fix: refine pool statuses handling

[poolifier.git] / src / pools / selection-strategies / interleaved-weighted-round-robin-worker-choice-strategy.ts

diff --git a/src/pools/selection-strategies/interleaved-weighted-round-robin-worker-choice-strategy.ts b/src/pools/selection-strategies/interleaved-weighted-round-robin-worker-choice-strategy.ts
index 2e82ac3d9caaaf0146ba9f3f8e9b6f45df1089da..b11f0a177aa44925d510b697e48b578fe14169b4 100644 (file)
--- a/src/pools/selection-strategies/interleaved-weighted-round-robin-worker-choice-strategy.ts
+++ b/src/pools/selection-strategies/interleaved-weighted-round-robin-worker-choice-strategy.ts
@@ -1,14 +1,11 @@
 import type { IWorker } from '../worker'
 import type { IPool } from '../pool'
-import {
-  DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
-  DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
-} from '../../utils'
+import { DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS } from '../../utils'
 import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
 import type {
   IWorkerChoiceStrategy,
-  TaskStatisticsRequirements,
-  WorkerChoiceStrategyOptions
+  InternalWorkerChoiceStrategyOptions,
+  TaskStatisticsRequirements
 } from './selection-strategies-types'
 
 /**
@@ -40,10 +37,6 @@ export class InterleavedWeightedRoundRobinWorkerChoiceStrategy<
    * Round id.
    */
   private roundId: number = 0
-  /**
-   * Default worker weight.
-   */
-  private readonly defaultWorkerWeight: number
   /**
    * Round weights.
    */
@@ -53,18 +46,17 @@ export class InterleavedWeightedRoundRobinWorkerChoiceStrategy<
    */
   private workerNodeId: number = 0
   /**
-   * Worker virtual task runtime.
+   * Worker node virtual task runtime.
    */
-  private workerVirtualTaskRunTime: number = 0
+  private workerNodeVirtualTaskRunTime: number = 0
 
   /** @inheritDoc */
   public constructor (
     pool: IPool<Worker, Data, Response>,
-    opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
+    opts: InternalWorkerChoiceStrategyOptions
   ) {
     super(pool, opts)
     this.setTaskStatisticsRequirements(this.opts)
-    this.defaultWorkerWeight = this.computeDefaultWorkerWeight()
     this.roundWeights = this.getRoundWeights()
   }
 
@@ -73,7 +65,7 @@ export class InterleavedWeightedRoundRobinWorkerChoiceStrategy<
     this.resetWorkerNodeKeyProperties()
     this.roundId = 0
     this.workerNodeId = 0
-    this.workerVirtualTaskRunTime = 0
+    this.workerNodeVirtualTaskRunTime = 0
     return true
   }
 
@@ -98,21 +90,20 @@ export class InterleavedWeightedRoundRobinWorkerChoiceStrategy<
         this.workerNodeId = workerNodeKey
         if (
           this.workerNodeId !== this.nextWorkerNodeKey &&
-          this.workerVirtualTaskRunTime !== 0
+          this.workerNodeVirtualTaskRunTime !== 0
         ) {
-          this.workerVirtualTaskRunTime = 0
+          this.workerNodeVirtualTaskRunTime = 0
         }
-        const workerWeight =
-          this.opts.weights?.[workerNodeKey] ?? this.defaultWorkerWeight
+        const workerWeight = this.opts.weights?.[workerNodeKey] as number
         if (
+          this.isWorkerNodeReady(workerNodeKey) &&
           workerWeight >= this.roundWeights[roundIndex] &&
-          this.workerVirtualTaskRunTime < workerWeight
+          this.workerNodeVirtualTaskRunTime < workerWeight
         ) {
-          this.workerVirtualTaskRunTime =
-            this.workerVirtualTaskRunTime +
-            this.getWorkerTaskRunTime(workerNodeKey)
-          this.previousWorkerNodeKey =
-            this.nextWorkerNodeKey ?? this.previousWorkerNodeKey
+          this.workerNodeVirtualTaskRunTime =
+            this.workerNodeVirtualTaskRunTime +
+            this.getWorkerNodeTaskRunTime(workerNodeKey)
+          this.setPreviousWorkerNodeKey(this.nextWorkerNodeKey)
           this.nextWorkerNodeKey = workerNodeKey
           return this.nextWorkerNodeKey
         }
@@ -138,35 +129,34 @@ export class InterleavedWeightedRoundRobinWorkerChoiceStrategy<
 
   /** @inheritDoc */
   public remove (workerNodeKey: number): boolean {
-    if (this.nextWorkerNodeKey === workerNodeKey) {
-      if (this.pool.workerNodes.length === 0) {
-        this.roundId = 0
-        this.workerNodeId = 0
-        this.nextWorkerNodeKey = 0
-      } else if (this.nextWorkerNodeKey > this.pool.workerNodes.length - 1) {
-        if (this.workerNodeId === this.nextWorkerNodeKey) {
-          this.workerNodeId = this.pool.workerNodes.length - 1
-        }
-        this.nextWorkerNodeKey = this.pool.workerNodes.length - 1
-      }
-      this.workerVirtualTaskRunTime = 0
+    if (this.pool.workerNodes.length === 0) {
+      this.reset()
+    }
+    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: InternalWorkerChoiceStrategyOptions): 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)
+        Object.values(this.opts.weights as Record<number, number>)
           .slice()
           .sort((a, b) => a - b)
       )