9 Backpressure
In this chapter
- an introduction to backpressure
- when backpressure is triggered
- how backpressure works in local and distributed systems
“Never trust a computer you can’t throw out a window.”
—Steve Wozniak
Be prepared for unexpected events is a critical rule when building any distributed systems, and streaming systems are not exceptions. In this chapter, we are going to learn a widely supported failure handling mechanism in streaming systems: backpressure. It is very useful for protecting a streaming system from breaking down under some unusual scenarios.
Reliability is critical
In chapter 4, the team built a stream processing system to process transactions and detect credit card fraud. It works well, and customers are happy so ...
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