool that can be set up to test a variety of distributed systems, including Apache Cassandra. Jepsen and Cassandra have both made a lot of progress since the original set of tests. Joel Knighton, a developer working at DataStax, has updated and enhanced the Jepsen tests for Cassandra and […]
This series of blog posts will cover how we test Scylla—first of all for stability and correctness, and also to ensure that Scylla keeps Apache Cassandra compatibility constantly as the project proceeds. Software testing is critical, and especially so for a project that needs to achieve compatibility with some previously existing software. This blog series will cover the tests that we put Scylla through.
You can visualize Scylla performance with Tessera and riemann-dash, thanks to collectd support. Scylla can be configured to send data using the collectd protocol, once per second, which makes it easy to keep an eye on the performance of a whole cluster.
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