Module: HadoopConfiguration

Defined in:
lib/mandy/configuration/hadoop_configuration.rb

Instance Method Summary collapse

Instance Method Details

#check_home ⇒ Object 



2
3
4
5
6
7
8
9
10
 
# File 'lib/mandy/configuration/hadoop_configuration.rb', line 2

def check_home
  hadoop_home = `echo $HADOOP_HOME`.chomp
  if hadoop_home== ''
    puts "You need to set the HADOOP_HOME environment variable to point to your hadoop install    :("
    puts "Try setting 'export HADOOP_HOME=/my/hadoop/path' in your ~/.profile maybe?"
    exit(1)
  end
  hadoop_home
end

#check_home_and_version ⇒ Object 



24
25
26
27
 
# File 'lib/mandy/configuration/hadoop_configuration.rb', line 24

def check_home_and_version
  check_home
  check_version
end

#check_version ⇒ Object 



12
13
14
15
16
17
18
19
20
21
22
 
# File 'lib/mandy/configuration/hadoop_configuration.rb', line 12

def check_version
  hadoop_version = `$HADOOP_HOME/bin/hadoop version 2>&1`

  if hadoop_version =~ /No such file or directory/
    puts("Mandy failed to find Hadoop in #{check_home}     :(")
    puts
    puts hadoop_version
    exit(1)
  end
  hadoop_version
end