Trait cadence::Distributed

source · 
pub trait Distributed<T>where
    T: ToDistributionValue,{
    // Required method
    fn distribution_with_tags<'a>(
        &'a self,
        key: &'a str,
        value: T
    ) -> MetricBuilder<'_, '_, Distribution>;

    // Provided method
    fn distribution(&self, key: &str, value: T) -> MetricResult<Distribution> { ... }
}
Expand description

Trait for recording distribution values.

Similar to histograms, but applies globally. A distribution can be used to instrument logical objects, like services, independently from the underlying hosts.

The following types are valid for distributions:

  • u64
  • f64

See the Datadog docs for more information.

Note that tags and distributions are a Datadog extension to Statsd and may not be supported by your server.

Required Methods§

source

fn distribution_with_tags<'a>( &'a self, key: &'a str, value: T ) -> MetricBuilder<'_, '_, Distribution>

Record a single distribution value with the given key and return a MetricBuilder that can be used to add tags to the metric.

Provided Methods§

source

fn distribution(&self, key: &str, value: T) -> MetricResult<Distribution>

Record a single distribution value with the given key

Examples found in repository?
examples/nop-sink.rs (line 32)
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fn main() {
    let sink = NopMetricSink;
    let metrics = StatsdClient::from_sink("example.prefix", sink);

    metrics.count("example.counter", 1).unwrap();
    metrics.gauge("example.gauge", 5).unwrap();
    metrics.gauge("example.gauge", 5.0).unwrap();
    metrics.time("example.timer", 32).unwrap();
    metrics.time("example.timer", Duration::from_millis(32)).unwrap();
    metrics.histogram("example.histogram", 22).unwrap();
    metrics
        .histogram("example.histogram", Duration::from_nanos(22))
        .unwrap();
    metrics.histogram("example.histogram", 22.0).unwrap();
    metrics.distribution("example.distribution", 33).unwrap();
    metrics.distribution("example.distribution", 33.0).unwrap();
    metrics.meter("example.meter", 8).unwrap();
    metrics.set("example.set", 44).unwrap();
}
More examples
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examples/simple-sink.rs (line 34)
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fn main() {
    let sock = UdpSocket::bind("0.0.0.0:0").unwrap();
    let sink = UdpMetricSink::from(("localhost", DEFAULT_PORT), sock).unwrap();
    let metrics = StatsdClient::from_sink("example.prefix", sink);

    metrics.count("example.counter", 1).unwrap();
    metrics.gauge("example.gauge", 5).unwrap();
    metrics.gauge("example.gauge", 5.0).unwrap();
    metrics.time("example.timer", 32).unwrap();
    metrics.time("example.timer", Duration::from_millis(32)).unwrap();
    metrics.histogram("example.histogram", 22).unwrap();
    metrics
        .histogram("example.histogram", Duration::from_nanos(22))
        .unwrap();
    metrics.histogram("example.histogram", 22.0).unwrap();
    metrics.distribution("example.distribution", 33).unwrap();
    metrics.distribution("example.distribution", 33.0).unwrap();
    metrics.meter("example.meter", 8).unwrap();
    metrics.set("example.set", 44).unwrap();
}
examples/production-sink.rs (line 36)
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fn main() {
    let sock = UdpSocket::bind("0.0.0.0:0").unwrap();
    let buffered = BufferedUdpMetricSink::from(("localhost", DEFAULT_PORT), sock).unwrap();
    let queued = QueuingMetricSink::from(buffered);
    let metrics = StatsdClient::from_sink("example.prefix", queued);

    metrics.count("example.counter", 1).unwrap();
    metrics.gauge("example.gauge", 5).unwrap();
    metrics.gauge("example.gauge", 5.0).unwrap();
    metrics.time("example.timer", 32).unwrap();
    metrics.time("example.timer", Duration::from_millis(32)).unwrap();
    metrics.histogram("example.histogram", 22).unwrap();
    metrics
        .histogram("example.histogram", Duration::from_nanos(22))
        .unwrap();
    metrics.histogram("example.histogram", 22.0).unwrap();
    metrics.distribution("example.distribution", 33).unwrap();
    metrics.distribution("example.distribution", 33.0).unwrap();
    metrics.meter("example.meter", 8).unwrap();
    metrics.set("example.set", 44).unwrap();
}
examples/unix-socket.rs (line 45)
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fn main() {
    let harness = UnixServerHarness::new("unix-socket-example");
    harness.run(
        |s: String| println!("Got {} bytes from socket: {}", s.len(), s),
        |path| {
            let socket = UnixDatagram::unbound().unwrap();
            let sink = UnixMetricSink::from(path, socket);
            let metrics = StatsdClient::from_sink("example.prefix", sink);

            metrics.count("example.counter", 1).unwrap();
            metrics.gauge("example.gauge", 5).unwrap();
            metrics.gauge("example.gauge", 5.0).unwrap();
            metrics.time("example.timer", 32).unwrap();
            metrics.time("example.timer", Duration::from_millis(32)).unwrap();
            metrics.histogram("example.histogram", 22).unwrap();
            metrics
                .histogram("example.histogram", Duration::from_nanos(22))
                .unwrap();
            metrics.histogram("example.histogram", 22.0).unwrap();
            metrics.distribution("example.distribution", 33).unwrap();
            metrics.distribution("example.distribution", 33.0).unwrap();
            metrics.meter("example.meter", 8).unwrap();
            metrics.set("example.set", 44).unwrap();
        },
    );
}
examples/spy-sink.rs (line 37)
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fn main() {
    // Ensure that the sink is dropped, forcing a flush of all buffered metrics.
    let rx = {
        // Use a buffer size larger than any metrics here so we can demonstrate that
        // each metric ends up with a newline (\n) after it.
        let (rx, sink) = BufferedSpyMetricSink::with_capacity(None, Some(64));
        let metrics = StatsdClient::from_sink("example.prefix", sink);

        metrics.count("example.counter", 1).unwrap();
        metrics.gauge("example.gauge", 5).unwrap();
        metrics.gauge("example.gauge", 5.0).unwrap();
        metrics.time("example.timer", 32).unwrap();
        metrics.time("example.timer", Duration::from_millis(32)).unwrap();
        metrics.histogram("example.histogram", 22).unwrap();
        metrics
            .histogram("example.histogram", Duration::from_nanos(22))
            .unwrap();
        metrics.histogram("example.histogram", 22.0).unwrap();
        metrics.distribution("example.distribution", 33).unwrap();
        metrics.distribution("example.distribution", 33.0).unwrap();
        metrics.meter("example.meter", 8).unwrap();
        metrics.set("example.set", 44).unwrap();

        rx
    };

    let mut buffer = Vec::new();
    while let Ok(v) = rx.try_recv() {
        buffer.extend(v);
    }

    println!("Contents of wrapped buffer:\n{}", String::from_utf8(buffer).unwrap());
}

Implementors§