while true do
 local task_in_queue = queue.tube.task_queue:take(1)
 if task_in_queue ~= nil then
  local task
  -- Получаем описание задания
  local done = true
  local delay = 0
  if task ~= nil then
   log.info('Fiber #%d: Work started for task %d with status %d', fiber_id, task.id_task, task.id_status)
   -- провести начальную проверку и назначить аккаунт
   done, delay = some_work(task)
  end
  if done then
   queue.tube.task_queue:ack(task_in_queue[1])
  else
   log.info('Put task back to queue with delay %d', delay)
   queue.tube.task_queue:release(task_in_queue[1], {delay=delay})
  end
 end
 fiber.sleep(1)
 -- Проверить необходимость остановки
 local f = box.space.workers:get{fiber_id}
 if f == nil or f[2] == true then
  break
 end
end