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1 | import { dirname, extname, join } from 'node:path' |
2 | import { fileURLToPath } from 'node:url' | |
ded253e2 JB |
3 | |
4 | import { availableParallelism, FixedClusterPool } from 'poolifier' | |
5 | ||
d0ed34c9 JB |
6 | import type { ClusterWorkerData, ClusterWorkerResponse } from './types.js' |
7 | ||
8 | const expressWorkerFile = join( | |
9 | dirname(fileURLToPath(import.meta.url)), | |
10 | `express-worker${extname(fileURLToPath(import.meta.url))}` | |
11 | ) | |
12 | ||
13 | const requestHandlerWorkerFile = join( | |
14 | dirname(fileURLToPath(import.meta.url)), | |
15 | `request-handler-worker${extname(fileURLToPath(import.meta.url))}` | |
16 | ) | |
17 | ||
18 | const pool = new FixedClusterPool<ClusterWorkerData, ClusterWorkerResponse>( | |
19 | availableParallelism(), | |
20 | expressWorkerFile, | |
21 | { | |
c5033c2d | 22 | enableEvents: false, |
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23 | onlineHandler: () => { |
24 | pool | |
25 | .execute({ | |
26 | port: 8080, | |
27 | maxWorkers: | |
28 | Math.round(availableParallelism() / 4) < 1 | |
29 | ? 1 | |
30 | : Math.round(availableParallelism() / 4), | |
31 | workerFile: requestHandlerWorkerFile, | |
32 | enableTasksQueue: true, | |
33 | tasksQueueOptions: { | |
3a502712 | 34 | concurrency: 8, |
d0ed34c9 JB |
35 | }, |
36 | errorHandler: (e: Error) => { | |
37 | console.error('Thread worker error:', e) | |
3a502712 | 38 | }, |
d0ed34c9 | 39 | }) |
041dc05b | 40 | .then(response => { |
d0ed34c9 JB |
41 | if (response.status) { |
42 | console.info( | |
6e5d7052 JB |
43 | // eslint-disable-next-line @typescript-eslint/restrict-template-expressions |
44 | `Express is listening in cluster worker on port ${response.port?.toString()}` | |
d0ed34c9 JB |
45 | ) |
46 | } | |
fefd3cef | 47 | return undefined |
d0ed34c9 | 48 | }) |
07f6f7b1 | 49 | .catch((error: unknown) => { |
d0ed34c9 JB |
50 | console.error('Express failed to start in cluster worker:', error) |
51 | }) | |
52 | }, | |
53 | errorHandler: (e: Error) => { | |
54 | console.error('Cluster worker error:', e) | |
3a502712 | 55 | }, |
d0ed34c9 JB |
56 | } |
57 | ) |