- `WorkerChoiceStrategies.LEAST_USED`: Submit tasks to the worker with the minimum number of executed, executing and queued tasks
- `WorkerChoiceStrategies.LEAST_BUSY`: Submit tasks to the worker with the minimum tasks total execution and wait time
- `WorkerChoiceStrategies.LEAST_ELU`: Submit tasks to the worker with the minimum event loop utilization (ELU)
- - `WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN`: Submit tasks to worker by using a [weighted round robin scheduling algorithm](./../docs/worker-choice-strategies.md#weighted-round-robin) based on tasks execution time
- - `WorkerChoiceStrategies.INTERLEAVED_WEIGHTED_ROUND_ROBIN`: Submit tasks to worker by using an [interleaved weighted round robin scheduling algorithm](./../docs/worker-choice-strategies.md#interleaved-weighted-round-robin) based on tasks execution time (experimental)
- - `WorkerChoiceStrategies.FAIR_SHARE`: Submit tasks to worker by using a [fair share scheduling algorithm](./../docs/worker-choice-strategies.md#fair-share) based on tasks execution time (the default) or ELU active time
+ - `WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN`: Submit tasks to worker by using a [weighted round robin scheduling algorithm](./worker-choice-strategies.md#weighted-round-robin) based on tasks execution time
+ - `WorkerChoiceStrategies.INTERLEAVED_WEIGHTED_ROUND_ROBIN`: Submit tasks to worker by using an [interleaved weighted round robin scheduling algorithm](./worker-choice-strategies.md#interleaved-weighted-round-robin) based on tasks execution time (experimental)
+ - `WorkerChoiceStrategies.FAIR_SHARE`: Submit tasks to worker by using a [fair share scheduling algorithm](./worker-choice-strategies.md#fair-share) based on tasks execution time (the default) or ELU active time
`WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN`, `WorkerChoiceStrategies.INTERLEAVED_WEIGHTED_ROUND_ROBIN` and `WorkerChoiceStrategies.FAIR_SHARE` strategies are targeted to heavy and long tasks.
Default: `WorkerChoiceStrategies.ROUND_ROBIN`
- `choiceRetries` (optional) - The number of retries to perform if no worker is eligible.
- `measurement` (optional) - The measurement to use in worker choice strategies: `runTime`, `waitTime` or `elu`.
- - `runTime` (optional) - Use the tasks [median](./../docs/worker-choice-strategies.md#median) runtime instead of the tasks average runtime in worker choice strategies.
- - `waitTime` (optional) - Use the tasks [median](./../docs/worker-choice-strategies.md#median) wait time instead of the tasks average wait time in worker choice strategies.
- - `elu` (optional) - Use the tasks [median](./../docs/worker-choice-strategies.md#median) ELU instead of the tasks average ELU in worker choice strategies.
+ - `runTime` (optional) - Use the tasks [simple moving median](./worker-choice-strategies.md#simple-moving-median) runtime instead of the tasks simple moving average runtime in worker choice strategies.
+ - `waitTime` (optional) - Use the tasks [simple moving median](./worker-choice-strategies.md#simple-moving-median) wait time instead of the tasks simple moving average wait time in worker choice strategies.
+ - `elu` (optional) - Use the tasks [simple moving median](./worker-choice-strategies.md#simple-moving-median) ELU instead of the tasks simple moving average ELU in worker choice strategies.
- `weights` (optional) - The worker weights to use in weighted round robin worker choice strategies: `{ 0: 200, 1: 300, ..., n: 100 }`.
Default: `{ choiceRetries: 6, runTime: { median: false }, waitTime: { median: false }, elu: { median: false } }`
- `tasksQueueOptions` (optional) - The worker tasks queue options object to use in this pool.
Properties:
+ - `size` (optional) - The maximum number of tasks that can be queued on a worker before flagging it as back pressured. It must be a positive integer.
- `concurrency` (optional) - The maximum number of tasks that can be executed concurrently on a worker. It must be a positive integer.
- Default: `{ concurrency: 1 }`
+ Default: `{ size: (pool maximum size)^2, concurrency: 1 }`
#### `ThreadPoolOptions extends PoolOptions`