| 1 | import { dirname, extname, join } from 'node:path' |
| 2 | import { fileURLToPath } from 'node:url' |
| 3 | import { FixedClusterPool, availableParallelism } from 'poolifier' |
| 4 | import type { ClusterWorkerData, ClusterWorkerResponse } from './types.js' |
| 5 | |
| 6 | const fastifyWorkerFile = join( |
| 7 | dirname(fileURLToPath(import.meta.url)), |
| 8 | `fastify-worker${extname(fileURLToPath(import.meta.url))}` |
| 9 | ) |
| 10 | |
| 11 | const requestHandlerWorkerFile = join( |
| 12 | dirname(fileURLToPath(import.meta.url)), |
| 13 | `request-handler-worker${extname(fileURLToPath(import.meta.url))}` |
| 14 | ) |
| 15 | |
| 16 | const pool = new FixedClusterPool<ClusterWorkerData, ClusterWorkerResponse>( |
| 17 | Math.round(availableParallelism() / 2), |
| 18 | fastifyWorkerFile, |
| 19 | { |
| 20 | onlineHandler: () => { |
| 21 | pool |
| 22 | .execute({ |
| 23 | port: 8080, |
| 24 | workerFile: requestHandlerWorkerFile, |
| 25 | maxWorkers: |
| 26 | Math.round(availableParallelism() / 4) < 1 |
| 27 | ? 1 |
| 28 | : Math.round(availableParallelism() / 4), |
| 29 | enableTasksQueue: true, |
| 30 | tasksQueueOptions: { |
| 31 | concurrency: 8 |
| 32 | }, |
| 33 | errorHandler: (e: Error) => { |
| 34 | console.error('Thread worker error', e) |
| 35 | } |
| 36 | }) |
| 37 | .then(response => { |
| 38 | if (response.status) { |
| 39 | console.info( |
| 40 | // eslint-disable-next-line @typescript-eslint/restrict-template-expressions |
| 41 | `Fastify is listening in cluster worker on port ${response.port}` |
| 42 | ) |
| 43 | } |
| 44 | return undefined |
| 45 | }) |
| 46 | .catch(error => { |
| 47 | console.error('Fastify failed to start in cluster worker:', error) |
| 48 | }) |
| 49 | }, |
| 50 | errorHandler: (e: Error) => { |
| 51 | console.error('Cluster worker error:', e) |
| 52 | } |
| 53 | } |
| 54 | ) |