CHANGELOG.md

   1 # Changelog
   2
   3 All notable changes to this project will be documented in this file.
   4
   5 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
   6 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
   7
   8 ## [Unreleased]
   9
  10 ## [2.7.5] - 2023-10-03
  11
  12 ### Changed
  13
  14 - Use `EventEmitterAsyncResource` type from `@types/node` for pool event emitter. TypeScript users will need to update to latest `@types/node` version.
  15
  16 ## [2.7.4] - 2023-09-25
  17
  18 ### Fixed
  19
  20 - Fix source maps (bundler issue).
  21
  22 ## [2.7.3] - 2023-09-24
  23
  24 ### Changed
  25
  26 - Convert pool event emitter to event emitter async resource.
  27
  28 ## [2.7.2] - 2023-09-23
  29
  30 ### Changed
  31
  32 - Add source maps to npm package to ease debugging.
  33
  34 ### Added
  35
  36 - Continuous benchmarking versus other worker pools: [https://poolifier.github.io/benchmark](https://poolifier.github.io/benchmark).
  37
  38 ## [2.7.1] - 2023-09-20
  39
  40 ### Fixed
  41
  42 - Ensure worker message listener used one time are removed after usage.
  43
  44 ## [2.7.0] - 2023-09-19
  45
  46 ### Fixed
  47
  48 - Fix task stealing related tasks queue options handling at runtime.
  49
  50 ### Changed
  51
  52 - Rename `listTaskFunctions()` to `listTaskFunctionNames()` in pool and worker API.
  53
  54 ### Added
  55
  56 - Add `hasTaskFunction()`, `addTaskFunction()`, `removeTaskFunction()`, `setDefaultTaskFunction()` methods to pool API: [PR #1148](https://github.com/poolifier/poolifier/pull/1148).
  57 - Stricter worker constructor arguments validation.
  58
  59 ## [2.6.45] - 2023-09-17
  60
  61 ### Changed
  62
  63 - Disable publication on GitHub packages registry on release until authentication issue is fixed.
  64
  65 ### Added
  66
  67 - Add `startWorkers` to pool options to whether start the minimum number of workers at pool initialization or not.
  68 - Add `start()` method to pool API to start the minimum number of workers.
  69 - Add `taskStealing` and `tasksStealingOnPressure` to tasks queue options to whether enable task stealing or not and whether enable tasks stealing under back pressure or not.
  70 - Continuous internal benchmarking: [https://poolifier.github.io/benchmark-results/dev/bench](https://poolifier.github.io/benchmark-results/dev/bench).
  71
  72 ## [2.6.44] - 2023-09-08
  73
  74 ### Fixed
  75
  76 - Use a dedicated PAT to publish on GitHub packages registry.
  77
  78 ### Added
  79
  80 - Publish on GitHub packages registry on release.
  81
  82 ### Changed
  83
  84 - Switch from rome to biome: [PR #1128](https://github.com/poolifier/poolifier/pull/1128).
  85
  86 ## [2.6.43] - 2023-09-08
  87
  88 ### Added
  89
  90 - Publish on GitHub packages registry on release.
  91
  92 ### Changed
  93
  94 - Switch from rome to biome: [PR #1128](https://github.com/poolifier/poolifier/pull/1128).
  95
  96 ## [2.6.42] - 2023-09-06
  97
  98 ### Changed
  99
 100 - Optimize hot code paths implementation: avoid unnecessary branching, add and use optimized helpers (min, max), use reduce() array helper, ...
 101
 102 ## [2.6.41] - 2023-09-03
 103
 104 ### Changed
 105
 106 - Optimize worker choice strategies implementation.
 107
 108 ## [2.6.40] - 2023-09-01
 109
 110 ### Fixed
 111
 112 - Do not pre-choose in WRR worker choice strategy to avoid bias.
 113 - Avoid array out of bound in worker choice strategies after worker node removal.
 114
 115 ## [2.6.39] - 2023-08-30
 116
 117 ### Fixed
 118
 119 - Fix race condition in worker choice strategies at worker node info querying while not yet initialized.
 120
 121 ## [2.6.38] - 2023-08-30
 122
 123 ### Added
 124
 125 - Bundle typescript types declaration into one file.
 126
 127 ### Changed
 128
 129 - Improve interleaved weighted round robin worker choice strategy implementation.
 130
 131 ## [2.6.37] - 2023-08-28
 132
 133 ### Fixed
 134
 135 - Ensure unused worker usage statistics are deleted at runtime.
 136
 137 ### Changed
 138
 139 - Rename worker choice strategy options `choiceRetries` to `retries`.
 140 - Avoid unnecessary branching in worker choice strategies.
 141
 142 ## [2.6.36] - 2023-08-27
 143
 144 ### Fixed
 145
 146 - Fix pool `execute()` arguments check.
 147
 148 ### Changed
 149
 150 - Make continuous tasks stealing algorithm less aggressive.
 151 - Fine tune tasks stealing algorithm under back pressure.
 152
 153 ## [2.6.35] - 2023-08-25
 154
 155 ### Fixed
 156
 157 - Don't account worker usage statistics for tasks that have failed.
 158 - Fix pool information runtime and wait time median computation.
 159
 160 ### Changed
 161
 162 - Update simple moving average implementation to use a circular buffer.
 163 - Update simple moving median implementation to use a circular buffer.
 164 - Account for stolen tasks in worker usage statistics and pool information.
 165
 166 ### Added
 167
 168 - Continuous tasks stealing algorithm.
 169
 170 ## [2.6.34] - 2023-08-24
 171
 172 ### Fixes
 173
 174 - Avoid cascading tasks stealing under back pressure.
 175
 176 ### Changed
 177
 178 - Add fastpath to queued tasks rescheduling.
 179
 180 ## [2.6.33] - 2023-08-24
 181
 182 ### Fixed
 183
 184 - Fix queued tasks rescheduling.
 185
 186 ### Changed
 187
 188 - Rename tasks queue options `queueMaxSize` to `size`.
 189
 190 ### Added
 191
 192 - Task stealing scheduling algorithm if tasks queueing is enabled.
 193
 194 ## [2.6.32] - 2023-08-23
 195
 196 ### Fixed
 197
 198 - Ensure no task can be executed when the pool is destroyed.
 199
 200 ### Added
 201
 202 - Add `queueMaxSize` option to tasks queue options.
 203 - Add O(1) deque implementation implemented with doubly linked list and use it for tasks queueing.
 204 - Add tasks stealing algorithm when a worker node queue is back pressured if tasks queueing is enabled.
 205
 206 ## [2.6.31] - 2023-08-20
 207
 208 ### Fixed
 209
 210 - Fix worker choice strategy retries mechanism in some edge cases.
 211
 212 ### Changed
 213
 214 - Make orthogonal worker choice strategies tasks distribution and created dynamic worker usage.
 215 - Remove the experimental status of the `LEAST_ELU` worker choice strategy.
 216
 217 ## [2.6.30] - 2023-08-19
 218
 219 ### Fixed
 220
 221 - Ensure pool event `backPressure` is emitted.
 222 - Ensure pool event `full` is emitted only once.
 223 - Ensure worker node cannot be instantiated without proper arguments.
 224
 225 ## [2.6.29] - 2023-08-18
 226
 227 ### Fixed
 228
 229 - Fix race condition between ready and task functions worker message handling at startup.
 230 - Fix duplicate task function worker usage statistics computation per task function.
 231 - Update task function worker usage statistics if and only if there's at least two different task functions.
 232 - Fix race condition at task function worker usage executing task computation leading to negative value.
 233
 234 ### Added
 235
 236 - Add back pressure detection on the worker node queue. Event `backPressure` is emitted when all worker node queues are full (worker node queue size >= poolMaxSize^2).
 237 - Use back pressure detection in worker choice strategies.
 238 - Add worker choice strategies retries mechanism if no worker is eligible.
 239
 240 ## [2.6.28] - 2023-08-16
 241
 242 ### Fixed
 243
 244 - Ensure pool workers are properly initialized.
 245
 246 ### Added
 247
 248 - HTTP server pool examples: express-cluster, express-hybrid.
 249
 250 ### Changed
 251
 252 - Remove now useless branching in worker hot code path.
 253
 254 ## [2.6.27] - 2023-08-15
 255
 256 ### Fixed
 257
 258 - Add `KillHandler` type definition to exported types.
 259
 260 ### Added
 261
 262 - Add `destroy` event to pool API.
 263
 264 ## [2.6.26] - 2023-08-15
 265
 266 ### Added
 267
 268 - Add kill handler to worker options allowing to execute custom code when worker is killed.
 269 - Add `listTaskFunctions()` method to pool API.
 270 - SMTP client pool example: nodemailer.
 271
 272 ## [2.6.25] - 2023-08-13
 273
 274 ### Added
 275
 276 - HTTP server pool examples: fastify-cluster, fastify-hybrid.
 277 - WebSocket server pool examples: ws-cluster, ws-hybrid.
 278
 279 ## [2.6.24] - 2023-08-12
 280
 281 ### Added
 282
 283 - Add array of transferable objects to the `execute()` method arguments.
 284 - WebSocket server pool examples: ws-worker_threads.
 285
 286 ## [2.6.23] - 2023-08-11
 287
 288 ### Fixed
 289
 290 - Fix pool busyness semantic when tasks queueing is enabled: the pool is busy when the number of executing tasks on each worker has reached the maximum tasks concurrency per worker.
 291
 292 ### Added
 293
 294 - HTTP client pool examples: fetch, node-fetch and axios with multiple task functions.
 295 - HTTP server pool examples: express-worker_threads, fastify-worker_threads.
 296
 297 ## [2.6.22] - 2023-08-10
 298
 299 ### Fixed
 300
 301 - Add missing `types` field to package.json `exports`.
 302
 303 ### Changed
 304
 305 - Structure markdown documentation (PR #811).
 306
 307 ## [2.6.21] - 2023-08-03
 308
 309 ### Changed
 310
 311 - Improve code documentation.
 312 - Code refactoring and cleanup for better maintainability and readability.
 313
 314 ## [2.6.20] - 2023-07-21
 315
 316 ### Fixed
 317
 318 - Fix queued tasks redistribution on error task execution starvation.
 319 - Ensure tasks queueing per worker condition is untangled from the pool busyness semantic.
 320
 321 ### Changed
 322
 323 - Drastically reduce lookups by worker in the worker nodes.
 324
 325 ## [2.6.19] - 2023-07-20
 326
 327 ### Added
 328
 329 - Dedicated internal communication channel for worker_threads pools.
 330
 331 ## [2.6.18] - 2023-07-19
 332
 333 ### Changed
 334
 335 - Code refactoring and cleanup for better maintainability and readability. Bundle size is a bit smaller.
 336
 337 ## [2.6.17] - 2023-07-16
 338
 339 ### Added
 340
 341 - Add `listTaskFunctions()` method to worker API.
 342
 343 ## [2.6.16] - 2023-07-12
 344
 345 ### Fixed
 346
 347 - Fix pool startup detection.
 348 - Fix worker task functions handling.
 349
 350 ## [2.6.15] - 2023-07-11
 351
 352 ### Added
 353
 354 - Take into account worker node readiness in worker choice strategies.
 355
 356 ## [2.6.14] - 2023-07-10
 357
 358 ### Fixed
 359
 360 - Fix task function statistics tracking.
 361
 362 ## [2.6.13] - 2023-07-10
 363
 364 ### Added
 365
 366 - Add per task function statistics tracking.
 367 - Add public methods to manipulate the worker task functions at runtime.
 368
 369 ## [2.6.12] - 2023-07-09
 370
 371 ### Fixed
 372
 373 - Workaround import issue with `node:os` module in node 16.x.x.
 374
 375 ## [2.6.11] - 2023-07-09
 376
 377 ### Fixed
 378
 379 - Fix pool readiness semantic.
 380
 381 ## [2.6.10] - 2023-07-08
 382
 383 ### Fixed
 384
 385 - Ensure workers are not recreated on error at pool startup.
 386
 387 ### Added
 388
 389 - Add `ready` and `strategy` fields to pool information.
 390 - Add pool event `ready` to notify when the number of workers created in the pool has reached the maximum size expected and are ready.
 391 - Add dynamic pool sizing checks.
 392
 393 ## [2.6.9] - 2023-07-07
 394
 395 ### Fixed
 396
 397 - Recreate the right worker type on uncaught exception.
 398
 399 ### Added
 400
 401 - Add minimum and maximum to internal measurement statistics.
 402 - Add `runTime` and `waitTime` to pool information.
 403 - Check worker inactive time only on dynamic worker.
 404
 405 ## [2.6.8] - 2023-07-03
 406
 407 ### Fixed
 408
 409 - Brown paper bag release to fix version handling in pool information.
 410
 411 ## [2.6.7] - 2023-07-03
 412
 413 ### Fixed
 414
 415 - Ensure worker queued tasks at error are reassigned to other pool workers.
 416
 417 ### Added
 418
 419 - Add pool `utilization` ratio to pool information.
 420 - Add `version` to pool information.
 421 - Add worker information to worker nodes.
 422
 423 ## [2.6.6] - 2023-07-01
 424
 425 ### Added
 426
 427 - Add safe helper `availableParallelism()` to help sizing the pool.
 428
 429 ### Fixed
 430
 431 - Ensure message handler is only registered in worker.
 432
 433 ## [2.6.5] - 2023-06-27
 434
 435 ### Known issues
 436
 437 - Cluster pools tasks execution are not working by using ESM files extension: https://github.com/poolifier/poolifier/issues/782
 438
 439 ### Fixed
 440
 441 - Artificial version bump to 2.6.5 to workaround publication issue.
 442 - Ensure cluster pool `destroy()` gracefully shutdowns worker's server.
 443 - Ensure pool event is emitted before task error promise rejection.
 444 - Fix queued tasks count computation.
 445
 446 ### Removed
 447
 448 - Remove unneeded worker_threads worker `MessageChannel` internal usage for IPC.
 449
 450 ## [2.6.4] - 2023-06-27
 451
 452 ### Known issues
 453
 454 - Cluster pools tasks execution are not working by using ESM files extension: https://github.com/poolifier/poolifier/issues/782
 455
 456 ### Fixed
 457
 458 - Ensure cluster pool `destroy()` gracefully shutdowns worker's server.
 459 - Ensure pool event is emitted before task error promise rejection.
 460 - Fix queued tasks count computation.
 461
 462 ### Removed
 463
 464 - Remove unneeded worker_threads worker `MessageChannel` internal usage for IPC.
 465
 466 ## [2.6.3] - 2023-06-19
 467
 468 ### Fixed
 469
 470 - Ensure no tasks are queued when trying to soft kill a dynamic worker.
 471 - Update strategies internals after statistics computation.
 472
 473 ### Changed
 474
 475 - Optimize O(1) queue implementation.
 476
 477 ## [2.6.2] - 2023-06-12
 478
 479 ### Fixed
 480
 481 - Fix new worker use after creation in dynamic pool given the current worker choice strategy.
 482
 483 ## [2.6.1] - 2023-06-10
 484
 485 ### Added
 486
 487 - Add worker choice strategy documentation: [README.md](./docs/worker-choice-strategies.md).
 488
 489 ### Fixed
 490
 491 - Fix average statistics computation: ensure failed tasks are not accounted.
 492
 493 ## [2.6.0] - 2023-06-09
 494
 495 ### Added
 496
 497 - Add `LEAST_ELU` worker choice strategy (experimental).
 498 - Add tasks ELU instead of runtime support to `FAIR_SHARE` worker choice strategy.
 499
 500 ### Changed
 501
 502 - Refactor pool worker node usage internals.
 503 - Breaking change: refactor worker choice strategy statistics requirements: the syntax of the worker choice strategy options has changed.
 504 - Breaking change: pool information `info` property object fields have been renamed.
 505
 506 ### Fixed
 507
 508 - Fix wait time accounting.
 509 - Ensure worker choice strategy `LEAST_BUSY` accounts also tasks wait time.
 510 - Ensure worker choice strategy `LEAST_USED` accounts also queued tasks.
 511
 512 ## [2.5.4] - 2023-06-07
 513
 514 ### Added
 515
 516 - Add Event Loop Utilization (ELU) statistics to worker tasks usage.
 517
 518 ### Changed
 519
 520 - Compute statistics at the worker level only if needed.
 521 - Add `worker_threads` options to thread pool options.
 522
 523 ### Fixed
 524
 525 - Make the `LEAST_BUSY` strategy only relies on task runtime.
 526
 527 ## [2.5.3] - 2023-06-04
 528
 529 ### Changed
 530
 531 - Refine pool information content.
 532 - Limit pool internals public exposure.
 533
 534 ## [2.5.2] - 2023-06-02
 535
 536 ### Added
 537
 538 - Add `taskError` pool event for task execution error.
 539 - Add pool information `info` property to pool.
 540 - Emit pool information on `busy` and `full` pool events.
 541
 542 ## [2.5.1] - 2023-06-01
 543
 544 ### Added
 545
 546 - Add pool option `restartWorkerOnError` to restart worker on uncaught error. Default to `true`.
 547 - Add `error` pool event for uncaught worker error.
 548
 549 ## [2.5.0] - 2023-05-31
 550
 551 ### Added
 552
 553 - Switch pool event emitter to `EventEmitterAsyncResource`.
 554 - Add tasks wait time accounting in per worker tasks usage.
 555 - Add interleaved weighted round robin `INTERLEAVED_WEIGHTED_ROUND_ROBIN` worker choice strategy (experimental).
 556
 557 ### Changed
 558
 559 - Renamed worker choice strategy `LESS_BUSY` to `LEAST_BUSY` and `LESS_USED` to `LEAST_USED`.
 560
 561 ## [2.4.14] - 2023-05-09
 562
 563 ### Fixed
 564
 565 - Ensure no undefined task runtime can land in the tasks history.
 566 - Fix median computation implementation once again.
 567
 568 ### Added
 569
 570 - Unit tests for median and queue implementations.
 571
 572 ## [2.4.13] - 2023-05-08
 573
 574 ### Fixed
 575
 576 - Fix worker choice strategy options validation.
 577 - Fix fair share worker choice strategy internals update: ensure virtual task end timestamp is computed at task submission.
 578
 579 ## [2.4.12] - 2023-05-06
 580
 581 ### Added
 582
 583 - Support multiple task functions per worker.
 584 - Add custom worker weights support to worker choice strategies options.
 585
 586 ### Changed
 587
 588 - Use O(1) queue implementation for tasks queueing.
 589
 590 ### Fixed
 591
 592 - Fix median computation implementation.
 593 - Fix fair share worker choice strategy internals update.
 594
 595 ## [2.4.11] - 2023-04-23
 596
 597 ### Changed
 598
 599 - Optimize free worker finding in worker choice strategies.
 600
 601 ## [2.4.10] - 2023-04-15
 602
 603 ### Fixed
 604
 605 - Fix typescript type definition for task function: ensure the input data is optional.
 606 - Fix typescript type definition for pool execute(): ensure the input data is optional.
 607
 608 ## [2.4.9] - 2023-04-15
 609
 610 ### Added
 611
 612 - Add tasks queue enablement runtime setter to pool.
 613 - Add tasks queue options runtime setter to pool.
 614 - Add worker choice strategy options runtime setter to pool.
 615
 616 ### Changed
 617
 618 - Remove the tasks queuing experimental status.
 619
 620 ### Fixed
 621
 622 - Fix task function type definition and validation.
 623 - Fix worker choice strategy options handling.
 624
 625 ## [2.4.8] - 2023-04-12
 626
 627 ### Fixed
 628
 629 - Fix message between main worker and worker type definition for tasks.
 630 - Fix code documentation.
 631
 632 ## [2.4.7] - 2023-04-11
 633
 634 ### Added
 635
 636 - Add worker tasks queue options to pool options.
 637
 638 ### Fixed
 639
 640 - Fix missing documentation.
 641
 642 ## [2.4.6] - 2023-04-10
 643
 644 ### Fixed
 645
 646 - Ensure one task at a time is executed per worker with tasks queueing enabled.
 647 - Properly count worker executing tasks with tasks queueing enabled.
 648
 649 ## [2.4.5] - 2023-04-09
 650
 651 ### Added
 652
 653 - Use monotonic high resolution timer for worker tasks runtime.
 654 - Add worker tasks median runtime to statistics.
 655 - Add worker tasks queue (experimental).
 656
 657 ## [2.4.4] - 2023-04-07
 658
 659 ### Added
 660
 661 - Add `PoolEvents` enumeration and `PoolEvent` type.
 662
 663 ### Fixed
 664
 665 - Destroy worker only on alive check.
 666
 667 ## [2.4.3] - 2023-04-07
 668
 669 ### Fixed
 670
 671 - Fix typedoc generation with inheritance.
 672
 673 ## [2.4.2] - 2023-04-06
 674
 675 ### Added
 676
 677 - Add `full` event to dynamic pool.
 678 - Keep worker choice strategy in memory for conditional reuse.
 679
 680 ### Fixed
 681
 682 - Fix possible negative worker key at worker removal in worker choice strategies.
 683
 684 ## [2.4.1] - 2023-04-05
 685
 686 ### Changed
 687
 688 - Optimize worker choice strategy for dynamic pool.
 689
 690 ### Fixed
 691
 692 - Ensure dynamic pool does not alter worker choice strategy expected behavior.
 693
 694 ## [2.4.0] - 2023-04-04
 695
 696 ### Added
 697
 698 - Add `LESS_BUSY` worker choice strategy.
 699
 700 ### Changed
 701
 702 - Optimize worker storage in pool.
 703 - Optimize worker alive status check.
 704 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
 705 - Optimize `LESS_USED` worker choice strategy.
 706 - Update benchmark versus external threads pools.
 707 - Optimize tasks usage statistics requirements for worker choice strategy.
 708
 709 ### Fixed
 710
 711 - Ensure trimmable characters are checked at pool initialization.
 712 - Fix message id integer overflow.
 713 - Fix pool worker removal in worker choice strategy internals.
 714 - Fix package publication with pnpm.
 715
 716 ## [2.4.0-3] - 2023-04-04
 717
 718 ### Added
 719
 720 - Add `LESS_BUSY` worker choice strategy.
 721
 722 ### Changed
 723
 724 - Optimize worker storage in pool.
 725 - Optimize worker alive status check.
 726 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
 727 - Optimize `LESS_USED` worker choice strategy.
 728 - Update benchmark versus external threads pools.
 729
 730 ### Fixed
 731
 732 - Ensure trimmable characters are checked at pool initialization.
 733 - Fix message id integer overflow.
 734 - Fix pool worker removal in worker choice strategy internals.
 735 - Fix package publication with pnpm.
 736
 737 ## [2.4.0-2] - 2023-04-03
 738
 739 ### Added
 740
 741 - Add `LESS_BUSY` worker choice strategy.
 742
 743 ### Changed
 744
 745 - Optimize worker storage in pool.
 746 - Optimize worker alive status check.
 747 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
 748 - Optimize `LESS_USED` worker choice strategy.
 749
 750 ### Fixed
 751
 752 - Ensure trimmable characters are checked at pool initialization.
 753 - Fix message id integer overflow.
 754 - Fix pool worker removal in worker choice strategy internals.
 755 - Fix package publication with pnpm.
 756
 757 ## [2.4.0-1] - 2023-04-03
 758
 759 ### Added
 760
 761 - Add `LESS_BUSY` worker choice strategy.
 762
 763 ### Changed
 764
 765 - Optimize worker storage in pool.
 766 - Optimize worker alive status check.
 767 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
 768 - Optimize `LESS_USED` worker choice strategy.
 769
 770 ### Fixed
 771
 772 - Ensure trimmable characters are checked at pool initialization.
 773 - Fix message id integer overflow.
 774 - Fix pool worker removal in worker choice strategy internals.
 775
 776 ## [2.4.0-0] - 2023-04-03
 777
 778 ### Added
 779
 780 - Add `LESS_BUSY` worker choice strategy.
 781
 782 ### Changed
 783
 784 - Optimize worker storage in pool.
 785 - Optimize worker alive status check.
 786 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
 787 - Optimize `LESS_USED` worker choice strategy.
 788
 789 ### Fixed
 790
 791 - Ensure trimmable characters are checked at pool initialization.
 792 - Fix message id integer overflow.
 793 - Fix pool worker removal in worker choice strategy internals.
 794
 795 ## [2.3.10] - 2023-03-18
 796
 797 ### Fixed
 798
 799 - Fix package.json `exports` syntax for ESM and CommonJS.
 800
 801 ### Changed
 802
 803 - Permit SemVer pre-release publication.
 804
 805 ## [2.3.10-2] - 2023-03-18
 806
 807 ### Fixed
 808
 809 - Fix package.json `exports` syntax for ESM and CommonJS.
 810
 811 ## [2.3.10-1] - 2023-03-18
 812
 813 ### Changed
 814
 815 - Permit SemVer pre-release publication.
 816
 817 ## [2.3.10-0] - 2023-03-18
 818
 819 ### Fixed
 820
 821 - Fix package.json `exports` syntax for ESM and CommonJS.
 822
 823 ## [2.3.9] - 2023-03-18
 824
 825 ### Changed
 826
 827 - Introduce ESM module support along with CommonJS one.
 828
 829 ### Fixed
 830
 831 - Fix brown paper bag bug referencing the same object literal.
 832
 833 ## [2.3.8] - 2023-03-18
 834
 835 ### Changed
 836
 837 - Switch internal benchmarking code to benny.
 838 - Switch to TypeScript 5.x.x.
 839 - Switch rollup bundler plugins to core ones.
 840 - Switch to TSDoc syntax.
 841 - Enforce conventional commits.
 842
 843 ### Fixed
 844
 845 - Fix random integer generator.
 846 - Fix worker choice strategy pool type identification at initialization.
 847
 848 ## [2.3.7] - 2022-10-23
 849
 850 ### Changed
 851
 852 - Switch to open collective FOSS project funding platform.
 853 - Switch to ts-standard linter configuration on TypeScript code.
 854
 855 ### Fixed
 856
 857 - Fixed missing async on pool execute method.
 858 - Fixed typing in TypeScript example.
 859 - Fixed types in unit tests.
 860
 861 ## [2.3.6] - 2022-10-22
 862
 863 ### Changed
 864
 865 - Cleanup pool attributes and methods.
 866 - Refine error types thrown.
 867
 868 ### Fixed
 869
 870 - Fix continuous integration build on windows.
 871 - Fix code coverage reporting by using c8 instead of nyc.
 872
 873 ## [2.3.5] - 2022-10-21
 874
 875 ### Changed
 876
 877 - Improve benchmarks: add IO intensive task workload, add task size option, integrate code into linter.
 878 - Optimize tasks usage lookup implementation.
 879
 880 ### Fixed
 881
 882 - Fix missed pool event emitter type export.
 883 - Fix typedoc documentation generation.
 884
 885 ## [2.3.4] - 2022-10-17
 886
 887 ### Added
 888
 889 - Fully automate release process with release-it.
 890
 891 ### Changed
 892
 893 - Optimize fair share task scheduling algorithm implementation.
 894 - Update benchmark versus external pools results with latest version.
 895
 896 ## [2.3.3] - 2022-10-15
 897
 898 ### Added
 899
 900 - Add support for [cluster settings](https://nodejs.org/api/cluster.html#cluster_cluster_settings) in cluster pool options.
 901
 902 ## [2.3.2] - 2022-10-14
 903
 904 ### Changed
 905
 906 - Optimize fair share worker selection strategy implementation.
 907
 908 ### Fixed
 909
 910 - Fix WRR worker selection strategy: ensure the condition triggering the round robin can be fulfilled.
 911
 912 ## [2.3.1] - 2022-10-13
 913
 914 ### Added
 915
 916 - Pool worker choice strategies:
 917   - `WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN` strategy based on weighted round robin scheduling algorithm using tasks execution time for now.
 918   - `WorkerChoiceStrategies.FAIR_SHARE` strategy based on fair share scheduling algorithm using tasks execution time for now.
 919
 920 ## [2.2.2] - 2022-10-09
 921
 922 ### Fixed
 923
 924 - Fixed `README.md` file.
 925
 926 ## [2.2.1] - 2022-10-08
 927
 928 ### Added
 929
 930 - Dynamic worker choice strategy change at runtime.
 931
 932 ## [2.2.0] - 2022-01-05
 933
 934 ### Breaking Changes
 935
 936 - Support only Node.js version 16.x.x for cluster pool: upstream cluster API have changed on that version.
 937
 938 ## [2.1.0] - 2021-08-29
 939
 940 ### Added
 941
 942 - Add an optional pool option `messageHandler` to `PoolOptions<Worker>` for registering a message handler callback on each worker.
 943
 944 ### Breaking Changes
 945
 946 - `AbstractWorker` class `maxInactiveTime`, `killBehavior` and `async` attributes have been removed in favour of the same ones in the worker options `opts` public attribute.
 947 - `AbstractWorker` class `lastTask` attribute have been renamed to `lastTaskTimestamp`.
 948 - `AbstractWorker` class `interval` attribute have been renamed to `aliveInterval`.
 949 - `AbstractWorker` class cannot be instantiated without specifying the `mainWorker` argument referencing the main worker.
 950
 951 ## [2.0.2] - 2021-05-12
 952
 953 ### Bug fixes
 954
 955 - Fix `busy` event emission on fixed pool type
 956
 957 ## [2.0.1] - 2021-03-16
 958
 959 ### Bug fixes
 960
 961 - Check if pool options are properly set.
 962 - `busy` event is emitted on all pool types.
 963
 964 ## [2.0.0] - 2021-03-01
 965
 966 ### Bug fixes
 967
 968 - Now a thread/process by default is not deleted when the task submitted take more time than maxInactiveTime configured (issue #70).
 969
 970 ### Breaking Changes
 971
 972 - `FullPool` event is now renamed to `busy`.
 973 - `maxInactiveTime` on `ThreadWorker` default behavior is now changed, if you want to keep the old behavior set `killBehavior` to `KillBehaviors.HARD`.
 974   _Find more details on our JSDoc._
 975
 976 - `maxTasks` option on `FixedThreadPool` and `DynamicThreadPool` is now removed since is no more needed.
 977
 978 - We changed some internal structures, but you shouldn't be too affected by them as these are internal changes.
 979
 980 ### Pool options types declaration merge
 981
 982 `FixedThreadPoolOptions` and `DynamicThreadPoolOptions` type declarations have been merged to `PoolOptions<Worker>`.
 983
 984 #### New `export` strategy
 985
 986 ```js
 987 // Before
 988 const DynamicThreadPool = require('poolifier/lib/dynamic')
 989 // After
 990 const { DynamicThreadPool } = require('poolifier/lib/dynamic')
 991 ```
 992
 993 But you should always prefer just using
 994
 995 ```js
 996 const { DynamicThreadPool } = require('poolifier')
 997 ```
 998
 999 #### New type definitions for input data and response
1000
1001 For cluster worker and worker-thread pools, you can now only send and receive structured-cloneable data.
1002 _This is not a limitation by poolifier but Node.js._
1003
1004 #### Public property replacements
1005
1006 `numWorkers` property is now `numberOfWorkers`
1007
1008 #### Internal (protected) properties and methods renaming
1009
1010 These properties are not intended for end users
1011
1012 - `id` => `nextMessageId`
1013
1014 These methods are not intended for end users
1015
1016 - `_chooseWorker` => `chooseWorker`
1017 - `_newWorker` => `createWorker`
1018 - `_execute` => `internalExecute`
1019 - `_chooseWorker` => `chooseWorker`
1020 - `_checkAlive` => `checkAlive`
1021 - `_run` => `run`
1022 - `_runAsync` => `runAsync`
1023
1024 ## [1.1.0] - 2020-05-21
1025
1026 ### Added
1027
1028 - ThreadWorker support async functions as option
1029 - Various external library patches
1030
1031 ## [1.0.0] - 2020-01-24
1032
1033 ### Added
1034
1035 - FixedThreadPool implementation
1036 - DynamicThreadPool implementation
1037 - WorkerThread implementation to improve developer experience