Enum RuntimeProfile 

pub enum RuntimeProfile {
    Data,
    Witness,
}

Which planes a node boots.

Every node runs the control-plane supervisor (the vote path). The profile decides whether the data plane — storage engine, WAL, replication streaming — is constructed alongside it.

Variants

Data

A data-bearing node: supervisor and data plane. Holds data, streams WAL, and can be promoted to primary.

Witness

A witness: the supervisor / vote path only. Holds no data, boots no data plane, and can never be promoted (ADR 0030).

Implementations

impl RuntimeProfile

pub fn boots_data_plane(self) -> bool

Does this profile boot the data plane (storage engine + WAL + replication streaming)? Only RuntimeProfile::Data does — a witness is supervisor-only.

pub fn boots_supervisor(self) -> bool

The supervisor module runs on every profile — that is the whole point of the decoupled control plane (ADR 0030). A witness is the degenerate node that runs nothing else.

pub fn member_kind(self) -> MemberKind

The membership kind this profile presents to the election quorum.

Trait Implementations

impl Clone for RuntimeProfile

fn clone(&self) -> RuntimeProfile

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RuntimeProfile

impl Debug for RuntimeProfile

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

Formats the value using the given formatter.

impl Eq for RuntimeProfile

impl PartialEq for RuntimeProfile

fn eq(&self, other: &RuntimeProfile) -> 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 RuntimeProfile