org.apache.spark.scheduler.cluster.mesos.MesosClusterManager.scala Maven / Gradle / Ivy
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* 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
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package org.apache.spark.scheduler.cluster.mesos
import org.apache.spark.SparkContext
import org.apache.spark.deploy.mesos.config._
import org.apache.spark.internal.config._
import org.apache.spark.scheduler.{ExternalClusterManager, SchedulerBackend, TaskScheduler, TaskSchedulerImpl}
/**
* Cluster Manager for creation of Mesos scheduler and backend
*/
private[spark] class MesosClusterManager extends ExternalClusterManager {
private val MESOS_REGEX = """mesos://(.*)""".r
override def canCreate(masterURL: String): Boolean = {
masterURL.startsWith("mesos")
}
override def createTaskScheduler(sc: SparkContext, masterURL: String): TaskScheduler = {
new TaskSchedulerImpl(sc)
}
override def createSchedulerBackend(sc: SparkContext,
masterURL: String,
scheduler: TaskScheduler): SchedulerBackend = {
require(!sc.conf.get(IO_ENCRYPTION_ENABLED),
"I/O encryption is currently not supported in Mesos.")
val mesosUrl = MESOS_REGEX.findFirstMatchIn(masterURL).get.group(1)
val coarse = sc.conf.get(COARSE_MODE)
if (coarse) {
new MesosCoarseGrainedSchedulerBackend(
scheduler.asInstanceOf[TaskSchedulerImpl],
sc,
mesosUrl,
sc.env.securityManager)
} else {
new MesosFineGrainedSchedulerBackend(
scheduler.asInstanceOf[TaskSchedulerImpl],
sc,
mesosUrl)
}
}
override def initialize(scheduler: TaskScheduler, backend: SchedulerBackend): Unit = {
scheduler.asInstanceOf[TaskSchedulerImpl].initialize(backend)
}
}