Enum ConsistentReadReject 

pub enum ConsistentReadReject {
    Empty,
    Unroutable {
        collection: CollectionId,
        key: Vec<u8>,
    },
    NoSafeSnapshot,
    WatermarkGap {
        collection: CollectionId,
        range_id: RangeId,
    },
}

Why a consistent cross-range read could not be planned.

Variants

Empty

The read named no targets.

Unroutable

A targeted key resolves to no range of its collection.

Fields

collection: CollectionId

key: Vec<u8>

NoSafeSnapshot

No safe snapshot was supplied. A cross-range read cannot be served consistently without a global watermark, so the request fails clearly rather than silently degrading to a best-effort fanout.

WatermarkGap

The supplied snapshot does not cover a targeted range, so the read cannot be pinned to a single safe point across all of its ranges.

Fields

collection: CollectionId

range_id: RangeId

Trait Implementations

impl Clone for ConsistentReadReject

fn clone(&self) -> ConsistentReadReject

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConsistentReadReject

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

Formats the value using the given formatter.

impl Display for ConsistentReadReject

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

Formats the value using the given formatter.

impl Eq for ConsistentReadReject

impl Error for ConsistentReadReject

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for ConsistentReadReject

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ConsistentReadReject