ClusterMetadata

d_engine_core

Struct ClusterMetadata 

Source 
pub struct ClusterMetadata {
    pub single_voter: bool,
    pub total_voters: usize,
    pub replication_targets: Vec<NodeMeta>,
}
Expand description

Cached cluster topology metadata for hot path optimization.

This metadata is immutable during leadership and only updated on membership changes. Caching avoids repeated async calls to membership queries in hot paths like append_entries.

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§single_voter: bool

Single-voter cluster (quorum = 1, used for election and commit optimization)

§total_voters: usize

Total number of voters including self (updated on membership changes)

§replication_targets: Vec<NodeMeta>

Cached replication targets (voters + learners, excluding self)

Trait Implementations§

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impl Clone for ClusterMetadata

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fn clone(&self) -> ClusterMetadata

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for ClusterMetadata

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

Formats the value using the given formatter. Read more

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