23 lines
834 B
Scala
23 lines
834 B
Scala
package spark
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import spark.storage.BlockManagerId
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/**
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* Various possible reasons why a task ended. The low-level TaskScheduler is supposed to retry
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* tasks several times for "ephemeral" failures, and only report back failures that require some
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* old stages to be resubmitted, such as shuffle map fetch failures.
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*/
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private[spark] sealed trait TaskEndReason
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private[spark] case object Success extends TaskEndReason
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private[spark]
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case object Resubmitted extends TaskEndReason // Task was finished earlier but we've now lost it
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private[spark]
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case class FetchFailed(bmAddress: BlockManagerId, shuffleId: Int, mapId: Int, reduceId: Int) extends TaskEndReason
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private[spark] case class ExceptionFailure(exception: Throwable) extends TaskEndReason
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private[spark] case class OtherFailure(message: String) extends TaskEndReason
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