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RetryPolicy

Struct RetryPolicy 

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pub struct RetryPolicy { /* private fields */ }
Expand description

How often, and how patiently, a failed request is repeated.

The default is five attempts with a doubling delay from one second, capped at ten — about fifteen seconds of patience, which covers a proxy restart or a scheduler reconnect without making a genuinely broken cluster feel hung.

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impl RetryPolicy

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pub fn new( attempts: u32, initial_backoff: Duration, max_backoff: Duration, ) -> Self

attempts tries in total, waiting initial_backoff after the first failure and doubling up to max_backoff.

attempts is clamped to at least one: zero attempts would mean never sending the request at all.

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pub fn none() -> Self

Send once, report whatever comes back.

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pub fn quiet(self) -> Self

The same policy, retrying without saying so.

A retry normally announces itself on stderr, so a launcher that pauses for fifteen seconds says why rather than looking hung. Inside a job that same stream is the cluster’s diagnostic channel — a bounded buffer the operation UI shows, and the one the job’s own messages go to — so a worker that talks to the cluster while a proxy is flaky would fill it with retry chatter.

With the tracing feature on the announcement is a WARN event rather than a line on stderr, and this mutes that too. Same reason: a subscriber installed inside a job is, more often than not, writing to the very buffer this exists to protect. RetryPolicy::loud puts the messages back whichever form they take.

A Client built inside a job is quiet already; this is for choosing it anywhere else:

use ytsaurus_client::{Client, RetryPolicy};

let client = Client::new("http://localhost:8000")
    .with_retries(RetryPolicy::default().quiet());
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pub fn loud(self) -> Self

The same policy, announcing each retry.

The default outside a job, and what puts the messages back inside one — a job whose stderr nobody else is using may well want them, and so does one whose subscriber ships them somewhere other than stderr.

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impl Clone for RetryPolicy

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fn clone(&self) -> RetryPolicy

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for RetryPolicy

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impl Debug for RetryPolicy

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

Formats the value using the given formatter. Read more
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impl Default for RetryPolicy

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Eq for RetryPolicy

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impl PartialEq for RetryPolicy

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fn eq(&self, other: &RetryPolicy) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for RetryPolicy

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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impl<T> CloneToUninit for T
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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Calls U::from(self).

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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