January 2019
Intermediate to advanced
376 pages
8h 49m
English
Content preview from Property-Based Testing with PropEr, Erlang, and ElixirBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Testing a Circuit Breaker
Circuit breakers are one of the most interesting concepts in fault isolation for reliable systems. They are used to account for errors that happen over time in a part of the system. If the frequency at which the errors happen is considered too high compared to the successful cases, the breaker is tripped. Once tripped, further calls automatically fail before having a chance to reach the subsystem gated by the breaker. The idea is that failures tend to be costly and take a lot of time; and a failing system under heavy stress is even harder to get back into a usable state. The circuit breaker allows you to prevent the client from doing work that would result in expensive failures and directly turn them into a cheap failures, ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.