metrics-influx

0.0.5 • Public • Published

node-metrics-influx

Modern Influxdb backend for metrics

Installation

$ npm install metrics-influx

Usage

"use strict";

var InfluxMetrics = require('metrics-influx');

var reporter = new InfluxMetrics.Reporter({ tags: { 'server': 'one' } });
var c = new InfluxMetrics.Counter();
reporter.addMetric('test.counter', c);
c.inc();

var g = new InfluxMetrics.Gauge();
reporter.addMetric('test.gauge', g);
g.set(10);

var h = new InfluxMetrics.Histogram();
reporter.addMetric('test.histogram', h);
h.update(50);

var m = new InfluxMetrics.Meter();
reporter.addMetric('test.meter', m);
m.mark(1);

var t = new InfluxMetrics.Timer();
reporter.addMetric('test.timer', t);
t.update(50);

reporter.report(true); // Send metrics to InfluxDB

Resetting values

To reset the values of Counters, Histograms and Timers at specific times and intervals, Reporter.resetMetric can be used. It resets the given metric periodically at a specified interval, starting at the specified time within the next 24 hours. The time must be given in UTC. If startHour < 0, the interval will be started immediately, with the metric reset once. If an error occurs during the reset, the interval is stopped.

Syntax: Reporter.resetMetric(metricToReset, intervalHour, intervalMinute, intervalSecond, startHour, startMinute, startSecond)

const c1 = new InfluxMetrics.Counter();
reporter.addMetric('measurement.name', c1);
// Reset the metric c1 every 10h 30m 5s, starting at 12.55pm
// If the current time of day > 12.55pm, will start immediately
reporter.resetMetric(c1, 10, 30, 5, 12, 55, 0);

Configuration

The options object accepts the following fields:

Parameter Type Default Description
host string 127.0.0.1 InfluxDB host
port number 8089(udp) / 8086(http) InfluxDB port
username string null InfluxDB username
password string null InfluxDB password
database string null InfluxDB database
consistency string null one/quorum/all/any
tags object {} Tags to add to influxdb measurements
tagger function none Function invoked with the metric key and expected to return the tags for it in the form {tag1: value1, tag2: value2, ...}
precision string n n/u/ms/s/m/h
bufferSize number 0 Number of points to keep before sending to InfluxDB
scheduleInterval number null This is the time in ms to flush any buffered metrics
skipIdleMetrics boolean false Suppress sending of metrics if there has been no new updates from previous report

Credits

This module is based on the metrics library by Mike Ihbe and the node-metrics-influxdb backend by Brandon Hamilton.

License

MIT License

Copyright (c) 2017 Juhana S.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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Install

npm i metrics-influx

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Version

0.0.5

License

MIT

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  • juhanas