Retry¶
A retry is the act of re-attempting an operation that previously failed, typically due to a transient error such as a network timeout, a temporarily unavailable service, or a rate-limit response.
Retry strategies differ in how they space repeated attempts: immediate retry, fixed delay, or exponential backoff, often combined with jitter to avoid thundering herd problems. A maximum attempt count or deadline prevents infinite loops.
Because retries re-send the same request, the server-side operation must be idempotent to avoid unintended side effects such as duplicate charges or duplicate records. Idempotency keys are a common mechanism for making retried requests safe on the server side.
Related : Idempotent, Circuit Breaker, Webhook, Deduplication, Hyper Text Transfer Protocol (HTTP), Reliability, Error Handling, Queue
