backoff

func FullJitter ¶

func FullJitter(attempt int, base, max time.Duration, r *rand.Rand) time.Duration

FullJitter returns a random delay in [0, min(max, base*2^(attempt-1))].

Full jitter (rather than a fixed exponential schedule) spreads retries out so that thousands of deliveries failing at once against a recovering endpoint don't all come back at the same instant. See https://aws.amazon.com/blogs/architecture/exponential-backoff-and-jitter/.