retry-fault-tolerance-design

To implement retry logic with exponential backoff and jitter, you wrap external HTTP calls with configurable minimum and maximum delays plus a jitter factor to space out requests, reducing collision and retry storms during high contention.

A circuit breaker is a fault tolerance mechanism that stops calling unhealthy downstream services by transitioning states, allowing controlled recovery. You need it to prevent cascading failures and service degradation when external dependencies experience outages or rate limits.

Prevent cascading failures with unreliable third-party APIs by combining configurable timeouts to bound resource usage, error classification hooks to retry only transient failures, and a circuit breaker to stop calling unhealthy downstream services during outages.

Yes, you can configure timeouts and error classification separately. Error classification and retry hooks decide when retries are appropriate for HTTP 5xx, network errors, or rate limits, while timeouts bound resource usage for slow or stuck operations independently.

Retry fault tolerance works for both synchronous RPCs and asynchronous tasks. The mechanism applies to any unreliable external calls where transient failures, rate limits, and timeouts occur, providing exponential backoff and circuit breaker state transitions.