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FailoverEligibility

reddb_server::cluster::commit_resolution

Enum FailoverEligibility 

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pub enum FailoverEligibility {
    RequiresWatermarkCoverage,
    LocalAckDataLossWindow,
}
Expand description

Failover implication of a resolved commit policy. Consumed by failover eligibility: a durable policy gates promotion on watermark coverage, while a local-ack policy admits an explicit data-loss window on the promoted node.

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RequiresWatermarkCoverage

The effective policy is durable: a candidate may be promoted only if its applied log covers the range commit watermark.

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LocalAckDataLossWindow

The effective policy is local-only: a promoted candidate may not have the failed owner’s most recent local-only writes — an accepted, documented loss window for ephemeral/cache-like data.

Trait Implementations§

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impl Clone for FailoverEligibility

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fn clone(&self) -> FailoverEligibility

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for FailoverEligibility

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impl Debug for FailoverEligibility

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

Formats the value using the given formatter. Read more
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impl Eq for FailoverEligibility

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impl PartialEq for FailoverEligibility

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fn eq(&self, other: &FailoverEligibility) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for FailoverEligibility

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