* SOFT: If current time - last active time is greater than `maxInactiveTime` option, but a task is still running then the worker will be not deleted.
* HARD: If last active time is greater than `maxInactiveTime` option, but a task is still running then the worker will be deleted.
* This option only apply to the newly created workers.
* SOFT: If current time - last active time is greater than `maxInactiveTime` option, but a task is still running then the worker will be not deleted.
* HARD: If last active time is greater than `maxInactiveTime` option, but a task is still running then the worker will be deleted.
* This option only apply to the newly created workers.