Circuit Breaker Microservice Design Pattern Tutorial with Examples for API Developers

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In this video we will learn about Circuit Breaker design pattern for microservices. This is the third design principle in Cross-Cutting concern design patterns category for microservices.

Circuit Breaker pattern allows developers to prevent cascading failures in microservices architecture. For example, this pattern works the same as the electric circuit breakers at your home. The electric circuit breaker at your home will automatically turn off and protect your electric devices in case of abnormal behavior in the power supply. Similarly, the proxy used in the circuit breaker pattern literally works as an electric circuit breaker.

The Circuit Breaker pattern prevents an application from performing an operation that is likely to fail. An application can combine this pattern by using the Retry pattern to invoke an operation through a circuit breaker. With the circuit breaker pattern, you can define a threshold value for the number of failures between 2 microservices.

Implementing service breaker is easy. you need to wrap the external service calls in a circuit breaker object which monitors the target service for failures. When there is an issue with dependent services, the circuit breaker trips.

The Circuit Breaker architecture pattern can provide great benefits for fault tolerant design.

** Usage of this Design Pattern **
1. Use this pattern to prevent an application from trying to invoke a remote service that is highly likely to fail.
2. Use this pattern to improve fault tolerant in your application or services.
3. Use this pattern to avoid cascading effect of a service failure.

** Advantages of this Design Pattern **
1. This pattern prevents cascading failures.
2. This pattern handles errors gracefully and provides better under experience.
3. This pattern reduces the application downtimes.
4. This pattern suitable for handling asynchronous communications.
5. This state changes of the circuit breaker can be used for error monitoring.

** Chapter Timestamps **
0:00 Welcome to Circuit Breaker design pattern
1:24 Agenda of tutorial
2:39 Introduction of Circuit Breaker design pattern
4:28 How Circuit Breaker works
7:22 Real world examples of Circuit Breaker design pattern
11:44 Usage of Circuit Breaker design pattern
12:19 Advantages of Circuit Breaker design pattern
12:56 Summary of Circuit Breaker design pattern
13:38 Next video on Blue-Green design pattern for microservices

#circuitbreaker #designpattern #microservice

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Explanation easy to understand, Microservices design pattern collection videos are "awsume" .Thank you sir i am from Chennai

vijayarajan-btfk
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You're tutorials very nice please reply my comments

AkGAMING-xysv
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