Commit | Line | Data |
---|---|---|
fc3e6586 | 1 | import crypto from 'node:crypto' |
62c15a68 | 2 | import { performance } from 'node:perf_hooks' |
2740a743 | 3 | import type { MessageValue, PromiseResponseWrapper } from '../utility-types' |
bbeadd16 JB |
4 | import { |
5 | DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS, | |
6 | EMPTY_FUNCTION, | |
0d80593b | 7 | isPlainObject, |
afe0d5bf JB |
8 | median, |
9 | round | |
bbeadd16 | 10 | } from '../utils' |
34a0cfab | 11 | import { KillBehaviors, isKillBehavior } from '../worker/worker-options' |
65d7a1c9 | 12 | import { CircularArray } from '../circular-array' |
29ee7e9a | 13 | import { Queue } from '../queue' |
c4855468 | 14 | import { |
65d7a1c9 | 15 | type IPool, |
7c5a1080 | 16 | PoolEmitter, |
c4855468 | 17 | PoolEvents, |
6b27d407 | 18 | type PoolInfo, |
c4855468 | 19 | type PoolOptions, |
6b27d407 JB |
20 | type PoolType, |
21 | PoolTypes, | |
184855e6 JB |
22 | type TasksQueueOptions, |
23 | type WorkerType | |
c4855468 | 24 | } from './pool' |
e102732c JB |
25 | import type { |
26 | IWorker, | |
27 | MessageHandler, | |
28 | Task, | |
29 | WorkerNode, | |
30 | WorkerUsage | |
31 | } from './worker' | |
a35560ba | 32 | import { |
f0d7f803 | 33 | Measurements, |
a35560ba | 34 | WorkerChoiceStrategies, |
a20f0ba5 JB |
35 | type WorkerChoiceStrategy, |
36 | type WorkerChoiceStrategyOptions | |
bdaf31cd JB |
37 | } from './selection-strategies/selection-strategies-types' |
38 | import { WorkerChoiceStrategyContext } from './selection-strategies/worker-choice-strategy-context' | |
c97c7edb | 39 | |
729c563d | 40 | /** |
ea7a90d3 | 41 | * Base class that implements some shared logic for all poolifier pools. |
729c563d | 42 | * |
38e795c1 | 43 | * @typeParam Worker - Type of worker which manages this pool. |
e102732c JB |
44 | * @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data. |
45 | * @typeParam Response - Type of execution response. This can only be structured-cloneable data. | |
729c563d | 46 | */ |
c97c7edb | 47 | export abstract class AbstractPool< |
f06e48d8 | 48 | Worker extends IWorker, |
d3c8a1a8 S |
49 | Data = unknown, |
50 | Response = unknown | |
c4855468 | 51 | > implements IPool<Worker, Data, Response> { |
afc003b2 | 52 | /** @inheritDoc */ |
f06e48d8 | 53 | public readonly workerNodes: Array<WorkerNode<Worker, Data>> = [] |
4a6952ff | 54 | |
afc003b2 | 55 | /** @inheritDoc */ |
7c0ba920 JB |
56 | public readonly emitter?: PoolEmitter |
57 | ||
be0676b3 | 58 | /** |
a3445496 | 59 | * The execution response promise map. |
be0676b3 | 60 | * |
2740a743 | 61 | * - `key`: The message id of each submitted task. |
a3445496 | 62 | * - `value`: An object that contains the worker, the execution response promise resolve and reject callbacks. |
be0676b3 | 63 | * |
a3445496 | 64 | * When we receive a message from the worker, we get a map entry with the promise resolve/reject bound to the message id. |
be0676b3 | 65 | */ |
c923ce56 JB |
66 | protected promiseResponseMap: Map< |
67 | string, | |
68 | PromiseResponseWrapper<Worker, Response> | |
69 | > = new Map<string, PromiseResponseWrapper<Worker, Response>>() | |
c97c7edb | 70 | |
a35560ba | 71 | /** |
51fe3d3c | 72 | * Worker choice strategy context referencing a worker choice algorithm implementation. |
a35560ba S |
73 | */ |
74 | protected workerChoiceStrategyContext: WorkerChoiceStrategyContext< | |
78cea37e JB |
75 | Worker, |
76 | Data, | |
77 | Response | |
a35560ba S |
78 | > |
79 | ||
afe0d5bf JB |
80 | /** |
81 | * The start timestamp of the pool. | |
82 | */ | |
83 | private readonly startTimestamp | |
84 | ||
729c563d S |
85 | /** |
86 | * Constructs a new poolifier pool. | |
87 | * | |
38e795c1 | 88 | * @param numberOfWorkers - Number of workers that this pool should manage. |
029715f0 | 89 | * @param filePath - Path to the worker file. |
38e795c1 | 90 | * @param opts - Options for the pool. |
729c563d | 91 | */ |
c97c7edb | 92 | public constructor ( |
b4213b7f JB |
93 | protected readonly numberOfWorkers: number, |
94 | protected readonly filePath: string, | |
95 | protected readonly opts: PoolOptions<Worker> | |
c97c7edb | 96 | ) { |
78cea37e | 97 | if (!this.isMain()) { |
c97c7edb S |
98 | throw new Error('Cannot start a pool from a worker!') |
99 | } | |
8d3782fa | 100 | this.checkNumberOfWorkers(this.numberOfWorkers) |
c510fea7 | 101 | this.checkFilePath(this.filePath) |
7c0ba920 | 102 | this.checkPoolOptions(this.opts) |
1086026a | 103 | |
7254e419 JB |
104 | this.chooseWorkerNode = this.chooseWorkerNode.bind(this) |
105 | this.executeTask = this.executeTask.bind(this) | |
106 | this.enqueueTask = this.enqueueTask.bind(this) | |
107 | this.checkAndEmitEvents = this.checkAndEmitEvents.bind(this) | |
1086026a | 108 | |
6bd72cd0 | 109 | if (this.opts.enableEvents === true) { |
7c0ba920 JB |
110 | this.emitter = new PoolEmitter() |
111 | } | |
d59df138 JB |
112 | this.workerChoiceStrategyContext = new WorkerChoiceStrategyContext< |
113 | Worker, | |
114 | Data, | |
115 | Response | |
da309861 JB |
116 | >( |
117 | this, | |
118 | this.opts.workerChoiceStrategy, | |
119 | this.opts.workerChoiceStrategyOptions | |
120 | ) | |
b6b32453 JB |
121 | |
122 | this.setupHook() | |
123 | ||
afe0d5bf | 124 | while (this.workerNodes.length < this.numberOfWorkers) { |
b6b32453 JB |
125 | this.createAndSetupWorker() |
126 | } | |
afe0d5bf JB |
127 | |
128 | this.startTimestamp = performance.now() | |
c97c7edb S |
129 | } |
130 | ||
a35560ba | 131 | private checkFilePath (filePath: string): void { |
ffcbbad8 JB |
132 | if ( |
133 | filePath == null || | |
134 | (typeof filePath === 'string' && filePath.trim().length === 0) | |
135 | ) { | |
c510fea7 APA |
136 | throw new Error('Please specify a file with a worker implementation') |
137 | } | |
138 | } | |
139 | ||
8d3782fa JB |
140 | private checkNumberOfWorkers (numberOfWorkers: number): void { |
141 | if (numberOfWorkers == null) { | |
142 | throw new Error( | |
143 | 'Cannot instantiate a pool without specifying the number of workers' | |
144 | ) | |
78cea37e | 145 | } else if (!Number.isSafeInteger(numberOfWorkers)) { |
473c717a | 146 | throw new TypeError( |
0d80593b | 147 | 'Cannot instantiate a pool with a non safe integer number of workers' |
8d3782fa JB |
148 | ) |
149 | } else if (numberOfWorkers < 0) { | |
473c717a | 150 | throw new RangeError( |
8d3782fa JB |
151 | 'Cannot instantiate a pool with a negative number of workers' |
152 | ) | |
6b27d407 | 153 | } else if (this.type === PoolTypes.fixed && numberOfWorkers === 0) { |
8d3782fa JB |
154 | throw new Error('Cannot instantiate a fixed pool with no worker') |
155 | } | |
156 | } | |
157 | ||
7c0ba920 | 158 | private checkPoolOptions (opts: PoolOptions<Worker>): void { |
0d80593b JB |
159 | if (isPlainObject(opts)) { |
160 | this.opts.workerChoiceStrategy = | |
161 | opts.workerChoiceStrategy ?? WorkerChoiceStrategies.ROUND_ROBIN | |
162 | this.checkValidWorkerChoiceStrategy(this.opts.workerChoiceStrategy) | |
163 | this.opts.workerChoiceStrategyOptions = | |
164 | opts.workerChoiceStrategyOptions ?? | |
165 | DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS | |
49be33fe JB |
166 | this.checkValidWorkerChoiceStrategyOptions( |
167 | this.opts.workerChoiceStrategyOptions | |
168 | ) | |
1f68cede | 169 | this.opts.restartWorkerOnError = opts.restartWorkerOnError ?? true |
0d80593b JB |
170 | this.opts.enableEvents = opts.enableEvents ?? true |
171 | this.opts.enableTasksQueue = opts.enableTasksQueue ?? false | |
172 | if (this.opts.enableTasksQueue) { | |
173 | this.checkValidTasksQueueOptions( | |
174 | opts.tasksQueueOptions as TasksQueueOptions | |
175 | ) | |
176 | this.opts.tasksQueueOptions = this.buildTasksQueueOptions( | |
177 | opts.tasksQueueOptions as TasksQueueOptions | |
178 | ) | |
179 | } | |
180 | } else { | |
181 | throw new TypeError('Invalid pool options: must be a plain object') | |
7171d33f | 182 | } |
aee46736 JB |
183 | } |
184 | ||
185 | private checkValidWorkerChoiceStrategy ( | |
186 | workerChoiceStrategy: WorkerChoiceStrategy | |
187 | ): void { | |
188 | if (!Object.values(WorkerChoiceStrategies).includes(workerChoiceStrategy)) { | |
b529c323 | 189 | throw new Error( |
aee46736 | 190 | `Invalid worker choice strategy '${workerChoiceStrategy}'` |
b529c323 JB |
191 | ) |
192 | } | |
7c0ba920 JB |
193 | } |
194 | ||
0d80593b JB |
195 | private checkValidWorkerChoiceStrategyOptions ( |
196 | workerChoiceStrategyOptions: WorkerChoiceStrategyOptions | |
197 | ): void { | |
198 | if (!isPlainObject(workerChoiceStrategyOptions)) { | |
199 | throw new TypeError( | |
200 | 'Invalid worker choice strategy options: must be a plain object' | |
201 | ) | |
202 | } | |
49be33fe JB |
203 | if ( |
204 | workerChoiceStrategyOptions.weights != null && | |
6b27d407 | 205 | Object.keys(workerChoiceStrategyOptions.weights).length !== this.maxSize |
49be33fe JB |
206 | ) { |
207 | throw new Error( | |
208 | 'Invalid worker choice strategy options: must have a weight for each worker node' | |
209 | ) | |
210 | } | |
f0d7f803 JB |
211 | if ( |
212 | workerChoiceStrategyOptions.measurement != null && | |
213 | !Object.values(Measurements).includes( | |
214 | workerChoiceStrategyOptions.measurement | |
215 | ) | |
216 | ) { | |
217 | throw new Error( | |
218 | `Invalid worker choice strategy options: invalid measurement '${workerChoiceStrategyOptions.measurement}'` | |
219 | ) | |
220 | } | |
0d80593b JB |
221 | } |
222 | ||
a20f0ba5 JB |
223 | private checkValidTasksQueueOptions ( |
224 | tasksQueueOptions: TasksQueueOptions | |
225 | ): void { | |
0d80593b JB |
226 | if (tasksQueueOptions != null && !isPlainObject(tasksQueueOptions)) { |
227 | throw new TypeError('Invalid tasks queue options: must be a plain object') | |
228 | } | |
f0d7f803 JB |
229 | if ( |
230 | tasksQueueOptions?.concurrency != null && | |
231 | !Number.isSafeInteger(tasksQueueOptions.concurrency) | |
232 | ) { | |
233 | throw new TypeError( | |
234 | 'Invalid worker tasks concurrency: must be an integer' | |
235 | ) | |
236 | } | |
237 | if ( | |
238 | tasksQueueOptions?.concurrency != null && | |
239 | tasksQueueOptions.concurrency <= 0 | |
240 | ) { | |
a20f0ba5 | 241 | throw new Error( |
f0d7f803 | 242 | `Invalid worker tasks concurrency '${tasksQueueOptions.concurrency}'` |
a20f0ba5 JB |
243 | ) |
244 | } | |
245 | } | |
246 | ||
08f3f44c | 247 | /** @inheritDoc */ |
6b27d407 JB |
248 | public get info (): PoolInfo { |
249 | return { | |
250 | type: this.type, | |
184855e6 | 251 | worker: this.worker, |
6b27d407 JB |
252 | minSize: this.minSize, |
253 | maxSize: this.maxSize, | |
afe0d5bf | 254 | utilization: round(this.utilization), |
6b27d407 JB |
255 | workerNodes: this.workerNodes.length, |
256 | idleWorkerNodes: this.workerNodes.reduce( | |
257 | (accumulator, workerNode) => | |
465b2940 | 258 | workerNode.usage.tasks.executing === 0 |
a4e07f72 JB |
259 | ? accumulator + 1 |
260 | : accumulator, | |
6b27d407 JB |
261 | 0 |
262 | ), | |
263 | busyWorkerNodes: this.workerNodes.reduce( | |
264 | (accumulator, workerNode) => | |
465b2940 | 265 | workerNode.usage.tasks.executing > 0 ? accumulator + 1 : accumulator, |
6b27d407 JB |
266 | 0 |
267 | ), | |
a4e07f72 | 268 | executedTasks: this.workerNodes.reduce( |
6b27d407 | 269 | (accumulator, workerNode) => |
465b2940 | 270 | accumulator + workerNode.usage.tasks.executed, |
a4e07f72 JB |
271 | 0 |
272 | ), | |
273 | executingTasks: this.workerNodes.reduce( | |
274 | (accumulator, workerNode) => | |
465b2940 | 275 | accumulator + workerNode.usage.tasks.executing, |
6b27d407 JB |
276 | 0 |
277 | ), | |
278 | queuedTasks: this.workerNodes.reduce( | |
df593701 | 279 | (accumulator, workerNode) => |
465b2940 | 280 | accumulator + workerNode.usage.tasks.queued, |
6b27d407 JB |
281 | 0 |
282 | ), | |
283 | maxQueuedTasks: this.workerNodes.reduce( | |
284 | (accumulator, workerNode) => | |
465b2940 | 285 | accumulator + workerNode.usage.tasks.maxQueued, |
6b27d407 | 286 | 0 |
a4e07f72 JB |
287 | ), |
288 | failedTasks: this.workerNodes.reduce( | |
289 | (accumulator, workerNode) => | |
465b2940 | 290 | accumulator + workerNode.usage.tasks.failed, |
a4e07f72 | 291 | 0 |
6b27d407 JB |
292 | ) |
293 | } | |
294 | } | |
08f3f44c | 295 | |
afe0d5bf JB |
296 | /** |
297 | * Gets the pool run time. | |
298 | * | |
299 | * @returns The pool run time in milliseconds. | |
300 | */ | |
301 | private get runTime (): number { | |
302 | return performance.now() - this.startTimestamp | |
303 | } | |
304 | ||
305 | /** | |
306 | * Gets the approximate pool utilization. | |
307 | * | |
308 | * @returns The pool utilization. | |
309 | */ | |
310 | private get utilization (): number { | |
311 | const poolRunTimeCapacity = this.runTime * this.maxSize | |
312 | const totalTasksRunTime = this.workerNodes.reduce( | |
313 | (accumulator, workerNode) => | |
314 | accumulator + workerNode.usage.runTime.aggregate, | |
315 | 0 | |
316 | ) | |
317 | const totalTasksWaitTime = this.workerNodes.reduce( | |
318 | (accumulator, workerNode) => | |
319 | accumulator + workerNode.usage.waitTime.aggregate, | |
320 | 0 | |
321 | ) | |
322 | return (totalTasksRunTime + totalTasksWaitTime) / poolRunTimeCapacity | |
323 | } | |
324 | ||
8881ae32 JB |
325 | /** |
326 | * Pool type. | |
327 | * | |
328 | * If it is `'dynamic'`, it provides the `max` property. | |
329 | */ | |
330 | protected abstract get type (): PoolType | |
331 | ||
184855e6 JB |
332 | /** |
333 | * Gets the worker type. | |
334 | */ | |
335 | protected abstract get worker (): WorkerType | |
336 | ||
c2ade475 | 337 | /** |
6b27d407 | 338 | * Pool minimum size. |
c2ade475 | 339 | */ |
6b27d407 | 340 | protected abstract get minSize (): number |
ff733df7 JB |
341 | |
342 | /** | |
6b27d407 | 343 | * Pool maximum size. |
ff733df7 | 344 | */ |
6b27d407 | 345 | protected abstract get maxSize (): number |
a35560ba | 346 | |
ffcbbad8 | 347 | /** |
f06e48d8 | 348 | * Gets the given worker its worker node key. |
ffcbbad8 JB |
349 | * |
350 | * @param worker - The worker. | |
465b2940 | 351 | * @returns The worker node key if found in the pool worker nodes, `-1` otherwise. |
ffcbbad8 | 352 | */ |
f06e48d8 JB |
353 | private getWorkerNodeKey (worker: Worker): number { |
354 | return this.workerNodes.findIndex( | |
355 | workerNode => workerNode.worker === worker | |
356 | ) | |
bf9549ae JB |
357 | } |
358 | ||
afc003b2 | 359 | /** @inheritDoc */ |
a35560ba | 360 | public setWorkerChoiceStrategy ( |
59219cbb JB |
361 | workerChoiceStrategy: WorkerChoiceStrategy, |
362 | workerChoiceStrategyOptions?: WorkerChoiceStrategyOptions | |
a35560ba | 363 | ): void { |
aee46736 | 364 | this.checkValidWorkerChoiceStrategy(workerChoiceStrategy) |
b98ec2e6 | 365 | this.opts.workerChoiceStrategy = workerChoiceStrategy |
b6b32453 JB |
366 | this.workerChoiceStrategyContext.setWorkerChoiceStrategy( |
367 | this.opts.workerChoiceStrategy | |
368 | ) | |
369 | if (workerChoiceStrategyOptions != null) { | |
370 | this.setWorkerChoiceStrategyOptions(workerChoiceStrategyOptions) | |
371 | } | |
9c16fb4b | 372 | for (const [workerNodeKey, workerNode] of this.workerNodes.entries()) { |
8604aaab JB |
373 | this.setWorkerNodeTasksUsage( |
374 | workerNode, | |
9c16fb4b | 375 | this.getWorkerUsage(workerNodeKey) |
8604aaab | 376 | ) |
b6b32453 | 377 | this.setWorkerStatistics(workerNode.worker) |
59219cbb | 378 | } |
a20f0ba5 JB |
379 | } |
380 | ||
381 | /** @inheritDoc */ | |
382 | public setWorkerChoiceStrategyOptions ( | |
383 | workerChoiceStrategyOptions: WorkerChoiceStrategyOptions | |
384 | ): void { | |
0d80593b | 385 | this.checkValidWorkerChoiceStrategyOptions(workerChoiceStrategyOptions) |
a20f0ba5 JB |
386 | this.opts.workerChoiceStrategyOptions = workerChoiceStrategyOptions |
387 | this.workerChoiceStrategyContext.setOptions( | |
388 | this.opts.workerChoiceStrategyOptions | |
a35560ba S |
389 | ) |
390 | } | |
391 | ||
a20f0ba5 | 392 | /** @inheritDoc */ |
8f52842f JB |
393 | public enableTasksQueue ( |
394 | enable: boolean, | |
395 | tasksQueueOptions?: TasksQueueOptions | |
396 | ): void { | |
a20f0ba5 | 397 | if (this.opts.enableTasksQueue === true && !enable) { |
ef41a6e6 | 398 | this.flushTasksQueues() |
a20f0ba5 JB |
399 | } |
400 | this.opts.enableTasksQueue = enable | |
8f52842f | 401 | this.setTasksQueueOptions(tasksQueueOptions as TasksQueueOptions) |
a20f0ba5 JB |
402 | } |
403 | ||
404 | /** @inheritDoc */ | |
8f52842f | 405 | public setTasksQueueOptions (tasksQueueOptions: TasksQueueOptions): void { |
a20f0ba5 | 406 | if (this.opts.enableTasksQueue === true) { |
8f52842f JB |
407 | this.checkValidTasksQueueOptions(tasksQueueOptions) |
408 | this.opts.tasksQueueOptions = | |
409 | this.buildTasksQueueOptions(tasksQueueOptions) | |
5baee0d7 | 410 | } else if (this.opts.tasksQueueOptions != null) { |
a20f0ba5 JB |
411 | delete this.opts.tasksQueueOptions |
412 | } | |
413 | } | |
414 | ||
415 | private buildTasksQueueOptions ( | |
416 | tasksQueueOptions: TasksQueueOptions | |
417 | ): TasksQueueOptions { | |
418 | return { | |
419 | concurrency: tasksQueueOptions?.concurrency ?? 1 | |
420 | } | |
421 | } | |
422 | ||
c319c66b JB |
423 | /** |
424 | * Whether the pool is full or not. | |
425 | * | |
426 | * The pool filling boolean status. | |
427 | */ | |
dea903a8 JB |
428 | protected get full (): boolean { |
429 | return this.workerNodes.length >= this.maxSize | |
430 | } | |
c2ade475 | 431 | |
c319c66b JB |
432 | /** |
433 | * Whether the pool is busy or not. | |
434 | * | |
435 | * The pool busyness boolean status. | |
436 | */ | |
437 | protected abstract get busy (): boolean | |
7c0ba920 | 438 | |
6c6afb84 JB |
439 | /** |
440 | * Whether worker nodes are executing at least one task. | |
441 | * | |
442 | * @returns Worker nodes busyness boolean status. | |
443 | */ | |
c2ade475 | 444 | protected internalBusy (): boolean { |
e0ae6100 JB |
445 | return ( |
446 | this.workerNodes.findIndex(workerNode => { | |
465b2940 | 447 | return workerNode.usage.tasks.executing === 0 |
e0ae6100 JB |
448 | }) === -1 |
449 | ) | |
cb70b19d JB |
450 | } |
451 | ||
afc003b2 | 452 | /** @inheritDoc */ |
a86b6df1 | 453 | public async execute (data?: Data, name?: string): Promise<Response> { |
b6b32453 | 454 | const timestamp = performance.now() |
20dcad1a | 455 | const workerNodeKey = this.chooseWorkerNode() |
adc3c320 | 456 | const submittedTask: Task<Data> = { |
a86b6df1 | 457 | name, |
e5a5c0fc JB |
458 | // eslint-disable-next-line @typescript-eslint/consistent-type-assertions |
459 | data: data ?? ({} as Data), | |
b6b32453 | 460 | timestamp, |
adc3c320 JB |
461 | id: crypto.randomUUID() |
462 | } | |
2e81254d | 463 | const res = new Promise<Response>((resolve, reject) => { |
02706357 | 464 | this.promiseResponseMap.set(submittedTask.id as string, { |
2e81254d JB |
465 | resolve, |
466 | reject, | |
20dcad1a | 467 | worker: this.workerNodes[workerNodeKey].worker |
2e81254d JB |
468 | }) |
469 | }) | |
ff733df7 JB |
470 | if ( |
471 | this.opts.enableTasksQueue === true && | |
7171d33f | 472 | (this.busy || |
465b2940 | 473 | this.workerNodes[workerNodeKey].usage.tasks.executing >= |
7171d33f | 474 | ((this.opts.tasksQueueOptions as TasksQueueOptions) |
3528c992 | 475 | .concurrency as number)) |
ff733df7 | 476 | ) { |
26a929d7 JB |
477 | this.enqueueTask(workerNodeKey, submittedTask) |
478 | } else { | |
2e81254d | 479 | this.executeTask(workerNodeKey, submittedTask) |
adc3c320 | 480 | } |
ff733df7 | 481 | this.checkAndEmitEvents() |
78cea37e | 482 | // eslint-disable-next-line @typescript-eslint/return-await |
280c2a77 S |
483 | return res |
484 | } | |
c97c7edb | 485 | |
afc003b2 | 486 | /** @inheritDoc */ |
c97c7edb | 487 | public async destroy (): Promise<void> { |
1fbcaa7c | 488 | await Promise.all( |
875a7c37 JB |
489 | this.workerNodes.map(async (workerNode, workerNodeKey) => { |
490 | this.flushTasksQueue(workerNodeKey) | |
47aacbaa | 491 | // FIXME: wait for tasks to be finished |
f06e48d8 | 492 | await this.destroyWorker(workerNode.worker) |
1fbcaa7c JB |
493 | }) |
494 | ) | |
c97c7edb S |
495 | } |
496 | ||
4a6952ff | 497 | /** |
6c6afb84 | 498 | * Terminates the given worker. |
4a6952ff | 499 | * |
f06e48d8 | 500 | * @param worker - A worker within `workerNodes`. |
4a6952ff JB |
501 | */ |
502 | protected abstract destroyWorker (worker: Worker): void | Promise<void> | |
c97c7edb | 503 | |
729c563d | 504 | /** |
6677a3d3 JB |
505 | * Setup hook to execute code before worker nodes are created in the abstract constructor. |
506 | * Can be overridden. | |
afc003b2 JB |
507 | * |
508 | * @virtual | |
729c563d | 509 | */ |
280c2a77 | 510 | protected setupHook (): void { |
d99ba5a8 | 511 | // Intentionally empty |
280c2a77 | 512 | } |
c97c7edb | 513 | |
729c563d | 514 | /** |
280c2a77 S |
515 | * Should return whether the worker is the main worker or not. |
516 | */ | |
517 | protected abstract isMain (): boolean | |
518 | ||
519 | /** | |
2e81254d | 520 | * Hook executed before the worker task execution. |
bf9549ae | 521 | * Can be overridden. |
729c563d | 522 | * |
f06e48d8 | 523 | * @param workerNodeKey - The worker node key. |
1c6fe997 | 524 | * @param task - The task to execute. |
729c563d | 525 | */ |
1c6fe997 JB |
526 | protected beforeTaskExecutionHook ( |
527 | workerNodeKey: number, | |
528 | task: Task<Data> | |
529 | ): void { | |
465b2940 | 530 | const workerUsage = this.workerNodes[workerNodeKey].usage |
1c6fe997 JB |
531 | ++workerUsage.tasks.executing |
532 | this.updateWaitTimeWorkerUsage(workerUsage, task) | |
c97c7edb S |
533 | } |
534 | ||
c01733f1 | 535 | /** |
2e81254d | 536 | * Hook executed after the worker task execution. |
bf9549ae | 537 | * Can be overridden. |
c01733f1 | 538 | * |
c923ce56 | 539 | * @param worker - The worker. |
38e795c1 | 540 | * @param message - The received message. |
c01733f1 | 541 | */ |
2e81254d | 542 | protected afterTaskExecutionHook ( |
c923ce56 | 543 | worker: Worker, |
2740a743 | 544 | message: MessageValue<Response> |
bf9549ae | 545 | ): void { |
465b2940 | 546 | const workerUsage = this.workerNodes[this.getWorkerNodeKey(worker)].usage |
f1c06930 JB |
547 | this.updateTaskStatisticsWorkerUsage(workerUsage, message) |
548 | this.updateRunTimeWorkerUsage(workerUsage, message) | |
549 | this.updateEluWorkerUsage(workerUsage, message) | |
550 | } | |
551 | ||
552 | private updateTaskStatisticsWorkerUsage ( | |
553 | workerUsage: WorkerUsage, | |
554 | message: MessageValue<Response> | |
555 | ): void { | |
a4e07f72 JB |
556 | const workerTaskStatistics = workerUsage.tasks |
557 | --workerTaskStatistics.executing | |
558 | ++workerTaskStatistics.executed | |
82f36766 | 559 | if (message.taskError != null) { |
a4e07f72 | 560 | ++workerTaskStatistics.failed |
2740a743 | 561 | } |
f8eb0a2a JB |
562 | } |
563 | ||
a4e07f72 JB |
564 | private updateRunTimeWorkerUsage ( |
565 | workerUsage: WorkerUsage, | |
f8eb0a2a JB |
566 | message: MessageValue<Response> |
567 | ): void { | |
87de9ff5 JB |
568 | if ( |
569 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime | |
932fc8be | 570 | .aggregate |
87de9ff5 | 571 | ) { |
932fc8be | 572 | workerUsage.runTime.aggregate += message.taskPerformance?.runTime ?? 0 |
c6bd2650 | 573 | if ( |
932fc8be JB |
574 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime |
575 | .average && | |
a4e07f72 | 576 | workerUsage.tasks.executed !== 0 |
c6bd2650 | 577 | ) { |
a4e07f72 | 578 | workerUsage.runTime.average = |
f1c06930 JB |
579 | workerUsage.runTime.aggregate / |
580 | (workerUsage.tasks.executed - workerUsage.tasks.failed) | |
3032893a | 581 | } |
3fa4cdd2 | 582 | if ( |
932fc8be JB |
583 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().runTime |
584 | .median && | |
d715b7bc | 585 | message.taskPerformance?.runTime != null |
3fa4cdd2 | 586 | ) { |
a4e07f72 JB |
587 | workerUsage.runTime.history.push(message.taskPerformance.runTime) |
588 | workerUsage.runTime.median = median(workerUsage.runTime.history) | |
78099a15 | 589 | } |
3032893a | 590 | } |
f8eb0a2a JB |
591 | } |
592 | ||
a4e07f72 JB |
593 | private updateWaitTimeWorkerUsage ( |
594 | workerUsage: WorkerUsage, | |
1c6fe997 | 595 | task: Task<Data> |
f8eb0a2a | 596 | ): void { |
1c6fe997 JB |
597 | const timestamp = performance.now() |
598 | const taskWaitTime = timestamp - (task.timestamp ?? timestamp) | |
87de9ff5 JB |
599 | if ( |
600 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().waitTime | |
932fc8be | 601 | .aggregate |
87de9ff5 | 602 | ) { |
932fc8be | 603 | workerUsage.waitTime.aggregate += taskWaitTime ?? 0 |
09a6305f | 604 | if ( |
87de9ff5 | 605 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements() |
932fc8be | 606 | .waitTime.average && |
a4e07f72 | 607 | workerUsage.tasks.executed !== 0 |
09a6305f | 608 | ) { |
a4e07f72 | 609 | workerUsage.waitTime.average = |
f1c06930 JB |
610 | workerUsage.waitTime.aggregate / |
611 | (workerUsage.tasks.executed - workerUsage.tasks.failed) | |
09a6305f JB |
612 | } |
613 | if ( | |
87de9ff5 | 614 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements() |
932fc8be | 615 | .waitTime.median && |
1c6fe997 | 616 | taskWaitTime != null |
09a6305f | 617 | ) { |
1c6fe997 | 618 | workerUsage.waitTime.history.push(taskWaitTime) |
a4e07f72 | 619 | workerUsage.waitTime.median = median(workerUsage.waitTime.history) |
09a6305f | 620 | } |
0567595a | 621 | } |
c01733f1 | 622 | } |
623 | ||
a4e07f72 | 624 | private updateEluWorkerUsage ( |
5df69fab | 625 | workerUsage: WorkerUsage, |
62c15a68 JB |
626 | message: MessageValue<Response> |
627 | ): void { | |
5df69fab JB |
628 | if ( |
629 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu | |
630 | .aggregate | |
631 | ) { | |
632 | if (workerUsage.elu != null && message.taskPerformance?.elu != null) { | |
9adcefab JB |
633 | workerUsage.elu.idle.aggregate += message.taskPerformance.elu.idle |
634 | workerUsage.elu.active.aggregate += message.taskPerformance.elu.active | |
5df69fab JB |
635 | workerUsage.elu.utilization = |
636 | (workerUsage.elu.utilization + | |
637 | message.taskPerformance.elu.utilization) / | |
638 | 2 | |
639 | } else if (message.taskPerformance?.elu != null) { | |
640 | workerUsage.elu.idle.aggregate = message.taskPerformance.elu.idle | |
641 | workerUsage.elu.active.aggregate = message.taskPerformance.elu.active | |
642 | workerUsage.elu.utilization = message.taskPerformance.elu.utilization | |
643 | } | |
d715b7bc | 644 | if ( |
5df69fab JB |
645 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu |
646 | .average && | |
647 | workerUsage.tasks.executed !== 0 | |
648 | ) { | |
f1c06930 JB |
649 | const executedTasks = |
650 | workerUsage.tasks.executed - workerUsage.tasks.failed | |
5df69fab | 651 | workerUsage.elu.idle.average = |
f1c06930 | 652 | workerUsage.elu.idle.aggregate / executedTasks |
5df69fab | 653 | workerUsage.elu.active.average = |
f1c06930 | 654 | workerUsage.elu.active.aggregate / executedTasks |
5df69fab JB |
655 | } |
656 | if ( | |
657 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements().elu | |
658 | .median && | |
d715b7bc JB |
659 | message.taskPerformance?.elu != null |
660 | ) { | |
5df69fab JB |
661 | workerUsage.elu.idle.history.push(message.taskPerformance.elu.idle) |
662 | workerUsage.elu.active.history.push(message.taskPerformance.elu.active) | |
663 | workerUsage.elu.idle.median = median(workerUsage.elu.idle.history) | |
664 | workerUsage.elu.active.median = median(workerUsage.elu.active.history) | |
62c15a68 JB |
665 | } |
666 | } | |
667 | } | |
668 | ||
280c2a77 | 669 | /** |
f06e48d8 | 670 | * Chooses a worker node for the next task. |
280c2a77 | 671 | * |
6c6afb84 | 672 | * The default worker choice strategy uses a round robin algorithm to distribute the tasks. |
280c2a77 | 673 | * |
20dcad1a | 674 | * @returns The worker node key |
280c2a77 | 675 | */ |
6c6afb84 | 676 | private chooseWorkerNode (): number { |
930dcf12 | 677 | if (this.shallCreateDynamicWorker()) { |
6c6afb84 JB |
678 | const worker = this.createAndSetupDynamicWorker() |
679 | if ( | |
680 | this.workerChoiceStrategyContext.getStrategyPolicy().useDynamicWorker | |
681 | ) { | |
682 | return this.getWorkerNodeKey(worker) | |
683 | } | |
17393ac8 | 684 | } |
930dcf12 JB |
685 | return this.workerChoiceStrategyContext.execute() |
686 | } | |
687 | ||
6c6afb84 JB |
688 | /** |
689 | * Conditions for dynamic worker creation. | |
690 | * | |
691 | * @returns Whether to create a dynamic worker or not. | |
692 | */ | |
693 | private shallCreateDynamicWorker (): boolean { | |
930dcf12 | 694 | return this.type === PoolTypes.dynamic && !this.full && this.internalBusy() |
c97c7edb S |
695 | } |
696 | ||
280c2a77 | 697 | /** |
675bb809 | 698 | * Sends a message to the given worker. |
280c2a77 | 699 | * |
38e795c1 JB |
700 | * @param worker - The worker which should receive the message. |
701 | * @param message - The message. | |
280c2a77 S |
702 | */ |
703 | protected abstract sendToWorker ( | |
704 | worker: Worker, | |
705 | message: MessageValue<Data> | |
706 | ): void | |
707 | ||
4a6952ff | 708 | /** |
f06e48d8 | 709 | * Registers a listener callback on the given worker. |
4a6952ff | 710 | * |
38e795c1 JB |
711 | * @param worker - The worker which should register a listener. |
712 | * @param listener - The message listener callback. | |
4a6952ff | 713 | */ |
e102732c JB |
714 | private registerWorkerMessageListener<Message extends Data | Response>( |
715 | worker: Worker, | |
716 | listener: (message: MessageValue<Message>) => void | |
717 | ): void { | |
718 | worker.on('message', listener as MessageHandler<Worker>) | |
719 | } | |
c97c7edb | 720 | |
729c563d | 721 | /** |
41344292 | 722 | * Creates a new worker. |
6c6afb84 JB |
723 | * |
724 | * @returns Newly created worker. | |
729c563d | 725 | */ |
280c2a77 | 726 | protected abstract createWorker (): Worker |
c97c7edb | 727 | |
729c563d | 728 | /** |
f06e48d8 | 729 | * Function that can be hooked up when a worker has been newly created and moved to the pool worker nodes. |
6677a3d3 | 730 | * Can be overridden. |
729c563d | 731 | * |
38e795c1 | 732 | * @param worker - The newly created worker. |
729c563d | 733 | */ |
6677a3d3 | 734 | protected afterWorkerSetup (worker: Worker): void { |
e102732c JB |
735 | // Listen to worker messages. |
736 | this.registerWorkerMessageListener(worker, this.workerListener()) | |
737 | } | |
c97c7edb | 738 | |
4a6952ff | 739 | /** |
f06e48d8 | 740 | * Creates a new worker and sets it up completely in the pool worker nodes. |
4a6952ff JB |
741 | * |
742 | * @returns New, completely set up worker. | |
743 | */ | |
744 | protected createAndSetupWorker (): Worker { | |
bdacc2d2 | 745 | const worker = this.createWorker() |
280c2a77 | 746 | |
35cf1c03 | 747 | worker.on('message', this.opts.messageHandler ?? EMPTY_FUNCTION) |
a35560ba | 748 | worker.on('error', this.opts.errorHandler ?? EMPTY_FUNCTION) |
1f68cede JB |
749 | worker.on('error', error => { |
750 | if (this.emitter != null) { | |
751 | this.emitter.emit(PoolEvents.error, error) | |
752 | } | |
5baee0d7 | 753 | if (this.opts.restartWorkerOnError === true) { |
1f68cede | 754 | this.createAndSetupWorker() |
5baee0d7 JB |
755 | } |
756 | }) | |
a35560ba S |
757 | worker.on('online', this.opts.onlineHandler ?? EMPTY_FUNCTION) |
758 | worker.on('exit', this.opts.exitHandler ?? EMPTY_FUNCTION) | |
a974afa6 | 759 | worker.once('exit', () => { |
f06e48d8 | 760 | this.removeWorkerNode(worker) |
a974afa6 | 761 | }) |
280c2a77 | 762 | |
f06e48d8 | 763 | this.pushWorkerNode(worker) |
280c2a77 | 764 | |
b6b32453 JB |
765 | this.setWorkerStatistics(worker) |
766 | ||
280c2a77 S |
767 | this.afterWorkerSetup(worker) |
768 | ||
c97c7edb S |
769 | return worker |
770 | } | |
be0676b3 | 771 | |
930dcf12 JB |
772 | /** |
773 | * Creates a new dynamic worker and sets it up completely in the pool worker nodes. | |
774 | * | |
775 | * @returns New, completely set up dynamic worker. | |
776 | */ | |
777 | protected createAndSetupDynamicWorker (): Worker { | |
778 | const worker = this.createAndSetupWorker() | |
779 | this.registerWorkerMessageListener(worker, message => { | |
e8b3a5ab | 780 | const workerNodeKey = this.getWorkerNodeKey(worker) |
930dcf12 JB |
781 | if ( |
782 | isKillBehavior(KillBehaviors.HARD, message.kill) || | |
7b56f532 JB |
783 | (message.kill != null && |
784 | ((this.opts.enableTasksQueue === false && | |
465b2940 | 785 | this.workerNodes[workerNodeKey].usage.tasks.executing === 0) || |
7b56f532 | 786 | (this.opts.enableTasksQueue === true && |
465b2940 | 787 | this.workerNodes[workerNodeKey].usage.tasks.executing === 0 && |
e8b3a5ab | 788 | this.tasksQueueSize(workerNodeKey) === 0))) |
930dcf12 JB |
789 | ) { |
790 | // Kill message received from the worker: no new tasks are submitted to that worker for a while ( > maxInactiveTime) | |
930dcf12 JB |
791 | void (this.destroyWorker(worker) as Promise<void>) |
792 | } | |
793 | }) | |
794 | return worker | |
795 | } | |
796 | ||
be0676b3 | 797 | /** |
ff733df7 | 798 | * This function is the listener registered for each worker message. |
be0676b3 | 799 | * |
bdacc2d2 | 800 | * @returns The listener function to execute when a message is received from a worker. |
be0676b3 APA |
801 | */ |
802 | protected workerListener (): (message: MessageValue<Response>) => void { | |
4a6952ff | 803 | return message => { |
b1989cfd | 804 | if (message.id != null) { |
a3445496 | 805 | // Task execution response received |
2740a743 | 806 | const promiseResponse = this.promiseResponseMap.get(message.id) |
b1989cfd | 807 | if (promiseResponse != null) { |
82f36766 | 808 | if (message.taskError != null) { |
91ee39ed | 809 | if (this.emitter != null) { |
82f36766 | 810 | this.emitter.emit(PoolEvents.taskError, message.taskError) |
91ee39ed | 811 | } |
cd9580e7 | 812 | promiseResponse.reject(message.taskError.message) |
a05c10de | 813 | } else { |
2740a743 | 814 | promiseResponse.resolve(message.data as Response) |
a05c10de | 815 | } |
2e81254d | 816 | this.afterTaskExecutionHook(promiseResponse.worker, message) |
2740a743 | 817 | this.promiseResponseMap.delete(message.id) |
ff733df7 JB |
818 | const workerNodeKey = this.getWorkerNodeKey(promiseResponse.worker) |
819 | if ( | |
820 | this.opts.enableTasksQueue === true && | |
416fd65c | 821 | this.tasksQueueSize(workerNodeKey) > 0 |
ff733df7 | 822 | ) { |
2e81254d JB |
823 | this.executeTask( |
824 | workerNodeKey, | |
ff733df7 JB |
825 | this.dequeueTask(workerNodeKey) as Task<Data> |
826 | ) | |
827 | } | |
e5536a06 | 828 | this.workerChoiceStrategyContext.update(workerNodeKey) |
be0676b3 APA |
829 | } |
830 | } | |
831 | } | |
be0676b3 | 832 | } |
7c0ba920 | 833 | |
ff733df7 | 834 | private checkAndEmitEvents (): void { |
1f68cede | 835 | if (this.emitter != null) { |
ff733df7 | 836 | if (this.busy) { |
6b27d407 | 837 | this.emitter?.emit(PoolEvents.busy, this.info) |
ff733df7 | 838 | } |
6b27d407 JB |
839 | if (this.type === PoolTypes.dynamic && this.full) { |
840 | this.emitter?.emit(PoolEvents.full, this.info) | |
ff733df7 | 841 | } |
164d950a JB |
842 | } |
843 | } | |
844 | ||
0ebe2a9f JB |
845 | /** |
846 | * Sets the given worker node its tasks usage in the pool. | |
847 | * | |
848 | * @param workerNode - The worker node. | |
a4e07f72 | 849 | * @param workerUsage - The worker usage. |
0ebe2a9f JB |
850 | */ |
851 | private setWorkerNodeTasksUsage ( | |
852 | workerNode: WorkerNode<Worker, Data>, | |
a4e07f72 | 853 | workerUsage: WorkerUsage |
0ebe2a9f | 854 | ): void { |
465b2940 | 855 | workerNode.usage = workerUsage |
0ebe2a9f JB |
856 | } |
857 | ||
a05c10de | 858 | /** |
f06e48d8 | 859 | * Pushes the given worker in the pool worker nodes. |
ea7a90d3 | 860 | * |
38e795c1 | 861 | * @param worker - The worker. |
f06e48d8 | 862 | * @returns The worker nodes length. |
ea7a90d3 | 863 | */ |
f06e48d8 | 864 | private pushWorkerNode (worker: Worker): number { |
9c16fb4b | 865 | this.workerNodes.push({ |
ffcbbad8 | 866 | worker, |
465b2940 | 867 | usage: this.getWorkerUsage(), |
29ee7e9a | 868 | tasksQueue: new Queue<Task<Data>>() |
ea7a90d3 | 869 | }) |
9c16fb4b JB |
870 | const workerNodeKey = this.getWorkerNodeKey(worker) |
871 | this.setWorkerNodeTasksUsage( | |
872 | this.workerNodes[workerNodeKey], | |
873 | this.getWorkerUsage(workerNodeKey) | |
874 | ) | |
875 | return this.workerNodes.length | |
ea7a90d3 | 876 | } |
c923ce56 | 877 | |
8604aaab JB |
878 | // /** |
879 | // * Sets the given worker in the pool worker nodes. | |
880 | // * | |
881 | // * @param workerNodeKey - The worker node key. | |
882 | // * @param worker - The worker. | |
883 | // * @param workerUsage - The worker usage. | |
884 | // * @param tasksQueue - The worker task queue. | |
885 | // */ | |
886 | // private setWorkerNode ( | |
887 | // workerNodeKey: number, | |
888 | // worker: Worker, | |
889 | // workerUsage: WorkerUsage, | |
890 | // tasksQueue: Queue<Task<Data>> | |
891 | // ): void { | |
892 | // this.workerNodes[workerNodeKey] = { | |
893 | // worker, | |
465b2940 | 894 | // usage: workerUsage, |
8604aaab JB |
895 | // tasksQueue |
896 | // } | |
897 | // } | |
51fe3d3c JB |
898 | |
899 | /** | |
f06e48d8 | 900 | * Removes the given worker from the pool worker nodes. |
51fe3d3c | 901 | * |
f06e48d8 | 902 | * @param worker - The worker. |
51fe3d3c | 903 | */ |
416fd65c | 904 | private removeWorkerNode (worker: Worker): void { |
f06e48d8 | 905 | const workerNodeKey = this.getWorkerNodeKey(worker) |
1f68cede JB |
906 | if (workerNodeKey !== -1) { |
907 | this.workerNodes.splice(workerNodeKey, 1) | |
908 | this.workerChoiceStrategyContext.remove(workerNodeKey) | |
909 | } | |
51fe3d3c | 910 | } |
adc3c320 | 911 | |
2e81254d | 912 | private executeTask (workerNodeKey: number, task: Task<Data>): void { |
1c6fe997 | 913 | this.beforeTaskExecutionHook(workerNodeKey, task) |
2e81254d JB |
914 | this.sendToWorker(this.workerNodes[workerNodeKey].worker, task) |
915 | } | |
916 | ||
f9f00b5f | 917 | private enqueueTask (workerNodeKey: number, task: Task<Data>): number { |
29ee7e9a | 918 | return this.workerNodes[workerNodeKey].tasksQueue.enqueue(task) |
adc3c320 JB |
919 | } |
920 | ||
416fd65c | 921 | private dequeueTask (workerNodeKey: number): Task<Data> | undefined { |
29ee7e9a | 922 | return this.workerNodes[workerNodeKey].tasksQueue.dequeue() |
adc3c320 JB |
923 | } |
924 | ||
416fd65c | 925 | private tasksQueueSize (workerNodeKey: number): number { |
4d8bf9e4 | 926 | return this.workerNodes[workerNodeKey].tasksQueue.size |
adc3c320 | 927 | } |
ff733df7 | 928 | |
df593701 JB |
929 | private tasksMaxQueueSize (workerNodeKey: number): number { |
930 | return this.workerNodes[workerNodeKey].tasksQueue.maxSize | |
931 | } | |
932 | ||
416fd65c JB |
933 | private flushTasksQueue (workerNodeKey: number): void { |
934 | if (this.tasksQueueSize(workerNodeKey) > 0) { | |
29ee7e9a JB |
935 | for (let i = 0; i < this.tasksQueueSize(workerNodeKey); i++) { |
936 | this.executeTask( | |
937 | workerNodeKey, | |
938 | this.dequeueTask(workerNodeKey) as Task<Data> | |
939 | ) | |
ff733df7 | 940 | } |
ff733df7 | 941 | } |
df593701 | 942 | this.workerNodes[workerNodeKey].tasksQueue.clear() |
ff733df7 JB |
943 | } |
944 | ||
ef41a6e6 JB |
945 | private flushTasksQueues (): void { |
946 | for (const [workerNodeKey] of this.workerNodes.entries()) { | |
947 | this.flushTasksQueue(workerNodeKey) | |
948 | } | |
949 | } | |
b6b32453 JB |
950 | |
951 | private setWorkerStatistics (worker: Worker): void { | |
952 | this.sendToWorker(worker, { | |
953 | statistics: { | |
87de9ff5 JB |
954 | runTime: |
955 | this.workerChoiceStrategyContext.getTaskStatisticsRequirements() | |
932fc8be | 956 | .runTime.aggregate, |
87de9ff5 | 957 | elu: this.workerChoiceStrategyContext.getTaskStatisticsRequirements() |
5df69fab | 958 | .elu.aggregate |
b6b32453 JB |
959 | } |
960 | }) | |
961 | } | |
8604aaab | 962 | |
9c16fb4b | 963 | private getWorkerUsage (workerNodeKey?: number): WorkerUsage { |
e3347a5c JB |
964 | const getTasksQueueSize = (workerNodeKey?: number): number => { |
965 | return workerNodeKey != null ? this.tasksQueueSize(workerNodeKey) : 0 | |
9c16fb4b | 966 | } |
df593701 JB |
967 | const getTasksMaxQueueSize = (workerNodeKey?: number): number => { |
968 | return workerNodeKey != null ? this.tasksMaxQueueSize(workerNodeKey) : 0 | |
969 | } | |
8604aaab | 970 | return { |
9c16fb4b JB |
971 | tasks: { |
972 | executed: 0, | |
973 | executing: 0, | |
974 | get queued (): number { | |
e3347a5c | 975 | return getTasksQueueSize(workerNodeKey) |
9c16fb4b | 976 | }, |
df593701 JB |
977 | get maxQueued (): number { |
978 | return getTasksMaxQueueSize(workerNodeKey) | |
979 | }, | |
9c16fb4b JB |
980 | failed: 0 |
981 | }, | |
8604aaab | 982 | runTime: { |
932fc8be | 983 | aggregate: 0, |
8604aaab JB |
984 | average: 0, |
985 | median: 0, | |
986 | history: new CircularArray() | |
987 | }, | |
988 | waitTime: { | |
932fc8be | 989 | aggregate: 0, |
8604aaab JB |
990 | average: 0, |
991 | median: 0, | |
992 | history: new CircularArray() | |
993 | }, | |
5df69fab JB |
994 | elu: { |
995 | idle: { | |
996 | aggregate: 0, | |
997 | average: 0, | |
998 | median: 0, | |
999 | history: new CircularArray() | |
1000 | }, | |
1001 | active: { | |
1002 | aggregate: 0, | |
1003 | average: 0, | |
1004 | median: 0, | |
1005 | history: new CircularArray() | |
1006 | }, | |
1007 | utilization: 0 | |
1008 | } | |
8604aaab JB |
1009 | } |
1010 | } | |
c97c7edb | 1011 | } |