FM / metrics

/usr/local/lib/node_modules/pm2/node_modules/@pm2/io/build/main/metrics/

/usr/local/lib/node_modules/pm2/node_modules/@pm2/io/build/main/metrics

Name	Size	Mode	Actions
eventLoopMetrics.d.ts	528	0644	edit dl rm
eventLoopMetrics.js	10669	0644	edit dl rm
httpMetrics.d.ts	500	0644	edit dl rm
httpMetrics.js	13958	0644	edit dl rm
network.d.ts	431	0644	edit dl rm
network.js	9068	0644	edit dl rm
runtime.d.ts	472	0644	edit dl rm
runtime.js	12827	0644	edit dl rm
v8.d.ts	647	0644	edit dl rm
v8.js	7254	0644	edit dl rm

Edit: /usr/local/lib/node_modules/pm2/node_modules/@pm2/io/build/main/metrics/httpMetrics.js (13958B)

'use strict';
Object.defineProperty(exports, "__esModule", { value: true });
exports.HttpMetricsConfig = void 0;
const shimmer = require("shimmer");
const debug_1 = require("debug");
const configuration_1 = require("../configuration");
const serviceManager_1 = require("../serviceManager");
const histogram_1 = require("../utils/metrics/histogram");
const requireMiddle = require("require-in-the-middle");
const metrics_1 = require("../services/metrics");
class HttpMetricsConfig {
}
exports.HttpMetricsConfig = HttpMetricsConfig;
class HttpMetrics {
    constructor() {
        this.defaultConf = {
            http: true
        };
        this.metrics = new Map();
        this.logger = (0, debug_1.default)('axm:features:metrics:http');
        this.modules = {};
    }
    init(config) {
        if (config === false)
            return;
        if (config === undefined) {
            config = this.defaultConf;
        }
        if (typeof config !== 'object') {
            config = this.defaultConf;
        }
        this.logger('init');
        configuration_1.default.configureModule({
            latency: true
        });
        this.metricService = serviceManager_1.ServiceManager.get('metrics');
        if (this.metricService === undefined)
            return this.logger(`Failed to load metric service`);
        this.logger('hooking to require');
        this.hookRequire();
    }
    registerHttpMetric() {
        if (this.metricService === undefined)
            return this.logger(`Failed to load metric service`);
        const histogram = new histogram_1.default();
        const p50 = {
            name: `HTTP Mean Latency`,
            id: 'internal/http/builtin/latency/p50',
            type: metrics_1.MetricType.histogram,
            historic: true,
            implementation: histogram,
            unit: 'ms',
            handler: () => {
                const percentiles = histogram.percentiles([0.5]);
                return percentiles[0.5];
            }
        };
        const p95 = {
            name: `HTTP P95 Latency`,
            id: 'internal/http/builtin/latency/p95',
            type: metrics_1.MetricType.histogram,
            historic: true,
            implementation: histogram,
            handler: () => {
                const percentiles = histogram.percentiles([0.95]);
                return percentiles[0.95];
            },
            unit: 'ms'
        };
        const meter = {
            name: 'HTTP',
            historic: true,
            id: 'internal/http/builtin/reqs',
            unit: 'req/min'
        };
        this.metricService.registerMetric(p50);
        this.metricService.registerMetric(p95);
        this.metrics.set('http.latency', histogram);
        this.metrics.set('http.meter', this.metricService.meter(meter));
    }
    registerHttpsMetric() {
        if (this.metricService === undefined)
            return this.logger(`Failed to load metric service`);
        const histogram = new histogram_1.default();
        const p50 = {
            name: `HTTPS Mean Latency`,
            id: 'internal/https/builtin/latency/p50',
            type: metrics_1.MetricType.histogram,
            historic: true,
            implementation: histogram,
            unit: 'ms',
            handler: () => {
                const percentiles = histogram.percentiles([0.5]);
                return percentiles[0.5];
            }
        };
        const p95 = {
            name: `HTTPS P95 Latency`,
            id: 'internal/https/builtin/latency/p95',
            type: metrics_1.MetricType.histogram,
            historic: true,
            implementation: histogram,
            handler: () => {
                const percentiles = histogram.percentiles([0.95]);
                return percentiles[0.95];
            },
            unit: 'ms'
        };
        const meter = {
            name: 'HTTPS',
            historic: true,
            id: 'internal/https/builtin/reqs',
            unit: 'req/min'
        };
        this.metricService.registerMetric(p50);
        this.metricService.registerMetric(p95);
        this.metrics.set('https.latency', histogram);
        this.metrics.set('https.meter', this.metricService.meter(meter));
    }
    destroy() {
        if (this.modules.http !== undefined) {
            this.logger('unwraping http module');
            shimmer.unwrap(this.modules.http, 'emit');
            this.modules.http = undefined;
        }
        if (this.modules.https !== undefined) {
            this.logger('unwraping https module');
            shimmer.unwrap(this.modules.https, 'emit');
            this.modules.https = undefined;
        }
        if (this.hooks) {
            this.hooks.unhook();
        }
        this.logger('destroy');
    }
    hookHttp(nodule, name) {
        if (nodule.Server === undefined || nodule.Server.prototype === undefined)
            return;
        if (this.modules[name] !== undefined)
            return this.logger(`Module ${name} already hooked`);
        this.logger(`Hooking to ${name} module`);
        this.modules[name] = nodule.Server.prototype;
        if (name === 'http') {
            this.registerHttpMetric();
        }
        else if (name === 'https') {
            this.registerHttpsMetric();
        }
        const self = this;
        shimmer.wrap(nodule.Server.prototype, 'emit', (original) => {
            return function (event, req, res) {
                if (event !== 'request')
                    return original.apply(this, arguments);
                const meter = self.metrics.get(`${name}.meter`);
                if (meter !== undefined) {
                    meter.mark();
                }
                const latency = self.metrics.get(`${name}.latency`);
                if (latency === undefined)
                    return original.apply(this, arguments);
                if (res === undefined || res === null)
                    return original.apply(this, arguments);
                const startTime = Date.now();
                res.once('finish', _ => {
                    latency.update(Date.now() - startTime);
                });
                return original.apply(this, arguments);
            };
        });
    }
    hookRequire() {
        this.hooks = requireMiddle(['http', 'https'], (exports, name) => {
            this.hookHttp(exports, name);
            return exports;
        });
    }
}
exports.default = HttpMetrics;
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