Struct MetaGroupConfig 

pub struct MetaGroupConfig {
    pub node_data: PathBuf,
    pub meta_group_id: RaftGroupId,
    pub node_id: NodeId,
    pub registry: FeatureRegistry,
    pub storage: StorageConfig,
    pub idempotency_retention: usize,
}

Static layout and identity of one meta-group member.

Directory layout (mirrors the engine sink’s single-group layout)

node-data/
  groups/
    <meta-group-id>/
      raft/        log segments, vote, state machine checkpoint + snapshots
      raft/state/meta-state.json   the sink's durable MetaState checkpoint

The applied meta state is durable in the sink’s checkpoint file (see MetaApplySink) and travels inside raft snapshots for catch-up.

Fields

node_data: PathBuf

The node’s local data root (node-data).

meta_group_id: RaftGroupId

The dedicated meta group’s durable identifier (minted at cluster bootstrap; never a tablet group).

node_id: NodeId

This node’s durable id.

registry: FeatureRegistry

The binary’s feature registry gating MetaCommand::ActivateFeature at apply (identical on every replica of one deployment).

storage: StorageConfig

Durable log storage configuration.

idempotency_retention: usize

Bound on the apply idempotency set (S2B-004).

Implementations

impl MetaGroupConfig

pub fn new( node_data: PathBuf, meta_group_id: RaftGroupId, node_id: NodeId, ) -> Self

Required identities; registry, storage, and retention default to production values.

pub fn group_dir(&self) -> PathBuf

<node-data>/groups/<meta-group-id> — the group directory handed to ConsensusGroup.

pub fn cluster_name(&self) -> String

The group’s text identifier (meta-<hex>).

pub fn group_config(&self) -> GroupConfig

The default GroupConfig for this member (production timings; callers may tune it before passing it to MetaGroup::create).

Trait Implementations

impl Clone for MetaGroupConfig

fn clone(&self) -> MetaGroupConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetaGroupConfig

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

Formats the value using the given formatter.