Medium Resilience Patterns

Retry with Backoff

Create a service that fails the first 2 times and succeeds on the 3rd. Use retryWhen with Retry.fixedDelay(2, Duration.ofMillis(100)) to retry with delay. Print the result.

retryWhen with Retry.fixedDelay adds a delay between retries.

Expected

Success on attempt 3

Previous Next

Main.kt

Retry with Backoff

medium⏱ 15 minkotlinreactorchallengeresilience

Create a service that fails the first 2 times and succeeds on the 3rd. Use retryWhen with Retry.fixedDelay(2, Duration.ofMillis(100)) to retry with delay. Print the result.

retryWhen with Retry.fixedDelay adds a delay between retries.

Why this works

retryWhen() with Retry.fixedDelay(maxRetries, delay) implements exponential backoff retries. It re-subscribes to the upstream after waiting the specified duration, up to the maximum number of retries.

Expected output

Success on attempt 3

Retry with Backoff

Create a service that fails the first 2 times and succeeds on the 3rd. Use retryWhen with Retry.fixedDelay(2, Duration.ofMillis(100)) to retry with delay. Print the result.

retryWhen with Retry.fixedDelay adds a delay between retries.

Expected

Success on attempt 3

Retry with Backoff

medium⏱ 15 minkotlinreactorchallengeresilience

Create a service that fails the first 2 times and succeeds on the 3rd. Use retryWhen with Retry.fixedDelay(2, Duration.ofMillis(100)) to retry with delay. Print the result.

retryWhen with Retry.fixedDelay adds a delay between retries.

Why this works

Expected output

Success on attempt 3