Struct ObserverCounters 

pub struct ObserverCounters {
    pub dropped: u64,
    pub evicted_keys: u64,
    pub evicted_bytes: u64,
    pub expired: u64,
    pub unwatched: u64,
    pub coalesced: u64,
    pub unstamped: u64,
}

What the bounded observer cost, by kind — never summed (RFC 13 §3 O6). Every field is always present: a scraper expects a series to exist at zero, and “absent” is the one thing an exporter must not let a series do.

Fields

dropped: u64

Samples missed while the ledger’s receiver was behind.

evicted_keys: u64

Keys retired from the statistics table at its bound.

evicted_bytes: u64

Retained samples dropped because the byte budget bit.

expired: u64

Retained samples that aged past the retention window.

unwatched: u64

Keys retired because their watch was released.

coalesced: u64

Samples folded into a newer one between two scrapes — the exporter keeps the newest value per series and counts the rest here.

unstamped: u64

Samples that carried no HLC — counted, never defaulted to arrival.

Trait Implementations

impl Clone for ObserverCounters

fn clone(&self) -> ObserverCounters

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ObserverCounters

impl Debug for ObserverCounters

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

Formats the value using the given formatter.

impl Default for ObserverCounters

fn default() -> ObserverCounters

Returns the “default value” for a type.

impl Eq for ObserverCounters

impl PartialEq for ObserverCounters

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ObserverCounters

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 ObserverCounters