Class RetryLayer

Retry layer

Add retry for temporary failed operations.

Notes

This layer will retry failed operations when [Error::is_temporary] returns true. If the operation still failed, this layer will set error to Persistent which means error has been retried.

write and blocking_write don't support retry so far, visit this issue for more details.

Examples

const op = new Operator("file", { root: "/tmp" })

const retry = new RetryLayer();
retry.max_times = 3;
retry.jitter = true;

op.layer(retry.build());

Constructors

constructor

Accessors

factor jitter maxDelay maxTimes minDelay

Methods

build

Constructors

constructor

Accessors

factor

  • set factor(v): void

  • Set factor of current backoff.

    Panics

    This function will panic if the input factor is smaller than 1.0.

    Parameters

    • v: number

    Returns void

jitter

  • set jitter(v): void

  • Set jitter of current backoff.

    If jitter is enabled, ExponentialBackoff will add a random jitter in [0, min_delay) to current delay.

    Parameters

    • v: boolean

    Returns void

maxDelay

  • set maxDelay(v): void

  • Set max_delay of current backoff.

    Delay will not increase if the current delay is larger than max_delay.

    Notes

    • The unit of max_delay is millisecond.

    Parameters

    • v: number

    Returns void

maxTimes

  • set maxTimes(v): void

  • Set max_times of current backoff.

    Backoff will return None if max times are reached.

    Parameters

    • v: number

    Returns void

minDelay

  • set minDelay(v): void

  • Set min_delay of current backoff.

    Notes

    • The unit of min_delay is millisecond.

    Parameters

    • v: number

    Returns void

Methods

build

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