Github user pwendell commented on a diff in the pull request: https://github.com/apache/spark/pull/86#discussion_r10506918 --- Diff: core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala --- @@ -0,0 +1,188 @@ +/* + * 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.deploy + +import java.io.File +import java.net.URL +import java.net.URLClassLoader + +import scala.collection.mutable.ArrayBuffer +import scala.collection.mutable.HashMap +import scala.collection.mutable.Map + +object SparkSubmit { + val YARN = 1 + val STANDALONE = 2 + val MESOS = 4 + val LOCAL = 8 + val ALL_CLUSTER_MGRS = YARN | STANDALONE | MESOS | LOCAL + + var clusterManager: Int = LOCAL + + def main(args: Array[String]) { + val appArgs = new SparkSubmitArguments(args) + val (childArgs, classpath, sysProps, mainClass) = createLaunchEnv(appArgs) + launch(childArgs, classpath, sysProps, mainClass) + } + + /** + * @return + * a tuple containing the arguments for the child, a list of classpath + * entries for the child, and the main class for the child + */ + def createLaunchEnv(appArgs: SparkSubmitArguments): (ArrayBuffer[String], + ArrayBuffer[String], Map[String, String], String) = { + if (appArgs.master != null) { + if (appArgs.master.startsWith("yarn")) { + clusterManager = YARN + } else if (appArgs.master.startsWith("spark")) { + clusterManager = STANDALONE + } else if (appArgs.master.startsWith("mesos")) { + clusterManager = MESOS + } else if (appArgs.master.startsWith("local")) { + clusterManager = LOCAL + } else { + System.err.println("master must start with yarn, mesos, spark, or local") + System.exit(1) + } + } + + val deployOnCluster = appArgs.deployMode == "cluster" + val childClasspath = new ArrayBuffer[String]() + val childArgs = new ArrayBuffer[String]() + val sysProps = new HashMap[String, String]() + var childMainClass = "" + + if (clusterManager == MESOS && deployOnCluster) { + System.err.println("Mesos does not support running the driver on the cluster") + System.exit(1) + } + + if (!deployOnCluster) { + childMainClass = appArgs.mainClass + childClasspath += appArgs.primaryResource + } else if (clusterManager == YARN) { + childMainClass = "org.apache.spark.deploy.yarn.Client" + childArgs += ("--jar", appArgs.primaryResource) + childArgs += ("--class", appArgs.mainClass) + } + + val options = List[OptionAssigner]( + new OptionAssigner(appArgs.driverMemory, YARN, true, clOption = "--master-memory"), + new OptionAssigner(appArgs.name, YARN, true, clOption = "--name"), + new OptionAssigner(appArgs.queue, YARN, true, clOption = "--queue"), + new OptionAssigner(appArgs.queue, YARN, false, sysProp = "spark.yarn.queue"), + new OptionAssigner(appArgs.numExecutors, YARN, true, clOption = "--num-workers"), + new OptionAssigner(appArgs.numExecutors, YARN, false, sysProp = "spark.worker.instances"), + new OptionAssigner(appArgs.executorMemory, YARN, true, clOption = "--worker-memory"), + new OptionAssigner(appArgs.executorMemory, STANDALONE, true, clOption = "--memory"), + new OptionAssigner(appArgs.executorMemory, STANDALONE | MESOS | YARN, false, sysProp = "spark.executor.memory"), + new OptionAssigner(appArgs.executorCores, YARN, true, clOption = "--worker-cores"), + new OptionAssigner(appArgs.executorCores, STANDALONE, true, clOption = "--cores"), + new OptionAssigner(appArgs.executorCores, STANDALONE | MESOS | YARN, false, sysProp = "spark.cores.max"), + new OptionAssigner(appArgs.files, YARN, false, sysProp = "spark.yarn.dist.files"), + new OptionAssigner(appArgs.files, YARN, true, clOption = "--files"), + new OptionAssigner(appArgs.archives, YARN, false, sysProp = "spark.yarn.dist.archives"), + new OptionAssigner(appArgs.archives, YARN, true, clOption = "--archives"), + new OptionAssigner(appArgs.moreJars, YARN, true, clOption = "--addJars") + ) + + // more jars + if (appArgs.moreJars != null && !deployOnCluster) { + for (jar <- appArgs.moreJars.split(",")) { + childClasspath += jar + } + } + + for (opt <- options) { + if (opt.value != null && deployOnCluster == opt.deployOnCluster && + (clusterManager & opt.clusterManager) != 0) { + if (opt.clOption != null) { + childArgs += (opt.clOption, opt.value) + } else if (opt.sysProp != null) { + sysProps.put(opt.sysProp, opt.value) + } + } + } + + // supervise + if (appArgs.supervise && deployOnCluster && clusterManager == STANDALONE) { + childArgs += "--supervise" + } + + if (deployOnCluster && clusterManager == STANDALONE) { --- End diff -- Would it make sense to nest the supervise thing inside of this if statement: if (appArgs.supervise) childArgs += "--supervise"
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