Retry¶

class laminar.configurations.layers.Retry(attempts: int = 1, delay: float = 0.1, backoff: float = 2.0, jitter: float = 0.1)¶

Bases: object

Configure a Layer to retry on failure using exponential backoff.

Notes

Computes the retry backoff with:

>>> sleep = <delay> * (<backoff> ** (attempt - 1))
>>> sleep = sleep + random(0, sleep * <jitter>)

Usage:

@Flow.register(retry=Retry(...))

Methods

sleep

Exponentially backoff before retrying a layer.

Attributes

attempts	Number of retires to attempt before failing
backoff	Backoff factor to multiply delay with
delay	Base number of seconds to wait before retrying
jitter	Factor to randomize delay.

__init__(attempts: int = 1, delay: float = 0.1, backoff: float = 2.0, jitter: float = 0.1)¶

attempts : int = 1¶

Number of retires to attempt before failing

backoff : float = 2.0¶

Backoff factor to multiply delay with

delay : float = 0.1¶

Base number of seconds to wait before retrying

jitter : float = 0.1¶

Factor to randomize delay.

async sleep(*, layer: Layer, attempt: int) → None¶

Exponentially backoff before retrying a layer.

Parameters¶

layer: Layer¶

Layer being retried.

attempt: int¶

Attempt the layer is on.