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ExecutorMetricsPoller

Creating Instance

ExecutorMetricsPoller takes the following to be created:

ExecutorMetricsPoller is created when:

executor-metrics-poller

ExecutorMetricsPoller creates a ScheduledExecutorService (Java) when created with the spark.executor.metrics.pollingInterval greater than 0.

The ScheduledExecutorService manages 1 daemon thread with executor-metrics-poller name prefix.

The ScheduledExecutorService is requested to poll at every pollingInterval when ExecutorMetricsPoller is requested to start until stop.

poll

poll(): Unit

poll...FIXME

poll is used when:

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