Enum MetricsError

pub enum MetricsError {
    MetricNotFound(MetricId),
    TypeMismatch {
        expected: MetricType,
        found: MetricType,
    },
    StorageError(String),
    InvalidOperation(String),
}

An error that can occur within the metrics system.

Variants

MetricNotFound(MetricId)

The requested metric was not found in the registry.

TypeMismatch

An operation was attempted on a metric of the wrong type (e.g., trying to set a gauge value on a counter).

Fields

expected: MetricType

The expected metric type for the operation.

found: MetricType

The actual metric type that was found.

StorageError(String)

An error originating from the backend storage layer.

InvalidOperation(String)

An invalid operation was attempted (e.g., invalid histogram bounds).

Trait Implementations

impl Clone for MetricsError

fn clone(&self) -> MetricsError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetricsError

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

Formats the value using the given formatter.

impl Display for MetricsError

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

Formats the value using the given formatter.

impl Error for MetricsError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.