Class: Humboldt::HadoopStatusFilter

Inherits:
Object
  • Object
show all
Defined in:
lib/humboldt/hadoop_status_filter.rb

Instance Method Summary collapse

Constructor Details

#initialize(hadoop_stderr, shell, silent) ⇒ HadoopStatusFilter

Returns a new instance of HadoopStatusFilter.



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# File 'lib/humboldt/hadoop_status_filter.rb', line 5

def initialize(hadoop_stderr, shell, silent)
  @hadoop_stderr = hadoop_stderr
  @shell = shell
  @silent = silent
  @counters = {}
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/humboldt/hadoop_status_filter.rb', line 12

def run
  counter_group = nil
  while line = @hadoop_stderr.gets
    if @counters_printing && (hadoop_log?(line) || line =~ /^\t+/)
      case line.chomp
      when /(?:JobClient:     |\t+)([^\t]+)=(\d+)$/
        if counter_group
          @counters[counter_group] ||= {}
          @counters[counter_group][$1.strip] = $2.to_i
        end
      when /(?:JobClient:   |\t+)([^\t]+)$/
        counter_group = $1.strip
      end
    elsif @error_printing && !hadoop_log?(line) && !ignore?(line)
      report_error(line)
    elsif ignore?(line)
      # do nothing
    else
      @counters_printing = false
      @error_printing = false
      case line
      when /map (\d+)% reduce (\d+)%/
        report_progress($1, $2)
      when /Counters: \d+/
        @counters_printing = true
      else
        unless hadoop_log?(line)
          @error_printing = true
          if line =~ /warning(!|:)/i
            @error_type = :warning
          else
            @error_type = :error
          end
          report_error(line)
        end
      end
    end
    @shell.say(line.chomp, :red) unless @silent
  end
  print_counters_table
end