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    prometheus-plugin-eventloop-stats
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    2.0.0 • Public • Published

    prometheus-plugin-eventloop-stats

    Node.js prometheus client plugin for collecting eventloop statistics.

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    Installation

    npm i -S prometheus-plugin-eventloop-stats
    

    Requirements

    • >=prom-client-4.0.0 npm module (installed as peer dependency). If your project depends on previous version of client this plugin might not work.
    • >=node-4.0.0 because this module uses ES6 syntax

    Metric list

    • Lag of event loop in seconds
      • type: 'Gauge'
      • name: 'nodejs_eventloop_lag_seconds'
      • labels: []

    Usage

    Simple

    const client = require('prom-client');
    const eventloopPlugin = require('prometheus-plugin-eventloop-stats');
     
    // start metrics collection
    eventloopPlugin.init().start();
     
    // log metrics to console
    console.log(client.register.metrics());
     
    // stop metrics collection
    eventloopPlugin.stop();
     
    // stop and clear metrics register
    eventloopPlugin.reset();

    Override metric defaults

    const client = require('prom-client');
    const eventloopPlugin = require('prometheus-plugin-eventloop-stats');
    const override = {
      'metric_name': { // provide default metric name to override it's params
        type: 'Counter', // could be changed, but it's not recommended
        name: 'my_metric_name', // name could be changed
        description: 'My custom description', // description could be changed
        labelValues: { // additional labels
          customLabel: 'hello', // custom labels could be added
          customFnLabel: () => { return new Date() } // if it's a function, it will be called to get label value in runtime
        }
      }
    };
    // start metrics collection
    eventloopPlugin.init(override).start(); // pass override object to init function
     
    // log metrics to console
    console.log(client.register.metrics());
     
    // stop metrics collection
    eventloopPlugin.stop();
     
    // stop and clear metrics register
    eventloopPlugin.reset();

    Install

    npm i prometheus-plugin-eventloop-stats

    DownloadsWeekly Downloads

    24

    Version

    2.0.0

    License

    UNLICENSE

    Last publish

    Collaborators

    • m03geek