Enum Membership 

pub enum Membership {
    Gossip,
    Swim,
}

Membership / failure-detection backend selected by the pool’s membership: directive.

Gossip is the historical default: Dynamo-style peer-state dissemination with a phi-accrual failure detector (crate::cluster::gossip, crate::cluster::failure_detector). Swim selects the opt-in SWIM + Lifeguard backend (crate::cluster::swim), which trades all-to-all heartbeating for a randomised probe with indirect (PING-REQ) probes, incarnation-number refutation, and Lifeguard local health awareness – aimed at faster convergence and fewer false peer-down verdicts as clusters grow and churn. SWIM is opt-in until the large-scale churn data justifies making it the default.

Examples

use dynomite::conf::Membership;
assert_eq!(Membership::parse("gossip").unwrap(), Membership::Gossip);
assert_eq!(Membership::parse("swim").unwrap(), Membership::Swim);
assert_eq!(Membership::default(), Membership::Gossip);

Variants

Gossip

Dynamo-style gossip plus phi-accrual. The historical default.

Swim

SWIM + Lifeguard probe-based membership. Opt-in.

Implementations

impl Membership

pub fn parse(s: &str) -> Result<Self, ConfError>

Parse a membership: value (case-insensitive).

Errors

Returns ConfError::BadServer when the value is not a recognised backend.

Examples

use dynomite::conf::Membership;
assert_eq!(Membership::parse("SWIM").unwrap(), Membership::Swim);
assert!(Membership::parse("raft").is_err());

pub const fn as_str(self) -> &'static str

Render back to the canonical YAML name.

Examples

use dynomite::conf::Membership;
assert_eq!(Membership::Gossip.as_str(), "gossip");
assert_eq!(Membership::Swim.as_str(), "swim");

Trait Implementations

impl Clone for Membership

fn clone(&self) -> Membership

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Membership

impl Debug for Membership

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

Formats the value using the given formatter.

impl Default for Membership

fn default() -> Membership

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Membership

fn deserialize<D: Deserializer<'de>>(de: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for Membership

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

Formats the value using the given formatter.

impl Eq for Membership

impl Hash for Membership

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Membership

fn eq(&self, other: &Membership) -> 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 Serialize for Membership

fn serialize<S: Serializer>(&self, ser: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Membership