Struct BackendStats 

pub struct BackendStats {

    pub backend_id: BackendId,
    pub active_connections: ActiveConnections,
    pub total_commands: CommandCount,
    pub bytes_sent: BytesSent,
    pub bytes_received: BytesReceived,
    pub errors: ErrorCount,
    pub errors_4xx: ErrorCount,
    pub errors_5xx: ErrorCount,
    pub article_bytes_total: ArticleBytesTotal,
    pub article_count: ArticleCount,
    pub ttfb_micros_total: TtfbMicros,
    pub ttfb_count: TimingMeasurementCount,
    pub send_micros_total: SendMicros,
    pub recv_micros_total: RecvMicros,
    pub connection_failures: FailureCount,
    pub health_status: BackendHealthStatus,
}

Statistics for a single backend (cloneable snapshot)

Fields

backend_id: BackendId

active_connections: ActiveConnections

total_commands: CommandCount

bytes_sent: BytesSent

bytes_received: BytesReceived

errors: ErrorCount

errors_4xx: ErrorCount

errors_5xx: ErrorCount

article_bytes_total: ArticleBytesTotal

article_count: ArticleCount

ttfb_micros_total: TtfbMicros

ttfb_count: TimingMeasurementCount

send_micros_total: SendMicros

recv_micros_total: RecvMicros

connection_failures: FailureCount

health_status: BackendHealthStatus

Implementations

impl BackendStats

pub const fn average_article_size(&self) -> Option<u64>

Calculate average article size

pub fn average_ttfb_ms(&self) -> Option<f64>

Calculate average time to first byte in milliseconds

pub fn average_send_ms(&self) -> Option<f64>

Calculate average send time in milliseconds

pub fn average_recv_ms(&self) -> Option<f64>

Calculate average receive time in milliseconds

pub fn average_overhead_ms(&self) -> Option<f64>

Calculate async overhead in milliseconds

pub fn error_rate_percent(&self) -> f64

Calculate error rate as a percentage

pub fn has_high_error_rate(&self) -> bool

Check if backend has high error rate (> 5%)

pub fn is_healthy(&self) -> bool

Check if backend is healthy

pub fn is_degraded(&self) -> bool

Check if backend is degraded

pub fn is_down(&self) -> bool

Check if backend is down

pub const fn total_bytes(&self) -> u64

Get total bytes transferred

pub const fn has_activity(&self) -> bool

Check if backend has any activity

Trait Implementations

impl Clone for BackendStats

fn clone(&self) -> BackendStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BackendStats

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

Formats the value using the given formatter.

impl Default for BackendStats

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for BackendStats

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for BackendStats

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

where __S: Serializer,

Serialize this value into the given Serde serializer.