762a240890
- Log system revamp: - Logs to stdout, disabled while testing - Use header `X-Request-Id`, or create a new `uuid` when no present, to identyfy log entries - Be able to set log level from env variable `LOG_LEVEL`, useful while testing: `LOG_LEVEL=info npm test`; even more human-readable: `LOG_LEVEL=info npm t | ./node_modules/.bin/pino-pretty` - Be able to reduce the footprint in the final log file depending on the environment - Use one logger for every service: Queries, Batch Queries (Jobs), and Data Ingestion (CopyTo/CopyFrom) - Stop using headers such as: `X-SQL-API-Log`, `X-SQL-API-Profiler`, and `X-SQL-API-Errors` as a way to log info. - Be able to tag requests with labels as an easier way to provide business metrics - Metro: Add log-collector utility (`metro`), it will be moved to its own repository. Attaching it here fro development purposes. Try it with the following command `LOG_LEVEL=info npm t | node metro` - Metro: Creates `metrics-collector.js` a stream to update Prometheus' counters and histograms and exposes them via Express' app (`:9145/metrics`). Use the ones defined in `grok_exporter` Announcements: - Profiler is always set. No need to check its existence anymore - Unify profiler usage for every endpoint Bug fixes: - Avoid hung requests while fetching user identifier
60 lines
1.3 KiB
JavaScript
60 lines
1.3 KiB
JavaScript
'use strict';
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var Profiler = require('step-profiler');
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/**
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* Proxy to encapsulate node-step-profiler module so there is no need to check if there is an instance
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*/
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function ProfilerProxy (opts) {
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this.profile = !!opts.profile;
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this.profiler = null;
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if (opts.profile) {
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this.profiler = new Profiler({ statsd_client: opts.statsd_client });
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}
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}
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ProfilerProxy.prototype.done = function (what) {
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if (this.profile) {
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this.profiler.done(what);
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}
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};
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ProfilerProxy.prototype.end = function () {
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if (this.profile) {
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this.profiler.end();
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}
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};
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ProfilerProxy.prototype.start = function (what) {
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if (this.profile) {
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this.profiler.start(what);
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}
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};
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ProfilerProxy.prototype.add = function (what) {
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if (this.profile) {
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this.profiler.add(what || {});
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}
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};
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ProfilerProxy.prototype.sendStats = function () {
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if (this.profile) {
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this.profiler.sendStats();
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}
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};
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ProfilerProxy.prototype.toString = function () {
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return this.profile ? this.profiler.toString() : '';
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};
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ProfilerProxy.prototype.toJSONString = function () {
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return this.profile ? this.profiler.toJSONString() : '{}';
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};
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ProfilerProxy.prototype.toJSON = function () {
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return this.profile ? JSON.parse(this.profiler.toJSONString()) : {};
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};
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module.exports = ProfilerProxy;
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