* The last active time of your worker unit will be updated when a task is submitted to a worker or when a worker terminate a task.
* If killBehavior is set to HARD this value represents also the timeout for the tasks that you submit to the pool,
* when this timeout expires your tasks is interrupted and the worker is killed if is not part of the minimum size of the pool.
* The last active time of your worker unit will be updated when a task is submitted to a worker or when a worker terminate a task.
* If killBehavior is set to HARD this value represents also the timeout for the tasks that you submit to the pool,
* when this timeout expires your tasks is interrupted and the worker is killed if is not part of the minimum size of the pool.