Enum RetryStrategy

pub enum RetryStrategy {
    None,
    Quick,
    Balanced,
    Persistent,
    N(NonZeroUsize),
}

A strategy that translates into a configuration for exponential backoff. The first retry is done after 2 seconds, after which the backoff is roughly doubled each time. The interval does not go beyond 32 seconds. So the intervals increase from 2 to 4, to 8, to 16, to 32 seconds and all attempts are made at most 32 seconds apart.

The exact timings depend on jitter, which is set to 0.2, meaning the intervals can deviate quite a bit from the ones listed in the docs.

The default strategy is Balanced.

Variants

None

Attempt once (no retries)

Quick

Retry 3 times (waits 2s, 4s and lastly 8s; max total time ~14s)

Balanced

Retry 5 times (waits 2s, 4s, 8s, 16s and lastly 32s; max total time ~62s)

Persistent

Retry 9 times (waits 2s, 4s, 8s, 16s, 32s, 32s, 32s, 32s and lastly 32s; max total time ~190s)

N(NonZeroUsize)

Attempt a specific number of times

Implementations

impl RetryStrategy

pub fn attempts(&self) -> usize

pub fn backoff(&self) -> Backoff

Trait Implementations

impl Clone for RetryStrategy

fn clone(&self) -> RetryStrategy

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RetryStrategy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RetryStrategy

fn default() -> RetryStrategy

Returns the “default value” for a type.

impl Display for RetryStrategy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for RetryStrategy