Tasks - add a max_duration field

[cedricfrancoys]

Tasks - add a max_duration field

In some situations, a thread does not respond (a process runs for several hours) and, if there are tasks that require exclusive execution, they are put on hold.

Example:

• Scenario where there is a critical error (PHP syntax or other): the task is created, the controller is called, the DB is modified (task marked as running), but the task never returns to idle.

Solution: add a max_duration or max_exec_duration field.
Beyond the allowed time, the associated PHP thread is killed and an alert is issued (in the targeted task logs).