mirror of
https://github.com/overleaf/overleaf.git
synced 2024-11-21 20:47:08 -05:00
399 lines
12 KiB
JavaScript
399 lines
12 KiB
JavaScript
const minimist = require('minimist')
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const settings = require('@overleaf/settings')
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const ProjectDetailsHandler = require('../app/src/Features/Project/ProjectDetailsHandler')
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const mongodb = require('../app/src/infrastructure/mongodb')
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const mongoose = require('../app/src/infrastructure/Mongoose')
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const crypto = require('crypto')
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const fetch = require('node-fetch')
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const { ObjectId } = mongodb
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const _ = require('lodash')
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// Examples:
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//
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// Simple usage:
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// node stress_test.js --project-id=ID -n 100 --download-zip # download 100 zips from history-v1
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// node stress_test.js --project-id=ID -n 100 --create-blob # create 100 blobs in history-v1
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// node stress_test.js --project-id=ID -n 100 --fetch-blob # create blob and fetch it 100 times from history-v1
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// node stress_test.js --project-id=ID -n 100 --upload-file # upload 100 files to filestore
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// node stress_test.js --project-id=ID -n 100 --download-file # create file in filestore and download it 100 times
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//
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// Delay between requests:
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// node stress_test.js --project-id=ID -n 100 --download-zip --sleep=0.1 # download 100 zips from history-v1 with 0.1s sleep
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//
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// Abort requests at random times:
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// node stress_test.js --project-id=ID -n 100 --download-zip --abort # download 100 zips from history-v1 with aborts
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//
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// Parallel workers:
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// node stress_test.js --project-id=ID -n 1000 -j 10 --upload-file # upload 1000 files in 10 parallel workers
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//
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// Fixed file size:
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// node stress_test.js --project-id=ID -n 1000 --size 1000000 --upload-file # upload 1000 files of 1MB in 10 parallel workers
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//
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// Random file size:
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// node stress_test.js --project-id=ID -n 1000 --size-min 1024 --size-max 10000000 --upload-file # upload 1000 files of 1KB to 10MB in 10 parallel workers
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const argv = minimist(process.argv.slice(2), {
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string: ['n', 'j', 'project-id', 'sleep', 'size', 'size-min', 'size-max'],
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boolean: [
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'download-zip',
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'create-blob',
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'fetch-blob',
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'upload-file',
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'download-file',
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'abort',
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],
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default: {
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n: 1,
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j: 1,
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sleep: 1,
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size: 100 * 1024,
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},
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})
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const projectId = argv['project-id']
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if (!projectId) {
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console.error(
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'Usage: node stress_test.js --project-id ID -n COUNT -j CONCURRENCY --sleep T --size BYTES --[create-blob|fetch-blob|download-zip|upload-file|download-file]'
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)
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process.exit(1)
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}
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process.on('exit', () => {
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log('Exiting')
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})
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async function sleep() {
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const ms = argv.sleep * 1000 * (0.5 + Math.random())
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return new Promise(resolve => setTimeout(resolve, ms))
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}
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function log(...args) {
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const date = new Date()
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console.log(date.toISOString(), ...args)
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}
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let abortTime = 1000
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function adjustAbortTime(aborted, dt) {
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if (!argv.abort) {
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return
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}
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// If the last task was aborted, increase the abort time gradually
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// Otherwise, reset the abort time to a random fraction of the response time.
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if (aborted) {
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abortTime = Math.min(abortTime * 1.5, 10000)
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} else {
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abortTime = Math.random() * dt
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}
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// Clamp to valid AbortSignal times
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abortTime = Math.max(1, Math.round(abortTime))
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}
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function abortSignal() {
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if (!argv.abort) {
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return
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}
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return AbortSignal.timeout(abortTime)
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}
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async function stressTest(testCase, numberOfRuns, concurrentJobs) {
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process.on('SIGINT', () => {
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log('Caught interrupt signal. Running cleanup...')
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numberOfRuns = 0
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})
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let startedTasks = 0
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let finishedTasks = 0
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let abortedTasks = 0
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const periodicLog = _.throttle(log, 1000, { leading: true })
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const errors = []
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const { action, cleanup } = testCase
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const executeTask = async () => {
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startedTasks++
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await sleep()
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const t0 = Date.now()
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try {
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await action(abortSignal())
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finishedTasks++
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adjustAbortTime(false, Date.now() - t0)
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} catch (err) {
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if (err.name === 'AbortError') {
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abortedTasks++
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adjustAbortTime(true, Date.now() - t0)
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} else {
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errors.push(err)
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log(startedTasks, err)
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}
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} finally {
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periodicLog(
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`Completed ${finishedTasks} / Aborted ${abortedTasks} / Errors ${errors.length}`
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)
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}
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if (startedTasks < numberOfRuns) {
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await executeTask()
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}
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}
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const workers = []
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for (let i = 0; i < concurrentJobs; i++) {
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workers.push(executeTask())
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}
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try {
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await Promise.all(workers)
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periodicLog.cancel()
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log(
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`Completed ${finishedTasks} / Aborted ${abortedTasks} / Errors ${errors.length}`
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)
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log(startedTasks, 'tasks completed')
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if (cleanup) {
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log('Cleaning up')
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try {
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await cleanup()
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} catch (err) {
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log('error cleaning up', err)
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}
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}
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} catch (err) {
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log('error running stress test', err)
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}
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if (errors.length > 0) {
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log('Errors:', errors.length)
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throw new Error('Errors')
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}
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}
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function generateRandomBuffer(size) {
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return Buffer.alloc(size, crypto.randomUUID())
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}
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function computeGitHash(buffer) {
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const byteLength = buffer.byteLength
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const hash = crypto.createHash('sha1')
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hash.setEncoding('hex')
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hash.update('blob ' + byteLength + '\x00')
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hash.update(buffer)
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hash.end()
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return { hashHex: hash.read(), byteLength }
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}
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function computeMD5Hash(buffer) {
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const hash = crypto.createHash('md5')
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hash.update(buffer)
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return hash.digest('hex')
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}
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function readableSize(size) {
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// convert a size in bytes to a human readable string
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const units = ['B', 'KB', 'MB', 'GB']
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let i = 0
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while (size > 1024 && i < units.length) {
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size /= 1024
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i++
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}
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return `${size.toFixed(2)} ${units[i]}`.trim()
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}
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class SizeGenerator {
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constructor() {
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if (argv['size-min'] && argv['size-max']) {
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this.size_min = parseInt(argv['size-min']) || 0
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this.size_max = parseInt(argv['size-max']) || argv.size
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log(
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`File size range [${readableSize(this.size_min)}, ${readableSize(
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this.size_max
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)}]`
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)
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} else {
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this.size = parseInt(argv.size)
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this.fixed = true
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log('File size', readableSize(this.size))
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}
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}
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get() {
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return this.fixed
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? this.size
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: this.size_min + Math.random() * (this.size_max - this.size_min)
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}
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}
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async function createBlob(projectId) {
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log('Getting history id')
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const v1Id = await getHistoryId(projectId)
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// generate a random blob in a buffer and compute the git hash of the buffer
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log('Creating test blob')
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const userSize = new SizeGenerator()
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async function putBlob(abortSignal) {
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// create a random buffer and compute its hash
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const buffer = generateRandomBuffer(userSize.get())
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const { hashHex, byteLength } = computeGitHash(buffer)
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const putUrl = `${settings.apis.v1_history.url}/projects/${v1Id}/blobs/${hashHex}`
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const response = await historyFetch(putUrl, {
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method: 'PUT',
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body: buffer,
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signal: abortSignal,
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})
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if (!response.ok) {
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throw new Error(`failed to put blob ${putUrl} status=${response.status}`)
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}
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return { hashHex, byteLength }
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}
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return { action: putBlob, description: 'createBlob in history-v1' }
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}
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async function fetchBlob(projectId) {
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log('Getting history id and creating test blob')
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const v1Id = await getHistoryId(projectId)
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const { action: putBlob } = await createBlob(projectId)
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const { hashHex, byteLength } = await putBlob()
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async function getBlob(abortSignal) {
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const getUrl = `${settings.apis.v1_history.url}/projects/${v1Id}/blobs/${hashHex}`
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const response = await historyFetch(getUrl, { signal: abortSignal })
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if (!response.ok) {
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throw new Error(`failed to get blob ${getUrl} status=${response.status}`)
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}
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const buffer = await response.arrayBuffer()
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if (buffer.byteLength !== byteLength) {
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throw new Error(
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`unexpected fetch blob length ${buffer.byteLength} vs expected ${byteLength}`
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)
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}
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}
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return { action: getBlob, description: 'fetchBlob from history-v1' }
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}
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async function getHistoryId(projectId) {
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const project = await ProjectDetailsHandler.promises.getDetails(projectId)
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const v1Id = project?.overleaf?.history?.id
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return v1Id
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}
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async function downloadHistoryZip(projectId) {
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log('Getting history id and latest version')
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const v1Id = await getHistoryId(projectId)
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const latestUrl = `${settings.apis.v1_history.url}/projects/${v1Id}/latest/history`
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let response = await historyFetch(latestUrl)
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if (!response.ok) {
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throw new Error(
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`failed to get latest version ${latestUrl} status=${response.status}`
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)
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}
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const latestBody = await response.json()
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const version =
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latestBody.chunk.startVersion + latestBody.chunk.history.changes.length
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const zipUrl = `${settings.apis.v1_history.url}/projects/${v1Id}/version/${version}/zip`
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let expectedLength = null
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async function getZip(abortSignal) {
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response = await historyFetch(zipUrl, { signal: abortSignal })
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const responseBuffer = await response.arrayBuffer()
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if (expectedLength === null) {
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expectedLength = responseBuffer.byteLength
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} else if (responseBuffer.byteLength !== expectedLength) {
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throw new Error(
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`unexpected zip download length ${responseBuffer.byteLength} vs expected ${expectedLength}`
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)
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}
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}
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return { action: getZip, description: 'download zip from history-v1' }
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}
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async function historyFetch(url, options) {
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const authHeader = {
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Authorization: `Basic ${Buffer.from(
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`${settings.apis.v1_history.user}:${settings.apis.v1_history.pass}`
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).toString('base64')}`,
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}
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const response = await fetch(url, { ...options, headers: authHeader })
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if (!response.ok) {
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throw new Error(`failed to download url ${url} status=${response.status}`)
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}
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return response
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}
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async function _deleteFile(url, log) {
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const response = await fetch(url, { method: 'DELETE' })
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if (!response.ok) {
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throw new Error(`failed to delete file status=${response.status}`)
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}
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}
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async function uploadFile(projectId) {
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// generate a random blob in a buffer and compute the md5 hash of the buffer
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const userSize = new SizeGenerator()
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async function upload(abortSignal, deleteFile = true) {
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const size = userSize.get()
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const buffer = Buffer.alloc(size, crypto.randomUUID())
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const fileId = ObjectId()
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const url = `${settings.apis.filestore.url}/project/${projectId}/file/${fileId}`
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const md5 = computeMD5Hash(buffer)
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const response = await fetch(url, {
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method: 'POST',
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body: buffer,
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signal: abortSignal,
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})
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if (!response.ok) {
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throw new Error(`failed to upload file ${url} status=${response.status}`)
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}
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if (deleteFile) {
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await _deleteFile(url)
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}
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return { url, md5 }
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}
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return { action: upload, description: 'upload file to filestore' }
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}
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async function downloadFile(projectId) {
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log('Creating test file')
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const { action: upload } = await uploadFile(projectId)
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const { url, md5: expectedMd5 } = await upload(null, false)
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async function download(abortSignal) {
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const response = await fetch(url, {
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method: 'GET',
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signal: abortSignal,
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})
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if (!response.ok) {
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throw new Error(`failed to get file ${url} status=${response.status}`)
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}
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const md5 = computeMD5Hash(Buffer.from(await response.arrayBuffer()))
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if (md5 !== expectedMd5) {
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throw new Error(`md5 mismatch`)
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}
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}
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async function cleanup() {
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log('Deleting test file')
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await _deleteFile(url)
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}
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return {
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action: download,
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cleanup,
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description: 'download file from filestore',
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}
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}
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async function run() {
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let testCase
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if (argv['download-zip']) {
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testCase = await downloadHistoryZip(projectId)
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} else if (argv['create-blob']) {
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testCase = await createBlob(projectId)
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} else if (argv['fetch-blob']) {
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testCase = await fetchBlob(projectId)
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} else if (argv['upload-file']) {
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testCase = await uploadFile(projectId)
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} else if (argv['download-file']) {
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testCase = await downloadFile(projectId)
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} else {
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throw new Error('unknown command')
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}
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log('Running stress test:', testCase.description)
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await stressTest(testCase, argv.n, argv.j)
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log('Stress test done')
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}
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Promise.all([mongodb.waitForDb(), mongoose.connectionPromise])
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.then(() => run())
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.then(() => {
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log('Completed')
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process.exit(0)
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})
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.catch(error => {
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console.error(error)
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process.exit(1)
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})
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