Constructs a new poolifier dynamic cluster pool.
Minimum number of workers which are always active.
Maximum number of workers that can be created by this pool.
Path to an implementation of a ClusterWorker file, which can be relative or absolute.
Options for this dynamic cluster pool.
Optional Readonly emitterReadonly fileReadonly maxProtected nextId of the next message.
Readonly numberReadonly optsProtected promiseThe promise map.
key: This is the message Id of each submitted task.value: An object that contains the worker, the resolve function and the reject function.When we receive a message from the worker we get a map entry and resolve/reject the promise based on the message.
Protected workerWorker choice strategy instance implementing the worker choice algorithm.
Default to a strategy implementing a round robin algorithm.
Readonly workersReadonly workersProtected afterHook executed after the worker task promise resolution. Can be overridden.
The received message.
The Promise response.
Protected afterProtected beforeProtected chooseProtected createProtected createProtected internalProtected internalProtected isProtected removeProtected sendProtected setupProtected workerThis function is the listener registered for each worker.
The listener function to execute when a message is received from a worker.
This function is the listener registered for each worker.
The listener function to execute when a message is received from a worker.
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A cluster pool with a dynamic number of workers, but a guaranteed minimum number of workers.
This cluster pool creates new workers when the others are busy, up to the maximum number of workers. When the maximum number of workers is reached, an event is emitted. If you want to listen to this event, use the pool's
emitter.Template
of data sent to the worker. This can only be serializable data.
Template
of response of execution. This can only be serializable data.
Author
Christopher Quadflieg
Since
2.0.0