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.
+Maximum number of workers that can be created by this pool.
Readonly numberReadonly optsProtected promiseThe promise map.
+Protected promiseThe execution response 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.key: The message id of each submitted task.value: An object that contains the worker, the execution response promise resolve and reject callbacks.When we receive a message from the worker we get a map entry and resolve/reject the promise based on the message.
+When we receive a message from the worker, we get a map entry with the promise resolve/reject bound to the message id.
Protected workerWorker choice strategy instance implementing the worker choice algorithm.
-Default to a strategy implementing a round robin algorithm.
+ +Worker choice strategy context referencing a worker choice algorithm implementation.
+Default to a round robin algorithm.
Readonly workersReadonly workersReadonly workerPool worker nodes.
+Protected busyWhether the pool is busy or not.
+The pool busyness boolean status.
+Protected fullWhether the pool is full or not.
+The pool filling boolean status.
+Private numberNumber of tasks queued in the pool.
+Private numberNumber of tasks running in the pool.
+Protected afterProtected afterHook executed after the worker task promise resolution. +
Hook executed after the worker task execution. Can be overridden.
The received message.
+The worker.
Protected afterFunction that can be hooked up when a worker has been newly created and moved to the pool worker nodes.
+Can be used to update the maxListeners or binding the main-worker<->worker connection if not bind by default.
The newly created worker.
+Protected beforeProtected beforeHook executed before the worker task promise resolution. +
Hook executed before the worker task execution. Can be overridden.
The worker.
+The worker node key.
Protected chooseProtected chooseChooses a worker for the next task.
-The default implementation uses a round robin algorithm to distribute the load.
- -Worker.
+Chooses a worker node for the next task.
+The default uses a round robin algorithm to distribute the load.
Protected createCreates a new worker for this pool and sets it up completely.
- -New, completely set up worker.
+Creates a new worker and sets it up completely in the pool worker nodes.
Protected createProtected destroyInitializes tasks usage statistics.
+Executes the function specified in the worker constructor with the task data input parameter.
The worker.
+Optional data: DataThe task input data for the specified worker function. This can only be serializable data.
Protected internalProtected internalProtected internalProtected isProtected registerThe worker which should register a listener.
+The message listener callback.
+Protected removeProtected sendRemoves the given worker from the pool.
+Sends a message to the given worker.
The worker that will be removed.
+The worker which should receive the message.
+The message.
Protected sendSets the worker tasks queue options in this pool.
+The worker tasks queue options.
+Sets the worker choice strategy in this pool.
+The worker choice strategy.
+Optional workerChoiceStrategyOptions: WorkerChoiceStrategyOptionsThe worker choice strategy options.
+Sets the worker choice strategy options in this pool.
+The worker choice strategy options.
+Protected 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 message.
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.
+This function is the listener registered for each worker message.
The listener function to execute when a message is received from a worker.
+Generated using TypeDoc
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.
+When the maximum number of workers is reached and workers are busy, an event is emitted. If you want to listen to this event, use the pool'semitter.Author
Christopher Quadflieg
Since
2.0.0