Complete with nervous warnings: how much chaos is too much?
Tim Anderson Tue 16 Mar 2021 // 17:15 UTC Share
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AWS has rolled out its Fault Injection Simulator (FIS), designed to introduce deliberate faults into its cloud services so that users can test the resilience of their applications.
Chaos engineering is useful for discovering what actually happens in the event of a failure, observing the principle that administrators cannot know whether something like a failover system will work as expected until there is an actual outage.
It can also be used to test the impact of things like services that are slow to respond, or which encounter bad data, or which run out of memory. The idea is not only to avoid catastrophe but also to measure the outcome and its potential impact on a business.