cleanup-hadoop-userlogs.rb

#!/usr/bin/env ruby

require 'fileutils'

Dir.chdir("/var/log/hadoop/userlogs") do
  Dir.glob("attempt_2*") do |dir|
    next unless File.readlines("#{dir}/syslog").last.match(/Task.*done/)
    FileUtils.rm_rf("/var/log/hadoop/userlogs/#{dir}")
  end
end