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/*
* 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.scheduler.SchedulingMode.SchedulingMode
import scala.collection.mutable.ArrayBuffer
/**
* An interface for schedulable entities.
* there are two type of Schedulable entities(Pools and TaskSetManagers)
*/
private[spark] trait Schedulable {
var parent: Schedulable
// child queues
def schedulableQueue: ArrayBuffer[Schedulable]
def schedulingMode: SchedulingMode
def weight: Int
def minShare: Int
def runningTasks: Int
def priority: Int
def stageId: Int
def name: String
def increaseRunningTasks(taskNum: Int): Unit
def decreaseRunningTasks(taskNum: Int): Unit
def addSchedulable(schedulable: Schedulable): Unit
def removeSchedulable(schedulable: Schedulable): Unit
def getSchedulableByName(name: String): Schedulable
def executorLost(executorId: String, host: String): Unit
def checkSpeculatableTasks(): Boolean
def getSortedTaskSetQueue(): ArrayBuffer[TaskSetManager]
def hasPendingTasks(): Boolean
}
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