Enum TokenCoverageError 

pub enum TokenCoverageError {
    EmptyRack {
        dc: String,
        rack: String,
    },
    Overlap {
        dc: String,
        rack: String,
        token: u32,
        peer_a: u32,
        peer_b: u32,
    },
}

Error returned by validate_token_coverage.

Variants

EmptyRack

A (dc, rack) pair contributes zero tokens to the ring. Either the rack has no peers, or every peer in the rack has an empty token list.

Fields

dc: String

Datacenter name.

rack: String

Rack name.

Overlap

Two peers in the same rack claim the same token value. The dispatcher’s binary search will pick whichever peer happened to sort first, which is non-deterministic across reloads if peer indices change.

Fields

dc: String

Datacenter name.

rack: String

Rack name.

token: u32

The token value claimed by both peers.

peer_a: u32

Index of the first claimant peer.

peer_b: u32

Index of the second claimant peer.

Trait Implementations

impl Debug for TokenCoverageError

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

Formats the value using the given formatter.

impl Display for TokenCoverageError

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

Formats the value using the given formatter.

impl Error for TokenCoverageError

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 TokenCoverageError

fn eq(&self, other: &TokenCoverageError) -> 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 Eq for TokenCoverageError

impl StructuralPartialEq for TokenCoverageError