Struct metrics_sqlite::SqliteExporter

pub struct SqliteExporter { /* private fields */ }

Exports metrics by storing them in a SQLite database at a periodic interval

Implementations

impl SqliteExporter

pub fn new<P: AsRef<Path>>(
    flush_interval: Duration,
    keep_duration: Option<Duration>,
    path: P
) -> Result<Self>

Creates a new SqliteExporter that stores metrics in a SQLite database file.

flush_interval specifies how often metrics are flushed to SQLite/disk

keep_duration specifies how long data is kept before deleting, performed new()

pub fn set_periodic_housekeeping(
    &self,
    periodic_duration: Option<Duration>,
    retention: Option<Duration>,
    record_limit: Option<usize>
)

Sets optional periodic house keeping, None to disable (disabled by default)

Notes

Periodic house keeping can affect metric recording, causing some data to be dropped during house keeping. Record limit if set will cause anything over limit + 25% of limit to be removed

pub fn install(self) -> Result<(), SetRecorderError>

Install recorder as metrics crate’s Recorder

Trait Implementations

impl Drop for SqliteExporter

fn drop(&mut self)

Executes the destructor for this type.

impl Recorder for SqliteExporter

fn register_counter(
    &self,
    key: Key,
    unit: Option<Unit>,
    description: Option<&'static str>
)

Registers a counter.

fn register_gauge(
    &self,
    key: Key,
    unit: Option<Unit>,
    description: Option<&'static str>
)

Registers a gauge.

fn register_histogram(
    &self,
    key: Key,
    unit: Option<Unit>,
    description: Option<&'static str>
)

Registers a histogram.

fn increment_counter(&self, key: Key, value: u64)

Increments a counter.

fn update_gauge(&self, key: Key, value: GaugeValue)

Updates a gauge.

fn record_histogram(&self, key: Key, value: f64)

Records a histogram.