total_memory = attrib?("memorysize")
if total_memory
  if total_memory =~ /MB$/
    total_memory.gsub!(/ MB/, '')
    total_memory = total_memory.to_f
  else
    total_memory.gsub!(/ GB/, '')
    total_memory = total_memory.to_f * 1024
  end
  buffer_pool_size = total_memory * 0.75 
  buffer_pool_size = buffer_pool_size.to_i
  add_attrib("innodb_buffer_pool_size", buffer_pool_size.to_s + "M") unless attrib?("innodb_buffer_pool_size")
end