How to use

getApplicationDir

method

in

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

/**
 * Initialize the local directories for a particular user.
 * <ul>
 * <li>$local.dir/usercache/$user/appcache/$appid</li>
 * </ul>
 * @param localDirs 
 */
void createAppDirs(List<String> localDirs, String user, String appId, String userFolder)
  throws IOException {
 boolean initAppDirStatus = false;
 FsPermission appperms = new FsPermission(APPDIR_PERM);
 for (String localDir : localDirs) {
  Path fullAppDir = getApplicationDir(new Path(localDir), userFolder, appId);
  // create $local.dir/usercache/$user/appcache/$appId
  try {
   createDir(fullAppDir, appperms, true, user);
   initAppDirStatus = true;
  } catch (IOException e) {
   LOG.warn("Unable to create app directory " + fullAppDir.toString(), e);
  }
 }
 if (!initAppDirStatus) {
  throw new IOException("Not able to initialize app directories "
    + "in any of the configured local directories for app "
    + appId.toString());
 }
}

/**
 * Initialize the local directories for a particular user.
 * <ul>
 * <li>$local.dir/usercache/$user/appcache/$appid</li>
 * </ul>
 * @param localDirs 
 */
void createAppDirs(List<String> localDirs, String user, String appId)
  throws IOException {
 boolean initAppDirStatus = false;
 FsPermission appperms = new FsPermission(APPDIR_PERM);
 for (String localDir : localDirs) {
  Path fullAppDir = getApplicationDir(new Path(localDir), user, appId);
  // create $local.dir/usercache/$user/appcache/$appId
  try {
   createDir(fullAppDir, appperms, true, user);
   initAppDirStatus = true;
  } catch (IOException e) {
   LOG.warn("Unable to create app directory " + fullAppDir.toString(), e);
  }
 }
 if (!initAppDirStatus) {
  throw new IOException("Not able to initialize app directories "
    + "in any of the configured local directories for app "
    + appId.toString());
 }
}

/**
 * Initialize the local directories for a particular user.
 * <ul>
 * <li>$local.dir/usercache/$user/appcache/$appid</li>
 * </ul>
 * @param localDirs 
 */
void createAppDirs(List<String> localDirs, String user, String appId)
  throws IOException {
 boolean initAppDirStatus = false;
 FsPermission appperms = new FsPermission(APPDIR_PERM);
 for (String localDir : localDirs) {
  Path fullAppDir = getApplicationDir(new Path(localDir), user, appId);
  // create $local.dir/usercache/$user/appcache/$appId
  try {
   createDir(fullAppDir, appperms, true, user);
   initAppDirStatus = true;
  } catch (IOException e) {
   LOG.warn("Unable to create app directory " + fullAppDir.toString(), e);
  }
 }
 if (!initAppDirStatus) {
  throw new IOException("Not able to initialize app directories "
    + "in any of the configured local directories for app "
    + appId.toString());
 }
}

FsPermission appperms = new FsPermission(APPDIR_PERM);
for (String localDir : localDirs) {
 Path fullAppDir = getApplicationDir(new Path(localDir), user, appId);

 Path curBase = getApplicationDir(new Path(localDir),
   user, appId);
 long space = 0L;
 randomPosition -= availableOnDisk[dir++];
appStorageDir = getApplicationDir(new Path(localDirs.get(dir)),
  user, appId);

 Path curBase = getApplicationDir(new Path(localDir),
   user, appId);
 long space = 0L;
 randomPosition -= availableOnDisk[dir++];
appStorageDir = getApplicationDir(new Path(localDirs.get(dir)),
  user, appId);

 Path curBase = getApplicationDir(new Path(localDir),
   userFolder, appId);
 long space = 0L;
 randomPosition -= availableOnDisk[dir++];
appStorageDir = getApplicationDir(new Path(localDirs.get(dir)),
  userFolder, appId);

 Path curBase = getApplicationDir(new Path(localDir), user, appId);
 long space = 0L;
 try {
int dir = pickDirectory(randomPosition, availableOnDisk);
return getApplicationDir(new Path(localDirs.get(dir)), user, appId);