Dump Riak Bitcask data locally

dump_bitcask_data.rb

require 'rubygems'
require 'bitcask'
require 'bert'
require 'fileutils'
require 'json'

bitcask_dir = '/home/nitish/downloads/riak/rel/riak/data/bitcask/'
dump_dir = '/home/nitish/bitcask_dump/'
Dir.entries(bitcask_dir).each do |bitcask_file|
        next if bitcask_file =~ /\A\./
        b = Bitcask.new File.join(bitcask_dir, bitcask_file)
        b.data_files.each do |data_file|
          data_file.each do |entry|
            next if entry.value == Bitcask::TOMBSTONE
            bucket, key = BERT.decode entry.key
            value = BERT.decode entry.value
            bucket_dir = File.join(dump_dir, bucket)
            FileUtils.mkdir_p(bucket_dir)
            File.open(File.join(bucket_dir,bitcask_file), 'a+') do |out|
                #out.write value.to_json
                    out.write "#{key}\t#{value[-1]}\n"
            end
          end
        end
end