Struct GossipDerivedSignals

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pub struct GossipDerivedSignals<'a, S>where
    S: ClusterSignals + ?Sized,
{ /* private fields */ }

Expand description

ClusterSignals view that gets member health from gossip observations and delegates watermarks/catch-up evidence to the existing control-plane source.

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impl<'a, S> GossipDerivedSignals<'a, S>
where S: ClusterSignals + ?Sized,

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pub fn new( gossip: &'a GossipMemberSignals, delegate: &'a S, now: Duration, policy: HealthPolicy, ) -> GossipDerivedSignals<'a, S>

Trait Implementations§

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impl<S> ClusterSignals for GossipDerivedSignals<'_, S>
where S: ClusterSignals + ?Sized,

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fn member_signals(&self, member: &NodeIdentity) -> MemberSignals

Current raw health signals for member.

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fn commit_watermark( &self, collection: &CollectionId, range_id: RangeId, ) -> CommitWatermark

The range commit watermark a promotion candidate must cover for (collection, range_id) — the highest (term, lsn) known durable under the range’s commit policy.

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fn catch_up( &self, collection: &CollectionId, range_id: RangeId, candidate: &NodeIdentity, ) -> Option<CatchUpEvidence>

The catch-up evidence the supervisor has for candidate on the range, or None if the candidate’s progress is unknown (in which case it cannot be promoted — fail closed).

Auto Trait Implementations§

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impl<'a, S> Forget for GossipDerivedSignals<'a, S>
where S: ?Sized,

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impl<'a, S> Freeze for GossipDerivedSignals<'a, S>
where &'a S: Freeze, S: ?Sized,

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impl<'a, S> RefUnwindSafe for GossipDerivedSignals<'a, S>
where &'a S: RefUnwindSafe, S: ?Sized,

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impl<'a, S> Send for GossipDerivedSignals<'a, S>
where &'a S: Send, S: ?Sized,

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impl<'a, S> Sync for GossipDerivedSignals<'a, S>
where &'a S: Sync, S: ?Sized,

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impl<'a, S> Unpin for GossipDerivedSignals<'a, S>
where &'a S: Unpin, S: ?Sized,

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impl<'a, S> UnsafeUnpin for GossipDerivedSignals<'a, S>
where &'a S: UnsafeUnpin, S: ?Sized,

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impl<'a, S> UnwindSafe for GossipDerivedSignals<'a, S>
where &'a S: UnwindSafe, S: ?Sized,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

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fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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impl<T> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request

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impl<L> LayerExt<L> for L

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fn named_layer<S>(&self, service: S) -> Layered<<L as Layer<S>>::Service, S>
where L: Layer<S>,

Applies the layer to a service and wraps it in Layered.

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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.

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type Init = T

The type for initializers.

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn deref<'a>(ptr: usize) -> &'a T

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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more

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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more

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impl<T> Same for T

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type Output = T

Should always be Self

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impl<T, U> TryFrom for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.

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fn try_from(value: U) -> Result<T, !>

Performs the conversion.

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impl<T, U> TryInto for T
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type Error = >::Error

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fn try_into(self) -> Result<U, >::Error>

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

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GossipDerivedSignals

Struct GossipDerivedSignals Copy item path

Implementations§

impl<'a, S> GossipDerivedSignals<'a, S>where S: ClusterSignals + ?Sized,

pub fn new( gossip: &'a GossipMemberSignals, delegate: &'a S, now: Duration, policy: HealthPolicy, ) -> GossipDerivedSignals<'a, S>

Trait Implementations§

impl<S> ClusterSignals for GossipDerivedSignals<'_, S>where S: ClusterSignals + ?Sized,

fn member_signals(&self, member: &NodeIdentity) -> MemberSignals

fn commit_watermark( &self, collection: &CollectionId, range_id: RangeId, ) -> CommitWatermark

fn catch_up( &self, collection: &CollectionId, range_id: RangeId, candidate: &NodeIdentity, ) -> Option<CatchUpEvidence>

Auto Trait Implementations§

impl<'a, S> Forget for GossipDerivedSignals<'a, S>where S: ?Sized,

impl<'a, S> Freeze for GossipDerivedSignals<'a, S>where &'a S: Freeze, S: ?Sized,

impl<'a, S> RefUnwindSafe for GossipDerivedSignals<'a, S>where &'a S: RefUnwindSafe, S: ?Sized,

impl<'a, S> Send for GossipDerivedSignals<'a, S>where &'a S: Send, S: ?Sized,

impl<'a, S> Sync for GossipDerivedSignals<'a, S>where &'a S: Sync, S: ?Sized,

impl<'a, S> Unpin for GossipDerivedSignals<'a, S>where &'a S: Unpin, S: ?Sized,

impl<'a, S> UnsafeUnpin for GossipDerivedSignals<'a, S>where &'a S: UnsafeUnpin, S: ?Sized,

impl<'a, S> UnwindSafe for GossipDerivedSignals<'a, S>where &'a S: UnwindSafe, S: ?Sized,

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<'a, T, E> AsTaggedExplicit<'a, E> for Twhere T: 'a,

fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

impl<'a, T, E> AsTaggedImplicit<'a, E> for Twhere T: 'a,

fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

fn in_current_span(self) -> Instrumented<Self> ⓘ

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘwhere F: FnOnce(&Self) -> bool,

impl<T> IntoRequest<T> for T

fn into_request(self) -> Request<T>

impl<L> LayerExt<L> for L

fn named_layer<S>(&self, service: S) -> Layered<<L as Layer<S>>::Service, S>where L: Layer<S>,

impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> PolicyExt for Twhere T: ?Sized,

fn and<P, B, E>(self, other: P) -> And<T, P>where T: Sized + Policy<B, E>, P: Policy<B, E>,

fn or<P, B, E>(self, other: P) -> Or<T, P>where T: Sized + Policy<B, E>, P: Policy<B, E>,

impl<T> Same for T

type Output = T

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = !

fn try_from(value: U) -> Result<T, !>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘwhere S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

impl<G1, G2> Within<G2> for G1where G2: Contains<G1>,

fn is_within(&self, b: &G2) -> bool

Struct GossipDerivedSignals

impl<'a, S> GossipDerivedSignals<'a, S>
where S: ClusterSignals + ?Sized,

impl<S> ClusterSignals for GossipDerivedSignals<'_, S>
where S: ClusterSignals + ?Sized,

impl<'a, S> Forget for GossipDerivedSignals<'a, S>
where S: ?Sized,

impl<'a, S> Freeze for GossipDerivedSignals<'a, S>
where &'a S: Freeze, S: ?Sized,

impl<'a, S> RefUnwindSafe for GossipDerivedSignals<'a, S>
where &'a S: RefUnwindSafe, S: ?Sized,

impl<'a, S> Send for GossipDerivedSignals<'a, S>
where &'a S: Send, S: ?Sized,

impl<'a, S> Sync for GossipDerivedSignals<'a, S>
where &'a S: Sync, S: ?Sized,

impl<'a, S> Unpin for GossipDerivedSignals<'a, S>
where &'a S: Unpin, S: ?Sized,

impl<'a, S> UnsafeUnpin for GossipDerivedSignals<'a, S>
where &'a S: UnsafeUnpin, S: ?Sized,

impl<'a, S> UnwindSafe for GossipDerivedSignals<'a, S>
where &'a S: UnwindSafe, S: ?Sized,

impl<T> Any for T
where T: 'static + ?Sized,

impl<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T, U> Into<U> for T
where U: From<T>,

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

fn named_layer<S>(&self, service: S) -> Layered<<L as Layer<S>>::Service, S>
where L: Layer<S>,

impl<T> PolicyExt for T
where T: ?Sized,

fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

impl<G1, G2> Within<G2> for G1
where G2: Contains<G1>,