Struct Metrics 

pub struct Metrics { /* private fields */ }

All server metrics. Cheap to update (uncontended atomic add), lock-free to render.

Implementations

impl Metrics

pub fn new() -> Self

pub fn record_query(&self, elapsed: Duration, outcome: QueryOutcome)

Record a finished query: its result class and execution time.

pub fn record_sync_operation( &self, operation: SyncOperation, elapsed: Duration, outcome: SyncOutcome, )

Record a completed private sync protocol operation.

pub fn record_sync_pull_payload(&self, units: u64, bytes: u64)

pub fn record_sync_repair_action( &self, operation: SyncOperation, repair: SyncRepairLabel, )

pub fn inc_sync_ack_advanced(&self)

pub fn inc_connection_accepted(&self)

pub fn inc_auth_failure(&self)

pub fn inc_tx_gate_timeout(&self)

Record an explicit begin that timed out waiting on the transaction gate. Also counts as a failed query so powdb_queries_total{result= "error"} stays truthful — the client saw the statement fail.

pub fn inc_tls_failure(&self)

pub fn active_guard(self: &Arc<Self>) -> ActiveGuard

RAII gauge: increments connections_active now, decrements on drop — correct across every early return or panic in the connection task.

pub fn in_flight_guard(self: &Arc<Self>) -> InFlightGuard

RAII gauge: increments queries_in_flight now, decrements on drop.

pub fn render(&self) -> String

Render the full exposition in Prometheus text format (v0.0.4).

Trait Implementations

impl Default for Metrics

fn default() -> Self

Returns the “default value” for a type.