Ejemplo n.º 1
0
  private List<String> buildPySparkShellCommand(Map<String, String> env) throws IOException {
    // For backwards compatibility, if a script is specified in
    // the pyspark command line, then run it using spark-submit.
    if (!appArgs.isEmpty() && appArgs.get(0).endsWith(".py")) {
      System.err.println(
          "Running python applications through 'pyspark' is not supported as of Spark 2.0.\n"
              + "Use ./bin/spark-submit <python file>");
      System.exit(-1);
    }

    checkArgument(appArgs.isEmpty(), "pyspark does not support any application options.");

    // When launching the pyspark shell, the spark-submit arguments should be stored in the
    // PYSPARK_SUBMIT_ARGS env variable.
    constructEnvVarArgs(env, "PYSPARK_SUBMIT_ARGS");

    // The executable is the PYSPARK_DRIVER_PYTHON env variable set by the pyspark script,
    // followed by PYSPARK_DRIVER_PYTHON_OPTS.
    List<String> pyargs = new ArrayList<>();
    pyargs.add(firstNonEmpty(System.getenv("PYSPARK_DRIVER_PYTHON"), "python"));
    String pyOpts = System.getenv("PYSPARK_DRIVER_PYTHON_OPTS");
    if (!isEmpty(pyOpts)) {
      pyargs.addAll(parseOptionString(pyOpts));
    }

    return pyargs;
  }
  /**
   * Builds a list of arguments to run java.
   *
   * <p>This method finds the java executable to use and appends JVM-specific options for running a
   * class with Spark in the classpath. It also loads options from the "java-opts" file in the
   * configuration directory being used.
   *
   * <p>Callers should still add at least the class to run, as well as any arguments to pass to the
   * class.
   */
  List<String> buildJavaCommand(String extraClassPath) throws IOException {
    List<String> cmd = new ArrayList<String>();
    String envJavaHome;

    if (javaHome != null) {
      cmd.add(join(File.separator, javaHome, "bin", "java"));
    } else if ((envJavaHome = System.getenv("JAVA_HOME")) != null) {
      cmd.add(join(File.separator, envJavaHome, "bin", "java"));
    } else {
      cmd.add(join(File.separator, System.getProperty("java.home"), "bin", "java"));
    }

    // Load extra JAVA_OPTS from conf/java-opts, if it exists.
    File javaOpts = new File(join(File.separator, getConfDir(), "java-opts"));
    if (javaOpts.isFile()) {
      BufferedReader br =
          new BufferedReader(new InputStreamReader(new FileInputStream(javaOpts), "UTF-8"));
      try {
        String line;
        while ((line = br.readLine()) != null) {
          addOptionString(cmd, line);
        }
      } finally {
        br.close();
      }
    }

    cmd.add("-cp");
    cmd.add(join(File.pathSeparator, buildClassPath(extraClassPath)));
    return cmd;
  }
Ejemplo n.º 3
0
  private List<String> buildSparkRCommand(Map<String, String> env) throws IOException {
    if (!appArgs.isEmpty() && appArgs.get(0).endsWith(".R")) {
      System.err.println(
          "Running R applications through 'sparkR' is not supported as of Spark 2.0.\n"
              + "Use ./bin/spark-submit <R file>");
      System.exit(-1);
    }
    // When launching the SparkR shell, store the spark-submit arguments in the SPARKR_SUBMIT_ARGS
    // env variable.
    constructEnvVarArgs(env, "SPARKR_SUBMIT_ARGS");

    // Set shell.R as R_PROFILE_USER to load the SparkR package when the shell comes up.
    String sparkHome = System.getenv("SPARK_HOME");
    env.put(
        "R_PROFILE_USER",
        join(File.separator, sparkHome, "R", "lib", "SparkR", "profile", "shell.R"));

    List<String> args = new ArrayList<>();
    args.add(firstNonEmpty(System.getenv("SPARKR_DRIVER_R"), "R"));
    return args;
  }
Ejemplo n.º 4
0
  private List<String> buildSparkSubmitCommand(Map<String, String> env) throws IOException {
    // Load the properties file and check whether spark-submit will be running the app's driver
    // or just launching a cluster app. When running the driver, the JVM's argument will be
    // modified to cover the driver's configuration.
    Map<String, String> config = getEffectiveConfig();
    boolean isClientMode = isClientMode(config);
    String extraClassPath = isClientMode ? config.get(SparkLauncher.DRIVER_EXTRA_CLASSPATH) : null;

    List<String> cmd = buildJavaCommand(extraClassPath);
    // Take Thrift Server as daemon
    if (isThriftServer(mainClass)) {
      addOptionString(cmd, System.getenv("SPARK_DAEMON_JAVA_OPTS"));
    }
    addOptionString(cmd, System.getenv("SPARK_SUBMIT_OPTS"));
    addOptionString(cmd, System.getenv("SPARK_JAVA_OPTS"));

    if (isClientMode) {
      // Figuring out where the memory value come from is a little tricky due to precedence.
      // Precedence is observed in the following order:
      // - explicit configuration (setConf()), which also covers --driver-memory cli argument.
      // - properties file.
      // - SPARK_DRIVER_MEMORY env variable
      // - SPARK_MEM env variable
      // - default value (1g)
      // Take Thrift Server as daemon
      String tsMemory = isThriftServer(mainClass) ? System.getenv("SPARK_DAEMON_MEMORY") : null;
      String memory =
          firstNonEmpty(
              tsMemory,
              config.get(SparkLauncher.DRIVER_MEMORY),
              System.getenv("SPARK_DRIVER_MEMORY"),
              System.getenv("SPARK_MEM"),
              DEFAULT_MEM);
      cmd.add("-Xms" + memory);
      cmd.add("-Xmx" + memory);
      addOptionString(cmd, config.get(SparkLauncher.DRIVER_EXTRA_JAVA_OPTIONS));
      mergeEnvPathList(
          env, getLibPathEnvName(), config.get(SparkLauncher.DRIVER_EXTRA_LIBRARY_PATH));
    }

    addPermGenSizeOpt(cmd);
    cmd.add("org.apache.spark.deploy.SparkSubmit");
    cmd.addAll(buildSparkSubmitArgs());
    return cmd;
  }
 String getenv(String key) {
   return firstNonEmpty(childEnv.get(key), System.getenv(key));
 }