public static TaskGroup createTaskGroup(boolean ignoreSubTasksInTaskMonitor, String description) {
    return new TaskGroup(ignoreSubTasksInTaskMonitor, description);
  }
Create a task group which contains a series of monitored tasks for users to inquire about the
status
@param ignoreSubTasksInTaskMonitor whether to ignore to track(e.g. show/clear/expire) the task
                                   in the {@link TaskMonitor}
@param description                 description of the status
@return a group of monitored tasks
hbase-server/src/main/java/org/apache/hadoop/hbase/monitoring/TaskMonitor.java