Enum FailurePolicy 

pub enum FailurePolicy {
    FailFast,
    CollectAll,
    Quorum(usize),
    BestEffort,
}

What map_reduce does when some items fail.

Variants

FailFast

Stop at the first failing item (in input order) and return its error; remaining in-flight work is dropped/cancelled.

CollectAll

Run every item to completion and always return Ok, recording per-item success or failure for the caller to inspect.

Quorum(usize)

Run every item to completion; return Ok when at least n items succeeded, otherwise return an error.

BestEffort

Run every item to completion and always return Ok, silently keeping only the successful outputs.

Trait Implementations

impl Clone for FailurePolicy

fn clone(&self) -> FailurePolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FailurePolicy

impl Debug for FailurePolicy

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

Formats the value using the given formatter.

impl Default for FailurePolicy

fn default() -> FailurePolicy

Returns the “default value” for a type.

impl Eq for FailurePolicy

impl PartialEq for FailurePolicy

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FailurePolicy