spark ExecutorLossReason 源码
spark ExecutorLossReason 代码
文件路径:/core/src/main/scala/org/apache/spark/scheduler/ExecutorLossReason.scala
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.scheduler
import org.apache.spark.executor.ExecutorExitCode
/**
* Represents an explanation for an executor or whole process failing or exiting.
*/
private[spark]
class ExecutorLossReason(val message: String) extends Serializable {
override def toString: String = message
}
private[spark]
case class ExecutorExited(exitCode: Int, exitCausedByApp: Boolean, reason: String)
extends ExecutorLossReason(reason)
private[spark] object ExecutorExited {
def apply(exitCode: Int, exitCausedByApp: Boolean): ExecutorExited = {
ExecutorExited(
exitCode,
exitCausedByApp,
ExecutorExitCode.explainExitCode(exitCode))
}
}
private[spark] object ExecutorLossMessage {
val decommissionFinished = "Finished decommissioning"
}
private[spark] object ExecutorKilled extends ExecutorLossReason("Executor killed by driver.")
/**
* A loss reason that means we don't yet know why the executor exited.
*
* This is used by the task scheduler to remove state associated with the executor, but
* not yet fail any tasks that were running in the executor before the real loss reason
* is known.
*/
private [spark] object LossReasonPending extends ExecutorLossReason("Pending loss reason.")
/**
* @param _message human readable loss reason
* @param workerHost it's defined when the host is confirmed lost too (i.e. including
* shuffle service)
* @param causedByApp whether the loss of the executor is the fault of the running app.
* (assumed true by default unless known explicitly otherwise)
*/
private[spark]
case class ExecutorProcessLost(
_message: String = "Executor Process Lost",
workerHost: Option[String] = None,
causedByApp: Boolean = true)
extends ExecutorLossReason(_message)
/**
* A loss reason that means the executor is marked for decommissioning.
*
* This is used by the task scheduler to remove state associated with the executor, but
* not yet fail any tasks that were running in the executor before the executor is "fully" lost.
* If you update this code make sure to re-run the K8s integration tests.
*
* @param workerHost it is defined when the worker is decommissioned too
* @param reason detailed decommission message
*/
private [spark] case class ExecutorDecommission(
workerHost: Option[String] = None,
reason: String = "")
extends ExecutorLossReason(ExecutorDecommission.msgPrefix + reason)
private[spark] object ExecutorDecommission {
val msgPrefix = "Executor decommission: "
}
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