How to use

getConf

method

in

org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor

/**
 * Return the default container log directory permissions.
 *
 * @return the default container log directory permissions
 */
@VisibleForTesting
public String getLogDirPermissions() {
 if (this.logDirPermissions==null) {
  this.logDirPermissions = getConf().get(
    YarnConfiguration.NM_DEFAULT_CONTAINER_EXECUTOR_LOG_DIRS_PERMISSIONS,
    YarnConfiguration.NM_DEFAULT_CONTAINER_EXECUTOR_LOG_DIRS_PERMISSIONS_DEFAULT);
 }
 return this.logDirPermissions;
}

protected CommandExecutor buildCommandExecutor(String wrapperScriptPath, 
  String containerIdStr, String user, Path pidFile, Resource resource,
  File wordDir, Map<String, String> environment)
    throws IOException {
 
 String[] command = getRunCommand(wrapperScriptPath,
   containerIdStr, user, pidFile, this.getConf(), resource);
  LOG.info("launchContainer: " + Arrays.toString(command));
  return new ShellCommandExecutor(
    command,
    wordDir,
    environment,
    0L,
    false);
}

protected CommandExecutor buildCommandExecutor(String wrapperScriptPath, 
  String containerIdStr, String user, Path pidFile, Resource resource,
  File wordDir, Map<String, String> environment)
    throws IOException {
 
 String[] command = getRunCommand(wrapperScriptPath,
   containerIdStr, user, pidFile, this.getConf(), resource);
  LOG.info("launchContainer: " + Arrays.toString(command));
  return new ShellCommandExecutor(
    command,
    wordDir,
    environment,
    0L,
    false);
}

protected CommandExecutor buildCommandExecutor(String wrapperScriptPath, 
  String containerIdStr, String user, Path pidFile, Resource resource,
  File wordDir, Map<String, String> environment)
    throws IOException {
 
 String[] command = getRunCommand(wrapperScriptPath,
   containerIdStr, user, pidFile, this.getConf(), resource);
  LOG.info("launchContainer: " + Arrays.toString(command));
  return new ShellCommandExecutor(
    command,
    wordDir,
    environment,
    0L,
    false);
}

/**
 * Create a new {@link ShellCommandExecutor} using the parameters.
 *
 * @param wrapperScriptPath the path to the script to execute
 * @param containerIdStr the container ID
 * @param user the application owner's username
 * @param pidFile the path to the container's PID file
 * @param resource this parameter controls memory and CPU limits.
 * @param workDir If not-null, specifies the directory which should be set
 * as the current working directory for the command. If null,
 * the current working directory is not modified.
 * @param environment the container environment
 * @return the new {@link ShellCommandExecutor}
 * @see ShellCommandExecutor
 */
protected CommandExecutor buildCommandExecutor(String wrapperScriptPath, 
  String containerIdStr, String user, Path pidFile, Resource resource,
  File workDir, Map<String, String> environment) {
 
 String[] command = getRunCommand(wrapperScriptPath,
   containerIdStr, user, pidFile, this.getConf(), resource);
  LOG.info("launchContainer: " + Arrays.toString(command));
  return new ShellCommandExecutor(
    command,
    workDir,
    environment,
    0L,
    false);
}

@Private
@VisibleForTesting
protected ContainerLocalizer createContainerLocalizer(String user,
  String appId, String locId, List<String> localDirs,
  FileContext localizerFc, String userFolder) throws IOException {
 ContainerLocalizer localizer =
   new ContainerLocalizer(localizerFc, user, appId, locId,
     getPaths(localDirs),
     RecordFactoryProvider.getRecordFactory(getConf()), userFolder);
 return localizer;
}

/**
 * Create a new {@link ContainerLocalizer} instance.
 *
 * @param user the user who owns the job for which the localization is being
 * run
 * @param appId the ID of the application for which the localization is being
 * run
 * @param locId the ID of the container for which the localization is being
 * run
 * @param localDirs a list of directories to use as destinations for the
 * localization
 * @param localizerFc the {@link FileContext} to use when localizing files
 * @return the new {@link ContainerLocalizer} instance
 * @throws IOException if {@code user} or {@code locId} is {@code null} or if
 * the container localizer has an initialization failure
 */
@Private
@VisibleForTesting
protected ContainerLocalizer createContainerLocalizer(String user,
  String appId, String locId, List<String> localDirs,
  FileContext localizerFc) throws IOException {
 ContainerLocalizer localizer =
   new ContainerLocalizer(localizerFc, user, appId, locId,
     getPaths(localDirs),
     RecordFactoryProvider.getRecordFactory(getConf()));
 return localizer;
}

localDirs, super.getConf());

@Override
public void startLocalizer(Path nmPrivateContainerTokensPath,
  InetSocketAddress nmAddr, String user, String appId, String locId,
  LocalDirsHandlerService dirsHandler)
  throws IOException, InterruptedException {
 List<String> localDirs = dirsHandler.getLocalDirs();
 List<String> logDirs = dirsHandler.getLogDirs();
 
 createUserLocalDirs(localDirs, user);
 createUserCacheDirs(localDirs, user);
 createAppDirs(localDirs, user, appId);
 createAppLogDirs(appId, logDirs, user);
 // randomly choose the local directory
 Path appStorageDir = getWorkingDir(localDirs, user, appId);
 String tokenFn = String.format(ContainerLocalizer.TOKEN_FILE_NAME_FMT, locId);
 Path tokenDst = new Path(appStorageDir, tokenFn);
 copyFile(nmPrivateContainerTokensPath, tokenDst, user);
 LOG.info("Copying from " + nmPrivateContainerTokensPath + " to " + tokenDst);
 FileContext localizerFc = FileContext.getFileContext(
   lfs.getDefaultFileSystem(), getConf());
 localizerFc.setUMask(lfs.getUMask());
 localizerFc.setWorkingDirectory(appStorageDir);
 LOG.info("Localizer CWD set to " + appStorageDir + " = " 
   + localizerFc.getWorkingDirectory());
 ContainerLocalizer localizer =
   new ContainerLocalizer(localizerFc, user, appId, locId, 
     getPaths(localDirs), RecordFactoryProvider.getRecordFactory(getConf()));
 // TODO: DO it over RPC for maintaining similarity?
 localizer.runLocalization(nmAddr);
}

@Override
public void startLocalizer(Path nmPrivateContainerTokensPath,
  InetSocketAddress nmAddr, String user, String appId, String locId,
  LocalDirsHandlerService dirsHandler)
  throws IOException, InterruptedException {
 List<String> localDirs = dirsHandler.getLocalDirs();
 List<String> logDirs = dirsHandler.getLogDirs();
 
 createUserLocalDirs(localDirs, user);
 createUserCacheDirs(localDirs, user);
 createAppDirs(localDirs, user, appId);
 createAppLogDirs(appId, logDirs, user);
 // randomly choose the local directory
 Path appStorageDir = getWorkingDir(localDirs, user, appId);
 String tokenFn = String.format(ContainerLocalizer.TOKEN_FILE_NAME_FMT, locId);
 Path tokenDst = new Path(appStorageDir, tokenFn);
 copyFile(nmPrivateContainerTokensPath, tokenDst, user);
 LOG.info("Copying from " + nmPrivateContainerTokensPath + " to " + tokenDst);
 FileContext localizerFc = FileContext.getFileContext(
   lfs.getDefaultFileSystem(), getConf());
 localizerFc.setUMask(lfs.getUMask());
 localizerFc.setWorkingDirectory(appStorageDir);
 LOG.info("Localizer CWD set to " + appStorageDir + " = " 
   + localizerFc.getWorkingDirectory());
 ContainerLocalizer localizer =
   new ContainerLocalizer(localizerFc, user, appId, locId, 
     getPaths(localDirs), RecordFactoryProvider.getRecordFactory(getConf()));
 // TODO: DO it over RPC for maintaining similarity?
 localizer.runLocalization(nmAddr);
}

  FileContext.getFileContext(lfs.getDefaultFileSystem(), getConf());
localizerFc.setUMask(lfs.getUMask());
localizerFc.setWorkingDirectory(appStorageDir);

  lfs.getDefaultFileSystem(), getConf());
localizerFc.setUMask(lfs.getUMask());
localizerFc.setWorkingDirectory(appStorageDir);