class_docstr: Implementation of some common hadoop operations.
  
      
code: def __init__(self, hadoop_bin, fs_name, fs_ugi):
      self.hadoop_bin = hadoop_bin
      self.fs_name = fs_name
      self.fs_ugi = fs_ugi
  
imports: import os
  import sys
  import numpy
  import json
  import io
  from subprocess import Popen, PIPE
label_desc: Use image node_id 1 to create a new HadoopUtil object from inherited base classes: object with example: obj = HadoopUtil(hadoop_bin, fs_name, fs_ugi)