org.apache.spark.scheduler.DAGSchedulerEvent.scala Maven / Gradle / Ivy
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* http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.spark.scheduler
import java.util.Properties
import scala.language.existentials
import org.apache.spark._
import org.apache.spark.rdd.RDD
import org.apache.spark.util.{AccumulatorV2, CallSite}
/**
* Types of events that can be handled by the DAGScheduler. The DAGScheduler uses an event queue
* architecture where any thread can post an event (e.g. a task finishing or a new job being
* submitted) but there is a single "logic" thread that reads these events and takes decisions.
* This greatly simplifies synchronization.
*/
private[scheduler] sealed trait DAGSchedulerEvent
/** A result-yielding job was submitted on a target RDD */
private[scheduler] case class JobSubmitted(
jobId: Int,
finalRDD: RDD[_],
func: (TaskContext, Iterator[_]) => _,
partitions: Array[Int],
callSite: CallSite,
listener: JobListener,
properties: Properties = null)
extends DAGSchedulerEvent
/** A map stage as submitted to run as a separate job */
private[scheduler] case class MapStageSubmitted(
jobId: Int,
dependency: ShuffleDependency[_, _, _],
callSite: CallSite,
listener: JobListener,
properties: Properties = null)
extends DAGSchedulerEvent
private[scheduler] case class StageCancelled(
stageId: Int,
reason: Option[String])
extends DAGSchedulerEvent
private[scheduler] case class JobCancelled(
jobId: Int,
reason: Option[String])
extends DAGSchedulerEvent
private[scheduler] case class JobGroupCancelled(groupId: String) extends DAGSchedulerEvent
private[scheduler] case object AllJobsCancelled extends DAGSchedulerEvent
private[scheduler]
case class BeginEvent(task: Task[_], taskInfo: TaskInfo) extends DAGSchedulerEvent
private[scheduler]
case class GettingResultEvent(taskInfo: TaskInfo) extends DAGSchedulerEvent
private[scheduler] case class CompletionEvent(
task: Task[_],
reason: TaskEndReason,
result: Any,
accumUpdates: Seq[AccumulatorV2[_, _]],
taskInfo: TaskInfo)
extends DAGSchedulerEvent
private[scheduler] case class ExecutorAdded(execId: String, host: String) extends DAGSchedulerEvent
private[scheduler] case class ExecutorLost(execId: String, reason: ExecutorLossReason)
extends DAGSchedulerEvent
private[scheduler] case class WorkerRemoved(workerId: String, host: String, message: String)
extends DAGSchedulerEvent
private[scheduler]
case class TaskSetFailed(taskSet: TaskSet, reason: String, exception: Option[Throwable])
extends DAGSchedulerEvent
private[scheduler] case object ResubmitFailedStages extends DAGSchedulerEvent
private[scheduler]
case class SpeculativeTaskSubmitted(task: Task[_]) extends DAGSchedulerEvent