Struct BarrierAck 

pub struct BarrierAck {
    pub epoch: u64,
    pub checkpoint_id: u64,
    pub assignment_digest: Option<[u8; 32]>,
    pub ok: bool,
    pub error: Option<String>,
    pub watermark: CheckpointWatermark,
}

Follower ack. ok = false forces the leader to abort instead of wait.

Fields

epoch: u64

Canonical checkpoint ID retained in the wire field named epoch.

checkpoint_id: u64

The same nonzero coordinator-assigned checkpoint ID being acknowledged.

assignment_digest: Option<[u8; 32]>

SHA-256 binding of the announcement’s assignment certificate.

ok: bool

false = snapshot failed locally; leader should abort.

error: Option<String>

Free-text error; populated when ok = false.

watermark: CheckpointWatermark

Follower event-time state at ack time. Uninitialized inputs block advancement; only explicitly idle inputs are excluded from the active cluster minimum.

Trait Implementations

impl Clone for BarrierAck

fn clone(&self) -> BarrierAck

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BarrierAck

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for BarrierAck

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for BarrierAck

impl PartialEq for BarrierAck

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for BarrierAck

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for BarrierAck