Design Microservices Architecture with Patterns and Principles - Retry Pattern

The video tutorial discusses microservices and the challenges of service communication, particularly when dealing with transient errors. It introduces the Retry Pattern, a design pattern that allows systems to automatically retry failed operations, ensuring service reliability. The tutorial provides a use case involving a shopping cart service and a payment service, illustrating how the Retry Pattern can handle temporary failures. It also explains the role of API Gateway in managing retries and emphasizes the importance of backoff time. The video concludes by highlighting potential drawbacks of the Retry Pattern and suggests additional strategies like circuit breaking.

What is a common cause of communication failure in microservices?

• Lack of service documentation

• Incorrect API endpoints

• Permanent server shutdown

• Transient network errors

What is the primary purpose of the Retry Pattern in microservices?

• To permanently fix service errors

• To automatically retry failed operations

• To enhance user interface design

• To reduce server load

In the example provided, which service uses the Retry Pattern to handle temporary failures?

• Shipping service

• User authentication service

• Shopping cart service

• Inventory service

Why is back-off time important when implementing the Retry Pattern?

• It reduces the number of retries

• It increases server response speed

• It decreases network bandwidth usage

• It allows time for services to recover

What additional strategy can be used alongside the Retry Pattern to handle persistent failures?

• Service scaling

• Data caching

• Circuit breaking

• Load balancing