pub struct TransportSignals {
pub kafka_assigned_lag: Option<f64>,
pub redis_pending: Option<f64>,
pub inflight: Option<f64>,
pub shed_rate: Option<f64>,
pub send_backpressure_rate: Option<f64>,
pub refused_rate: Option<f64>,
pub produce_queue_depth: Option<f64>,
pub circuit_open: bool,
pub custom: BTreeMap<String, f64>,
}Available on crate feature
scaling only.Expand description
Per-pod, locally-knowable scaling signals, sampled each scaling tick.
EVERY field is what THIS instance knows from its own state or its
broker/coordinator session – no peer/replica assumptions (scaling ACR
principle 1). None means “not applicable / not yet known” and contributes
0 to the pressure (never NaN).
Fields§
§kafka_assigned_lag: Option<f64>Kafka: summed lag over THIS instance’s ASSIGNED partitions (messages).
redis_pending: Option<f64>Redis: this consumer’s pending / per-consumer group lag (messages).
inflight: Option<f64>HTTP/gRPC: this pod’s in-flight request count.
shed_rate: Option<f64>HTTP/gRPC: this pod’s shed/reject rate (events per second).
send_backpressure_rate: Option<f64>Outbound: send-backpressure rate (events per second).
refused_rate: Option<f64>Outbound: refused/dropped rate (events per second).
produce_queue_depth: Option<f64>Outbound: producer/sink queue depth (messages).
circuit_open: boolOutbound circuit breaker open (sink dead -> the composite gate).
custom: BTreeMap<String, f64>App-pushed DOMAIN signals, by name (e.g. cloud-API pending-fetch backlog,
ClickHouse insert backlog). Empty by default; exposed to CEL under the
custom.<name> map, SEPARATE from the fixed transport metrics map.
Trait Implementations§
Source§impl Clone for TransportSignals
impl Clone for TransportSignals
Source§fn clone(&self) -> TransportSignals
fn clone(&self) -> TransportSignals
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreSource§impl Debug for TransportSignals
impl Debug for TransportSignals
Source§impl Default for TransportSignals
impl Default for TransportSignals
Source§fn default() -> TransportSignals
fn default() -> TransportSignals
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl Freeze for TransportSignals
impl RefUnwindSafe for TransportSignals
impl Send for TransportSignals
impl Sync for TransportSignals
impl Unpin for TransportSignals
impl UnsafeUnpin for TransportSignals
impl UnwindSafe for TransportSignals
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