251 lines
10 KiB
JavaScript
251 lines
10 KiB
JavaScript
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"use strict";
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var __assign = (this && this.__assign) || Object.assign || function(t) {
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for (var s, i = 1, n = arguments.length; i < n; i++) {
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s = arguments[i];
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for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
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t[p] = s[p];
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}
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return t;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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var Config = require("../Library/Config");
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var Context = require("../Library/Context");
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var Logging = require("../Library/Logging");
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var AutoCollectNativePerformance = (function () {
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function AutoCollectNativePerformance(client) {
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this._disabledMetrics = {};
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// Note: Only 1 instance of this can exist. So when we reconstruct this object,
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// just disable old native instance and reset JS member variables
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if (AutoCollectNativePerformance.INSTANCE) {
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AutoCollectNativePerformance.INSTANCE.dispose();
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}
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AutoCollectNativePerformance.INSTANCE = this;
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this._client = client;
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}
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/**
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* Reports if NativePerformance is able to run in this environment
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*/
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AutoCollectNativePerformance.isNodeVersionCompatible = function () {
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var nodeVer = process.versions.node.split(".");
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return parseInt(nodeVer[0]) >= 6;
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};
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/**
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* Start instance of native metrics agent.
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*
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* @param {boolean} isEnabled
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* @param {number} [collectionInterval=60000]
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* @memberof AutoCollectNativePerformance
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*/
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AutoCollectNativePerformance.prototype.enable = function (isEnabled, disabledMetrics, collectionInterval) {
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var _this = this;
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if (disabledMetrics === void 0) { disabledMetrics = {}; }
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if (collectionInterval === void 0) { collectionInterval = 60000; }
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if (!AutoCollectNativePerformance.isNodeVersionCompatible()) {
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return;
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}
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if (AutoCollectNativePerformance._metricsAvailable == undefined && isEnabled && !this._isInitialized) {
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// Try to require in the native-metrics library. If it's found initialize it, else do nothing and never try again.
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try {
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var NativeMetricsEmitters = require("applicationinsights-native-metrics");
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AutoCollectNativePerformance._emitter = new NativeMetricsEmitters();
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AutoCollectNativePerformance._metricsAvailable = true;
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Logging.info("Native metrics module successfully loaded!");
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}
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catch (err) {
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// Package not available. Never try again
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AutoCollectNativePerformance._metricsAvailable = false;
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return;
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}
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}
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this._isEnabled = isEnabled;
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this._disabledMetrics = disabledMetrics;
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if (this._isEnabled && !this._isInitialized) {
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this._isInitialized = true;
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}
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// Enable the emitter if we were able to construct one
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if (this._isEnabled && AutoCollectNativePerformance._emitter) {
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// enable self
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AutoCollectNativePerformance._emitter.enable(true, collectionInterval);
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this._handle = setInterval(function () { return _this._trackNativeMetrics(); }, collectionInterval);
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this._handle.unref();
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}
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else if (AutoCollectNativePerformance._emitter) {
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// disable self
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AutoCollectNativePerformance._emitter.enable(false);
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if (this._handle) {
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clearInterval(this._handle);
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this._handle = undefined;
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}
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}
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};
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/**
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* Cleanup this instance of AutoCollectNativePerformance
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*
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* @memberof AutoCollectNativePerformance
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*/
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AutoCollectNativePerformance.prototype.dispose = function () {
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this.enable(false);
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};
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/**
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* Parse environment variable and overwrite isEnabled based on respective fields being set
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*
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* @private
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* @static
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* @param {(boolean | IDisabledExtendedMetrics)} collectExtendedMetrics
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* @returns {(boolean | IDisabledExtendedMetrics)}
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* @memberof AutoCollectNativePerformance
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*/
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AutoCollectNativePerformance.parseEnabled = function (collectExtendedMetrics) {
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var disableAll = process.env[Config.ENV_nativeMetricsDisableAll];
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var individualOptOuts = process.env[Config.ENV_nativeMetricsDisablers];
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// case 1: disable all env var set, RETURN with isEnabled=false
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if (disableAll) {
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return { isEnabled: false, disabledMetrics: {} };
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}
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// case 2: individual env vars set, RETURN with isEnabled=true, disabledMetrics={...}
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if (individualOptOuts) {
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var optOutsArr = individualOptOuts.split(",");
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var disabledMetrics = {};
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if (optOutsArr.length > 0) {
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for (var _i = 0, optOutsArr_1 = optOutsArr; _i < optOutsArr_1.length; _i++) {
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var opt = optOutsArr_1[_i];
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disabledMetrics[opt] = true;
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}
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}
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// case 2a: collectExtendedMetrics is an object, overwrite existing ones if they exist
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if (typeof collectExtendedMetrics === "object") {
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return { isEnabled: true, disabledMetrics: __assign({}, collectExtendedMetrics, disabledMetrics) };
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}
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// case 2b: collectExtendedMetrics is a boolean, set disabledMetrics as is
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return { isEnabled: collectExtendedMetrics, disabledMetrics: disabledMetrics };
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}
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// case 4: no env vars set, input arg is a boolean, RETURN with isEnabled=collectExtendedMetrics, disabledMetrics={}
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if (typeof collectExtendedMetrics === "boolean") {
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return { isEnabled: collectExtendedMetrics, disabledMetrics: {} };
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}
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else {
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// case 5: no env vars set, input arg is object, RETURN with isEnabled=true, disabledMetrics=collectExtendedMetrics
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return { isEnabled: true, disabledMetrics: collectExtendedMetrics };
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}
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};
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/**
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* Trigger an iteration of native metrics collection
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*
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* @private
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* @memberof AutoCollectNativePerformance
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*/
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AutoCollectNativePerformance.prototype._trackNativeMetrics = function () {
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var shouldSendAll = true;
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if (typeof this._isEnabled !== "object") {
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shouldSendAll = this._isEnabled;
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}
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if (shouldSendAll) {
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this._trackGarbageCollection();
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this._trackEventLoop();
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this._trackHeapUsage();
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}
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};
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/**
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* Tracks garbage collection stats for this interval. One custom metric is sent per type of garbage
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* collection that occurred during this collection interval.
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*
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* @private
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* @memberof AutoCollectNativePerformance
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*/
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AutoCollectNativePerformance.prototype._trackGarbageCollection = function () {
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if (this._disabledMetrics.gc) {
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return;
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}
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var gcData = AutoCollectNativePerformance._emitter.getGCData();
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for (var gc in gcData) {
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var metrics = gcData[gc].metrics;
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var name_1 = gc + " Garbage Collection Duration";
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var stdDev = Math.sqrt(metrics.sumSquares / metrics.count - Math.pow(metrics.total / metrics.count, 2)) || 0;
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this._client.trackMetric({
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name: name_1,
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value: metrics.total,
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count: metrics.count,
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max: metrics.max,
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min: metrics.min,
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stdDev: stdDev,
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tagOverrides: (_a = {},
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_a[this._client.context.keys.internalSdkVersion] = "node-nativeperf:" + Context.sdkVersion,
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_a)
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});
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}
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var _a;
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};
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/**
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* Tracks event loop ticks per interval as a custom metric. Also included in the metric is min/max/avg
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* time spent in event loop for this interval.
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*
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* @private
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* @returns {void}
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* @memberof AutoCollectNativePerformance
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*/
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AutoCollectNativePerformance.prototype._trackEventLoop = function () {
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if (this._disabledMetrics.loop) {
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return;
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}
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var loopData = AutoCollectNativePerformance._emitter.getLoopData();
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var metrics = loopData.loopUsage;
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if (metrics.count == 0) {
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return;
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}
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var name = "Event Loop CPU Time";
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var stdDev = Math.sqrt(metrics.sumSquares / metrics.count - Math.pow(metrics.total / metrics.count, 2)) || 0;
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this._client.trackMetric({
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name: name,
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value: metrics.total,
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count: metrics.count,
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min: metrics.min,
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max: metrics.max,
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stdDev: stdDev,
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tagOverrides: (_a = {},
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_a[this._client.context.keys.internalSdkVersion] = "node-nativeperf:" + Context.sdkVersion,
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_a)
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});
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var _a;
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};
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/**
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* Track heap memory usage metrics as a custom metric.
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*
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* @private
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* @memberof AutoCollectNativePerformance
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*/
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AutoCollectNativePerformance.prototype._trackHeapUsage = function () {
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if (this._disabledMetrics.heap) {
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return;
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}
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var memoryUsage = process.memoryUsage();
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var heapUsed = memoryUsage.heapUsed, heapTotal = memoryUsage.heapTotal, rss = memoryUsage.rss;
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this._client.trackMetric({
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name: "Memory Usage (Heap)",
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value: heapUsed,
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count: 1,
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tagOverrides: (_a = {},
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_a[this._client.context.keys.internalSdkVersion] = "node-nativeperf:" + Context.sdkVersion,
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_a)
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});
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this._client.trackMetric({
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name: "Memory Total (Heap)",
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value: heapTotal,
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count: 1,
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tagOverrides: (_b = {},
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_b[this._client.context.keys.internalSdkVersion] = "node-nativeperf:" + Context.sdkVersion,
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_b)
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});
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this._client.trackMetric({
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name: "Memory Usage (Non-Heap)",
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value: rss - heapTotal,
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count: 1,
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tagOverrides: (_c = {},
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_c[this._client.context.keys.internalSdkVersion] = "node-nativeperf:" + Context.sdkVersion,
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_c)
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});
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var _a, _b, _c;
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};
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return AutoCollectNativePerformance;
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}());
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exports.AutoCollectNativePerformance = AutoCollectNativePerformance;
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//# sourceMappingURL=NativePerformance.js.map
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