code: def set_hadoop_err(err_log="./hadoop_err.log"):
      """set hadoop err file"""
      global ERR_LOG
      ERR_LOG = err_log
  
imports: import os
  import sys
  import json
  import time
  import math
  import collections
  import numpy
label_desc: Use image node_id 2 for calling a global function with example usage: set_hadoop_err(err_log) without return types