-import type { IWorker } from '../worker'
-import type { IPool } from '../pool'
-import {
- DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
- DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
-} from '../../utils'
-import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
+import type { IPool } from '../pool.js'
+import { DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS } from '../utils.js'
+import type { IWorker } from '../worker.js'
+import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy.js'
import type {
IWorkerChoiceStrategy,
TaskStatisticsRequirements,
- WorkerChoiceStrategyOptions
-} from './selection-strategies-types'
+ WorkerChoiceStrategyOptions,
+} from './selection-strategies-types.js'
/**
* Selects the next worker with an interleaved weighted round robin scheduling algorithm.
- *
* @typeParam Worker - Type of worker which manages the strategy.
* @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data.
* @typeParam Response - Type of execution response. This can only be structured-cloneable data.
runTime: {
aggregate: true,
average: true,
- median: false
+ median: false,
},
- waitTime: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
- elu: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS
+ waitTime: {
+ aggregate: true,
+ average: true,
+ median: false,
+ },
+ elu: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
}
/**
* Round id.
*/
- private roundId: number = 0
- /**
- * Default worker weight.
- */
- private readonly defaultWorkerWeight: number
+ private roundId = 0
/**
* Round weights.
*/
/**
* Worker node id.
*/
- private workerNodeId: number = 0
+ private workerNodeId = 0
/**
- * Worker virtual task runtime.
+ * Worker node virtual execution time.
*/
- private workerVirtualTaskRunTime: number = 0
+ private workerNodeVirtualTaskExecutionTime = 0
/** @inheritDoc */
public constructor (
pool: IPool<Worker, Data, Response>,
- opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
+ opts?: WorkerChoiceStrategyOptions
) {
super(pool, opts)
this.setTaskStatisticsRequirements(this.opts)
- this.defaultWorkerWeight = this.computeDefaultWorkerWeight()
this.roundWeights = this.getRoundWeights()
}
this.resetWorkerNodeKeyProperties()
this.roundId = 0
this.workerNodeId = 0
- this.workerVirtualTaskRunTime = 0
+ this.workerNodeVirtualTaskExecutionTime = 0
return true
}
workerNodeKey++
) {
this.workerNodeId = workerNodeKey
- if (!this.isWorkerNodeEligible(workerNodeKey)) {
- continue
- }
if (
this.workerNodeId !== this.nextWorkerNodeKey &&
- this.workerVirtualTaskRunTime !== 0
+ this.workerNodeVirtualTaskExecutionTime !== 0
) {
- this.workerVirtualTaskRunTime = 0
+ this.workerNodeVirtualTaskExecutionTime = 0
}
- const workerWeight =
- this.opts.weights?.[workerNodeKey] ?? this.defaultWorkerWeight
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ const workerWeight = this.opts!.weights![workerNodeKey]
if (
+ this.isWorkerNodeReady(workerNodeKey) &&
workerWeight >= this.roundWeights[roundIndex] &&
- this.workerVirtualTaskRunTime < workerWeight
+ this.workerNodeVirtualTaskExecutionTime < workerWeight
) {
- this.workerVirtualTaskRunTime =
- this.workerVirtualTaskRunTime +
- this.getWorkerTaskRunTime(workerNodeKey)
- this.previousWorkerNodeKey =
- this.nextWorkerNodeKey ?? this.previousWorkerNodeKey
+ this.workerNodeVirtualTaskExecutionTime +=
+ this.getWorkerNodeTaskWaitTime(workerNodeKey) +
+ this.getWorkerNodeTaskRunTime(workerNodeKey)
+ this.setPreviousWorkerNodeKey(this.nextWorkerNodeKey)
this.nextWorkerNodeKey = workerNodeKey
return this.nextWorkerNodeKey
}
}
private interleavedWeightedRoundRobinNextWorkerNodeId (): void {
- if (
+ if (this.pool.workerNodes.length === 0) {
+ this.workerNodeId = 0
+ } else if (
this.roundId === this.roundWeights.length - 1 &&
this.workerNodeId === this.pool.workerNodes.length - 1
) {
/** @inheritDoc */
public remove (workerNodeKey: number): boolean {
- if (this.nextWorkerNodeKey === workerNodeKey) {
- if (this.pool.workerNodes.length === 0) {
- this.nextWorkerNodeKey = 0
- } else if (this.nextWorkerNodeKey > this.pool.workerNodes.length - 1) {
- this.roundId =
- this.roundId === this.roundWeights.length - 1 ? 0 : this.roundId + 1
- this.nextWorkerNodeKey = this.pool.workerNodes.length - 1
- }
- this.workerVirtualTaskRunTime = 0
+ if (this.pool.workerNodes.length === 0) {
+ this.resetWorkerNodeKeyProperties()
+ this.workerNodeId = 0
+ this.workerNodeVirtualTaskExecutionTime = 0
+ return true
+ }
+ if (
+ this.workerNodeId === workerNodeKey &&
+ this.workerNodeId > this.pool.workerNodes.length - 1
+ ) {
+ this.workerNodeId = this.pool.workerNodes.length - 1
+ }
+ if (
+ this.previousWorkerNodeKey === workerNodeKey &&
+ this.previousWorkerNodeKey > this.pool.workerNodes.length - 1
+ ) {
+ this.previousWorkerNodeKey = this.pool.workerNodes.length - 1
}
return true
}
/** @inheritDoc */
- public setOptions (opts: WorkerChoiceStrategyOptions): void {
+ public setOptions (opts: WorkerChoiceStrategyOptions | undefined): void {
super.setOptions(opts)
this.roundWeights = this.getRoundWeights()
}
private getRoundWeights (): number[] {
- if (this.opts.weights == null) {
- return [this.defaultWorkerWeight]
- }
return [
...new Set(
- Object.values(this.opts.weights)
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ Object.values(this.opts!.weights!)
.slice()
.sort((a, b) => a - b)
- )
+ ),
]
}
}