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Caution
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FIXME |
ExecutorAllocationListener is a SparkListener that intercepts events about stages, tasks, and executors, i.e. onStageSubmitted, onStageCompleted, onTaskStart, onTaskEnd, onExecutorAdded, and onExecutorRemoved. Using the events ExecutorAllocationManager can manage the pool of dynamically managed executors.
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Note
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ExecutorAllocationListener is an internal class of ExecutorAllocationManager with full access to its internal registries.
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