:: DeveloperApi :: Information about an org.apache.spark.Accumulable modified during a task or stage.
Once this is JSON serialized the types of
value will be lost and be
cast to strings. This is because the user can define an accumulator of any type and it will
be difficult to preserve the type in consumers of the event log. This does not apply to
internal accumulators that represent task level metrics.
:: DeveloperApi :: Parses and holds information about inputFormat (and files) specified as a parameter.
:: DeveloperApi :: A result of a job in the DAGScheduler.
:: DeveloperApi ::
A default implementation for
SparkListenerInterface that has no-op implementations for
Periodic updates from executors.
sequence of (taskId, stageId, stageAttemptId, accumUpdates)
:: DeveloperApi :: Stores information about a stage to pass from the scheduler to SparkListeners.
:: DeveloperApi :: Simple SparkListener that logs a few summary statistics when each stage completes.
:: DeveloperApi :: Information about a running task attempt inside a TaskSet.
A collection of deprecated constructors.
"FAIR" and "FIFO" determines which policy is used to order tasks amongst a Schedulable's sub-queues "NONE" is used when the a Schedulable has no sub-queues.