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/v8.js (7254B)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.V8MetricsConfig = void 0;
const v8 = require("v8");
const debug_1 = require("debug");
const serviceManager_1 = require("../serviceManager");
class V8MetricsConfig {
}
exports.V8MetricsConfig = V8MetricsConfig;
const defaultOptions = {
    new_space: false,
    old_space: false,
    map_space: false,
    code_space: false,
    large_object_space: false,
    heap_total_size: true,
    heap_used_size: true,
    heap_used_percent: true
};
class V8Metric {
    constructor() {
        this.TIME_INTERVAL = 800;
        this.logger = (0, debug_1.default)('axm:features:metrics:v8');
        this.metricStore = new Map();
        this.unitKB = 'MiB';
        this.metricsDefinitions = {
            total_heap_size: {
                name: 'Heap Size',
                id: 'internal/v8/heap/total',
                unit: this.unitKB,
                historic: true
            },
            heap_used_percent: {
                name: 'Heap Usage',
                id: 'internal/v8/heap/usage',
                unit: '%',
                historic: true
            },
            used_heap_size: {
                name: 'Used Heap Size',
                id: 'internal/v8/heap/used',
                unit: this.unitKB,
                historic: true
            }
        };
    }
    init(config) {
        if (config === false)
            return;
        if (config === undefined) {
            config = defaultOptions;
        }
        if (config === true) {
            config = defaultOptions;
        }
        this.metricService = serviceManager_1.ServiceManager.get('metrics');
        if (this.metricService === undefined)
            return this.logger('Failed to load metric service');
        this.logger('init');
        if (!v8.hasOwnProperty('getHeapStatistics')) {
            return this.logger(`V8.getHeapStatistics is not available, aborting`);
        }
        for (let metricName in this.metricsDefinitions) {
            if (config[metricName] === false)
                continue;
            const isEnabled = config[metricName];
            if (isEnabled === false)
                continue;
            let metric = this.metricsDefinitions[metricName];
            this.metricStore.set(metricName, this.metricService.metric(metric));
        }
        this.timer = setInterval(() => {
            const stats = v8.getHeapStatistics();
            for (let metricName in this.metricsDefinitions) {
                if (typeof stats[metricName] !== 'number')
                    continue;
                const gauge = this.metricStore.get(metricName);
                if (gauge === undefined)
                    continue;
                gauge.set(this.formatMiBytes(stats[metricName]));
            }
            const usage = (stats.used_heap_size / stats.total_heap_size * 100).toFixed(2);
            const usageMetric = this.metricStore.get('heap_used_percent');
            if (usageMetric !== undefined) {
                usageMetric.set(parseFloat(usage));
            }
        }, this.TIME_INTERVAL);
        this.timer.unref();
    }
    destroy() {
        if (this.timer !== undefined) {
            clearInterval(this.timer);
        }
        this.logger('destroy');
    }
    formatMiBytes(val) {
        return (val / 1024 / 1024).toFixed(2);
    }
}
exports.default = V8Metric;
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