The  circuit breaker is a design pattern, used extensively in distributed systems to prevent cascading failures. In this post, we’ll go through the problem of cascading failures and go over how the circuit breaker pattern is used.

Motivation: The problem of cascading failures

Before jumping into the circuit breaker pattern, let’s try and understand what problem it tries to solve.

When service A tries to communicate with service B it allocates a thread to make that call. There are 2 kinds of failures that can occur while making the call. We use the example of a user service making a call to friends service.

#microservices #python #containers-devops