What resilience features does Envoy provide for network failures?

Envoy provides several resilience features that are critical for maintaining service availability during network failures. The option highlighting retries, timeouts, and circuit breaking encapsulates these features effectively.

Retries are essential for managing transient failures, where a request might fail due to temporary issues, enabling Envoy to automatically reattempt the request a specified number of times before failing entirely. This prevents users from experiencing disruptions for minor network hiccups.

Timeouts are crucial for ensuring that requests do not hang indefinitely. By setting a timeout, Envoy can respond quickly when a service takes too long to process a request, thereby maintaining system responsiveness and allowing for smoother user experiences.

Circuit breaking is designed to prevent an application from repeatedly attempting to connect to an unresponsive service, which can exacerbate problems and lead to a cascading failure. When a service fails beyond a certain threshold, circuit breaking allows Envoy to halt requests to the service temporarily. This helps in reducing load on the failing service and gives it time to recover.

These combined features enable Envoy to enhance resilience effectively, ensuring network reliability and service continuity in adverse circumstances.