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FailoverOutcome

Struct FailoverOutcome 

Source
pub struct FailoverOutcome {
    pub new_term: u64,
    pub frontier_lsn: u64,
    pub reached_lsn: u64,
    pub skipped_lsn: u64,
    pub forced: bool,
    pub waited: Duration,
    pub roles: RoleAssignment,
}
Expand description

The result of a completed handover.

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§new_term: u64

The term the new primary now serves.

§frontier_lsn: u64

The primary frontier frozen at the moment writes were paused — the catch-up target.

§reached_lsn: u64

The target’s acknowledged frontier at the moment the term was handed over. Equals frontier_lsn for a clean handover; may be below it for a forced one.

§skipped_lsn: u64

frontier_lsn - reached_lsn — acknowledged-but-not-yet-replicated LSNs skipped by a forced handover. Always 0 for a clean one.

§forced: bool

Whether the handover had to be forced past an un-caught-up target.

§waited: Duration

How long the catch-up wait ran before the term was handed over.

§roles: RoleAssignment

Post-handover roles of the two nodes.

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impl FailoverOutcome

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pub fn is_zero_rpo(&self) -> bool

True when the target reached the full frontier — a true zero-RPO handover with nothing skipped.

Trait Implementations§

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impl Clone for FailoverOutcome

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fn clone(&self) -> FailoverOutcome

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 Debug for FailoverOutcome

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

Formats the value using the given formatter. Read more
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impl PartialEq for FailoverOutcome

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fn eq(&self, other: &FailoverOutcome) -> 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 Eq for FailoverOutcome

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impl StructuralPartialEq for FailoverOutcome

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