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Prometheus client binding #145

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Prometheus client binding #145

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3 changes: 2 additions & 1 deletion package.json
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,8 @@
"lru-cache": "4.1.x",
"mkdirp": "0.5.1",
"optimist": "0.6.1",
"requireg": "^0.2.1"
"requireg": "^0.2.1",
"prom-client": "^14.1.0"
},
"optionalDependencies": {
"amqplib": "0.5.1",
Expand Down
77 changes: 48 additions & 29 deletions plugins/filters/app_janus/filter_app_janus_tracer.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,21 @@ FilterAppJanusTracer.prototype.start = async function (callback) {
this.ctx.init()
logger.info('Initialized App Janus Span + Metrics Tracer');
sender.init(this)

this.histogram = new (require('./prometheus').client.Histogram)({
name: 'real_rtt',
help: 'metric_help',
buckets: [10, 200, 400, 700, 1500],
labelNames: ['emitter', 'server', 'client']
}); //new histogram([10, 200, 400, 700, 1500], 'real_rtt');
require('./prometheus').registry.registerMetric(this.histogram);
require('./prometheus').emitter.on('data', data => {
if (!data.streams.length) {
return
}
sender.sendMetrics(data);
});

callback();
};

Expand Down Expand Up @@ -152,7 +167,7 @@ function ContextManager (self, tracerName, lru) {
line.event
line.event.name -> created
line.event.transport
line.event.transport.id
line.event.transport?.id || 'undef'
*/
event = {
eventName: line.event.name,
Expand Down Expand Up @@ -180,7 +195,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
this.sessionMap.set(session.session_id, { ...session })
// logger.info('PJU -- Session event:', sessionSpan, session)
Expand All @@ -197,7 +212,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const destroySpan = this.startSpan(
Expand Down Expand Up @@ -255,7 +270,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const handleSpan = this.startSpan(
Expand Down Expand Up @@ -299,7 +314,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const detachedSpan = this.startSpan(
Expand Down Expand Up @@ -352,7 +367,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const extSpan = this.startSpan(
Expand Down Expand Up @@ -406,7 +421,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const sdpSpan = this.startSpan(
Expand Down Expand Up @@ -435,7 +450,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const sdpSpan = this.startSpan(
Expand Down Expand Up @@ -492,7 +507,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const iceSpan = this.startSpan(
Expand All @@ -519,7 +534,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const conIceSpan = this.startSpan(
Expand All @@ -545,7 +560,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const conIceSpan = this.startSpan(
Expand All @@ -571,7 +586,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const readySpan = this.startSpan(
Expand Down Expand Up @@ -610,7 +625,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const candidateSpan = this.startSpan(
Expand Down Expand Up @@ -646,7 +661,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const candidateSpan = this.startSpan(
Expand Down Expand Up @@ -682,7 +697,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const candidateSpan = this.startSpan(
Expand Down Expand Up @@ -722,7 +737,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const trySpan = this.startSpan(
Expand Down Expand Up @@ -751,7 +766,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const conSpan = this.startSpan(
Expand Down Expand Up @@ -788,7 +803,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
const conSpan = this.startSpan(
Expand Down Expand Up @@ -886,7 +901,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
let mediaSpan = this.startSpan(
Expand Down Expand Up @@ -931,7 +946,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undefined'
}
}
let mediaSpan = this.startSpan(
Expand Down Expand Up @@ -1077,7 +1092,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
let joinSpan = this.startSpan(
Expand Down Expand Up @@ -1123,7 +1138,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
let confSpan = this.startSpan(
Expand Down Expand Up @@ -1156,7 +1171,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
let pubSpan = this.startSpan(
Expand Down Expand Up @@ -1196,7 +1211,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
let subSpan = this.startSpan(
Expand Down Expand Up @@ -1229,7 +1244,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
try {
Expand Down Expand Up @@ -1258,7 +1273,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
let upSpan = this.startSpan(
Expand Down Expand Up @@ -1291,7 +1306,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
let unpubSpan = this.startSpan(
Expand Down Expand Up @@ -1333,7 +1348,7 @@ function ContextManager (self, tracerName, lru) {
sessionSpanId: sessionSpan.id,
sessionSpan: sessionSpan,
status: 'Open',
transportId: line.event.transport.id
transportId: line.event.transport?.id || 'undef'
}
}
try {
Expand Down Expand Up @@ -1528,7 +1543,11 @@ function ContextManager (self, tracerName, lru) {
below with <= upperBound
*/

const rtt = event.metrics["rtt"] || 0
const rtt = parseInt(event.metrics["rtt"] || 0)

if (!isNaN(rtt)) {
self.histogram.labels(event.emitter, event.emitter, 'rtt').observe(rtt)
}

if (rtt <= 10) {
mediaMetrics.streams.push({
Expand Down
83 changes: 83 additions & 0 deletions plugins/filters/app_janus/histogram.js
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,83 @@
const {EventEmitter} = require('events')

module.exports = class extends EventEmitter {
/**
*
* @param classes {number[]}
* @param metric {string}
*/
constructor(classes, metric) {
super();
classes.sort((a,b) => a-b);
this.metric = metric;
this.classes = classes;
this.streams = {};
const self = this;
setInterval(() => {
Object.values(self.streams).forEach(stream => {
const now = `${Date.now() * 1e6}`
stream.buckets.forEach(b => b.values[0][0] = now)
stream.buckets_strict.forEach(b => b.values[0][0] = now)
stream.sum.values[0][0] = now
stream.count.values[0][0] = now
const res = {streams: [
...stream.buckets,
...stream.buckets_strict,
stream.count,
stream.sum
]}
self.emit('data', res);
});
self.streams = {};
}, 15000);
}

/**
*
* @param tags {Object<string, string>}
*/
get(tags) {
const strTags = JSON.stringify(tags);
if (this.streams[strTags]) {
return this.streams[strTags];
}
const _classes = [...this.classes, '+Inf']
this.streams[strTags] = {
buckets: _classes.map(cls => ({
stream: {...tags, __name__: this.metric + '_bucket', le: cls.toString()},
values: [['0', '', 0]]})),
buckets_strict: _classes.map((cls, i) => ({
stream: {
...tags,
__name__: this.metric + '_bucket_strict',
le: cls.toString(),
gt: i === 0 ? '0' : _classes[i-1].toString()
},
values: [['0', '', 0]]})),
count: {stream: {...tags, __name__: this.metric + '_count'},
values: [['0', '', 0]]},
sum: {stream: {...tags, __name__: this.metric + '_sum'},
values: [['0', '', 0]]}
}
return this.streams[strTags];
}

/**
* @param tags {Object<string, string>}
* @param val {number}
*/
put(tags, val) {
const stream = this.get(tags)
stream.sum.values[0][2] += val;
stream.count.values[0][2] ++;
let i = 0;
while (i < this.classes.length && val > this.classes[i]) {
i++;
}
stream.buckets_strict[i].values[0][2]++;
while (i < stream.buckets.length) {
stream.buckets[i].values[0][2]++;
i++
}
}
}
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