3 All notable changes to this project will be documented in this file.
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).
12 - Add `full` event to dynamic pool.
13 - Keep worker choice strategy usage in memory for conditional reuse.
15 ## [2.4.1] - 2023-04-05
19 - Optimize worker choice strategy for dynamic pool.
23 - Ensure dynamic pool does not alter worker choice strategy expected behavior.
25 ## [2.4.0] - 2023-04-04
29 - Add `LESS_BUSY` worker choice strategy.
33 - Optimize worker storage in pool.
34 - Optimize worker alive status check.
35 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
36 - Optimize `LESS_USED` worker choice strategy.
37 - Update benchmarks versus external threads pools.
38 - Optimize tasks usage statistics requirements for worker choice strategy.
42 - Ensure trimmable characters are checked at pool initialization.
43 - Fix message id integer overflow.
44 - Fix pool worker removal in worker choice strategy internals.
45 - Fix package publication with pnpm.
47 ## [2.4.0-3] - 2023-04-04
51 - Add `LESS_BUSY` worker choice strategy.
55 - Optimize worker storage in pool.
56 - Optimize worker alive status check.
57 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
58 - Optimize `LESS_USED` worker choice strategy.
59 - Update benchmarks versus external threads pools.
63 - Ensure trimmable characters are checked at pool initialization.
64 - Fix message id integer overflow.
65 - Fix pool worker removal in worker choice strategy internals.
66 - Fix package publication with pnpm.
68 ## [2.4.0-2] - 2023-04-03
72 - Add `LESS_BUSY` worker choice strategy.
76 - Optimize worker storage in pool.
77 - Optimize worker alive status check.
78 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
79 - Optimize `LESS_USED` worker choice strategy.
83 - Ensure trimmable characters are checked at pool initialization.
84 - Fix message id integer overflow.
85 - Fix pool worker removal in worker choice strategy internals.
86 - Fix package publication with pnpm.
88 ## [2.4.0-1] - 2023-04-03
92 - Add `LESS_BUSY` worker choice strategy.
96 - Optimize worker storage in pool.
97 - Optimize worker alive status check.
98 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
99 - Optimize `LESS_USED` worker choice strategy.
103 - Ensure trimmable characters are checked at pool initialization.
104 - Fix message id integer overflow.
105 - Fix pool worker removal in worker choice strategy internals.
107 ## [2.4.0-0] - 2023-04-03
111 - Add `LESS_BUSY` worker choice strategy.
115 - Optimize worker storage in pool.
116 - Optimize worker alive status check.
117 - BREAKING CHANGE: Rename worker choice strategy `LESS_RECENTLY_USED` to `LESS_USED`.
118 - Optimize `LESS_USED` worker choice strategy.
122 - Ensure trimmable characters are checked at pool initialization.
123 - Fix message id integer overflow.
124 - Fix pool worker removal in worker choice strategy internals.
126 ## [2.3.10] - 2023-03-18
130 - Fix `exports` syntax for ESM and CommonJS.
134 - Permit SemVer pre-release publication.
136 ## [2.3.10-2] - 2023-03-18
140 - Fix `exports` syntax for ESM and CommonJS.
142 ## [2.3.10-1] - 2023-03-18
146 - Permit SemVer pre-release publication.
148 ## [2.3.10-0] - 2023-03-18
152 - Fix `exports` syntax for ESM and CommonJS.
154 ## [2.3.9] - 2023-03-18
158 - Introduce ESM module support along with CommonJS one.
162 - Fix brown paper bag bug referencing the same object literal.
164 ## [2.3.8] - 2023-03-18
168 - Switch internal benchmarking code to benny.
169 - Switch to TypeScript 5.x.x.
170 - Switch rollup bundler plugins to core ones.
171 - Switch to TSDoc syntax.
172 - Enforce conventional commits.
176 - Fix random integer generator.
177 - Fix worker choice strategy pool type identification at initialization.
179 ## [2.3.7] - 2022-10-23
183 - Switch to open collective FOSS project funding platform.
184 - Switch to ts-standard linter configuration on TypeScript code.
188 - Fixed missing async on pool execute method.
189 - Fixed typing in TypeScript example.
190 - Fixed types in unit tests.
192 ## [2.3.6] - 2022-10-22
196 - Cleanup pool attributes and methods.
197 - Refine error types thrown.
201 - Fix continuous integration build on windows.
202 - Fix code coverage reporting by using c8 instead of nyc.
204 ## [2.3.5] - 2022-10-21
208 - Improve benchmarks: add IO intensive task workload, add task size option, integrate code into linter.
209 - Optimize tasks usage lookup implementation.
213 - Fix missed pool event emitter type export.
214 - Fix typedoc documentation generation.
216 ## [2.3.4] - 2022-10-17
220 - Fully automate release process with release-it.
224 - Optimize fair share task scheduling algorithm implementation.
225 - Update benchmarks versus external pools results with latest version.
227 ## [2.3.3] - 2022-10-15
231 - Add support for [cluster settings](https://nodejs.org/api/cluster.html#cluster_cluster_settings) in cluster pool options.
233 ## [2.3.2] - 2022-10-14
237 - Optimize fair share worker selection strategy implementation.
241 - Fix WRR worker selection strategy: ensure the condition triggering the round robin can be fulfilled.
243 ## [2.3.1] - 2022-10-13
247 - Pool worker choice strategies:
248 - `WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN` strategy based on weighted round robin scheduling algorithm using tasks execution time for now.
249 - `WorkerChoiceStrategies.FAIR_SHARE` strategy based on fair share scheduling algorithm using tasks execution time for now.
251 ## [2.2.2] - 2022-10-09
255 - Fixed `README.md` file.
257 ## [2.2.1] - 2022-10-08
261 - Dynamic worker choice strategy change at runtime.
263 ## [2.2.0] - 2022-01-05
267 - Support only NodeJS version 16.x.x for cluster pool: upstream cluster API have changed on that version.
269 ## [2.1.0] - 2021-08-29
273 - Add an optional pool option `messageHandler` to `PoolOptions<Worker>` for registering a message handler callback on each worker.
277 - `AbstractWorker` class `maxInactiveTime`, `killBehavior` and `async` attributes have been removed in favour of the same ones in the worker options `opts` public attribute.
278 - `AbstractWorker` class `lastTask` attribute have been renamed to `lastTaskTimestamp`.
279 - `AbstractWorker` class `interval` attribute have been renamed to `aliveInterval`.
280 - `AbstractWorker` class cannot be instantiated without specifying the `mainWorker` argument referencing the main worker.
282 ## [2.0.2] - 2021-05-12
286 - Fix `busy` event emission on fixed pool type
288 ## [2.0.1] - 2021-03-16
292 - Check if pool options are properly set.
293 - `busy` event is emitted on all pool types.
295 ## [2.0.0] - 2021-03-01
299 - Now a thread/process by default is not deleted when the task submitted take more time than maxInactiveTime configured (issue #70).
303 - `FullPool` event is now renamed to `busy`.
304 - `maxInactiveTime` on `ThreadWorker` default behavior is now changed, if you want to keep the old behavior set `killBehavior` to `KillBehaviors.HARD`.
305 _Find more details on our JSDoc._
307 - `maxTasks` option on `FixedThreadPool` and `DynamicThreadPool` is now removed since is no more needed.
309 - We changed some internal structures, but you shouldn't be too affected by them as these are internal changes.
311 ### Pool options types declaration merge
313 `FixedThreadPoolOptions` and `DynamicThreadPoolOptions` type declarations have been merged to `PoolOptions<Worker>`.
315 #### New `export` strategy
319 const DynamicThreadPool = require('poolifier/lib/dynamic')
321 const { DynamicThreadPool } = require('poolifier/lib/dynamic')
324 But you should always prefer just using
327 const { DynamicThreadPool } = require('poolifier')
330 #### New type definitions for input data and response
332 For cluster worker and worker-thread pools, you can now only send and receive serializable data.
333 _This is not a limitation by poolifier but NodeJS._
335 #### Public property replacements
337 `numWorkers` property is now `numberOfWorkers`
339 #### Internal (protected) properties and methods renaming
341 These properties are not intended for end users
343 - `id` => `nextMessageId`
345 These methods are not intended for end users
347 - `_chooseWorker` => `chooseWorker`
348 - `_newWorker` => `createWorker`
349 - `_execute` => `internalExecute`
350 - `_chooseWorker` => `chooseWorker`
351 - `_checkAlive` => `checkAlive`
353 - `_runAsync` => `runAsync`
355 ## [1.1.0] - 2020-05-21
359 - ThreadWorker support async functions as option
360 - Various external library patches
362 ## [1.0.0] - 2020-01-24
366 - FixedThreadPool implementation
367 - DynamicThreadPool implementation
368 - WorkerThread implementation to improve developer experience