Circuit Breaker is a microservice design pattern. In a microservices architecture, it is typical that a request could span multiple services. For any request, if one of the services involved in the response is not working, a circuit Breaker is used to stop the process of request and response.
Without a circuit breaker in place, the client would have continuously sent requests to the service which is down. Resources will get exhausted with low performance and a bad user experience due to this. To avoid this kind of problem, a circuit breaker pattern can be used.
In the case of a circuit breaker pattern, the client will invoke a remote service via a proxy. This proxy will behave as a circuit barrier. In case of failure, when the number of failures crosses a defined threshold number, the circuit breaker will trip for a defined period. During this time, requests to invoke remote service will fail. Once the time-out period for the breaker is complete, a circuit breaker will allow a defined number of tests to pass through, and only when they succeed, a circuit breaker will resume back to normal operation and will start fulfilling the requests.
Posted Date:- 2021-11-27 10:01:53
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