Struct WorkerMetrics 

#[non_exhaustive]
pub struct WorkerMetrics {
    pub id: WorkerId,
    pub items: u64,
    pub active_connections: usize,
    pub not_ready: u64,
    pub not_ready_duration: Duration,
    pub restarts: u64,
    pub io: Vec<IoConfigMetrics>,
    pub io_other: IoMetricsSnapshot,
    pub page_cache: PageCacheSnapshot,
    pub runtime: RuntimeMetrics,
}

Metrics of a single worker.

A restarted worker keeps the metrics of the worker it replaces.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

id: WorkerId

Worker id.

items: u64

Number of items, connections for network servers, the worker received.

active_connections: usize

Number of open connections, network servers only.

not_ready: u64

Number of times the worker service stopped being ready, e.g. it reached the maximum number of connections.

not_ready_duration: Duration

Total time the worker service was not ready, including the current period.

restarts: u64

Number of times the worker was restarted after a failure.

io: Vec<IoConfigMetrics>

I/O statistics of connections created on the worker, one entry per listener configuration and per configuration with IoConfig::set_metrics() enabled.

io_other: IoMetricsSnapshot

I/O statistics of the worker’s other connections, e.g. client connections of configurations without their own metrics.

page_cache: PageCacheSnapshot

Statistics of the worker thread’s buffer page cache.

The metrics are single-writer. While a failed worker’s thread is still releasing pages and its replacement already runs, updates can be lost, so after a worker restart the statistics may be slightly off.

runtime: RuntimeMetrics

Statistics of the worker’s runtime.

Trait Implementations

impl Clone for WorkerMetrics

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WorkerMetrics

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

Formats the value using the given formatter.

impl Default for WorkerMetrics

fn default() -> Self

Returns the “default value” for a type.

impl Eq for WorkerMetrics

impl PartialEq for WorkerMetrics

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for WorkerMetrics