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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.launcher;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.regex.Pattern;
import static org.apache.spark.launcher.CommandBuilderUtils.*;
/**
* Command builder for internal Spark classes.
* <p>
* This class handles building the command to launch all internal Spark classes except for
* SparkSubmit (which is handled by {@link SparkSubmitCommandBuilder} class.
*/
class SparkClassCommandBuilder extends AbstractCommandBuilder {
private final String className;
private final List<String> classArgs;
SparkClassCommandBuilder(String className, List<String> classArgs) {
this.className = className;
this.classArgs = classArgs;
}
@Override
public List<String> buildCommand(Map<String, String> env) throws IOException {
List<String> javaOptsKeys = new ArrayList<>();
String memKey = null;
String extraClassPath = null;
// Master, Worker, HistoryServer, ExternalShuffleService, MesosClusterDispatcher use
// SPARK_DAEMON_JAVA_OPTS (and specific opts) + SPARK_DAEMON_MEMORY.
if (className.equals("org.apache.spark.deploy.master.Master")) {
javaOptsKeys.add("SPARK_DAEMON_JAVA_OPTS");
javaOptsKeys.add("SPARK_MASTER_OPTS");
memKey = "SPARK_DAEMON_MEMORY";
} else if (className.equals("org.apache.spark.deploy.worker.Worker")) {
javaOptsKeys.add("SPARK_DAEMON_JAVA_OPTS");
javaOptsKeys.add("SPARK_WORKER_OPTS");
memKey = "SPARK_DAEMON_MEMORY";
} else if (className.equals("org.apache.spark.deploy.history.HistoryServer")) {
javaOptsKeys.add("SPARK_DAEMON_JAVA_OPTS");
javaOptsKeys.add("SPARK_HISTORY_OPTS");
memKey = "SPARK_DAEMON_MEMORY";
} else if (className.equals("org.apache.spark.executor.CoarseGrainedExecutorBackend")) {
javaOptsKeys.add("SPARK_JAVA_OPTS");
javaOptsKeys.add("SPARK_EXECUTOR_OPTS");
memKey = "SPARK_EXECUTOR_MEMORY";
} else if (className.equals("org.apache.spark.executor.MesosExecutorBackend")) {
javaOptsKeys.add("SPARK_EXECUTOR_OPTS");
memKey = "SPARK_EXECUTOR_MEMORY";
} else if (className.equals("org.apache.spark.deploy.mesos.MesosClusterDispatcher")) {
javaOptsKeys.add("SPARK_DAEMON_JAVA_OPTS");
} else if (className.equals("org.apache.spark.deploy.ExternalShuffleService") ||
className.equals("org.apache.spark.deploy.mesos.MesosExternalShuffleService")) {
javaOptsKeys.add("SPARK_DAEMON_JAVA_OPTS");
javaOptsKeys.add("SPARK_SHUFFLE_OPTS");
memKey = "SPARK_DAEMON_MEMORY";
} else if (className.startsWith("org.apache.spark.tools.")) {
String sparkHome = getSparkHome();
File toolsDir = new File(join(File.separator, sparkHome, "tools", "target",
"scala-" + getScalaVersion()));
checkState(toolsDir.isDirectory(), "Cannot find tools build directory.");
Pattern re = Pattern.compile("spark-tools_.*\\.jar");
for (File f : toolsDir.listFiles()) {
if (re.matcher(f.getName()).matches()) {
extraClassPath = f.getAbsolutePath();
break;
}
}
checkState(extraClassPath != null,
"Failed to find Spark Tools Jar in %s.\n" +
"You need to run \"build/sbt tools/package\" before running %s.",
toolsDir.getAbsolutePath(), className);
javaOptsKeys.add("SPARK_JAVA_OPTS");
} else {
javaOptsKeys.add("SPARK_JAVA_OPTS");
memKey = "SPARK_DRIVER_MEMORY";
}
List<String> cmd = buildJavaCommand(extraClassPath);
for (String key : javaOptsKeys) {
addOptionString(cmd, System.getenv(key));
}
String mem = firstNonEmpty(memKey != null ? System.getenv(memKey) : null, DEFAULT_MEM);
cmd.add("-Xms" + mem);
cmd.add("-Xmx" + mem);
addPermGenSizeOpt(cmd);
cmd.add(className);
cmd.addAll(classArgs);
return cmd;
}
}
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