How to restart a Task.supervisor

If you have named your supervisor (see here Task.Supervisor — Elixir v1.12.3), you can use Process — Elixir v1.12.3 to kill that process using its name.
Since it’s already under a supervisor, it will be restarted.

Or if you just want to kill all children, use Task.Supervisor — Elixir v1.12.3 and kill all children, without restarting supervisor.

I have finally found Supervisor.stop( name_of_supervisor)

how would you do it with Process ?
kill all children is not possible since it is a stream

What do you mean by it’s a stream? What kind of stream? Is it infinite? Does it have some kind of pause/stop?

Streams are a wide topic, by just saying it’s a stream it can mean different things. Finite lists are also kind of streams.

using Task.Supervisor.async_stream_nolink which processes a list of tasks submitted in a streamed way for instance 6 by 6

Can you call Supervisor.stop on it?

In general, what are you trying to achieve? What kind of stream of data are you processing? Maybe there’s a different abstraction or package that would fit the job better?

list of tasks submitted in a streamed way for instance 6 by 6

How do you do this? Where do you get this stream from? Do you use Stream module to create a stream, then pass it to Task.Supervisor.async_stream_nolink?

What I’ve said was about the stream you give to the Task.Supervisor.async_stream_nolink, not the one it returns.

biglist is a list of records
EmailTaskSupervisor is the name of the Task.Supervisor, children of application
Sender and send_email are the module and the function inside called on each element of biglist

stream = Task.Supervisor.async_stream_nolink(
EmailTaskSupervisor,
biglist,
Sender,
:send_email,

)

to start the stream of tasks and be able to continue normal process

Task.start(fn -> Enum.to_list(stream) end)

Supervisor.stop is what I did finally, to restart, I resubmit a stream of remaining tasks that were not executed when I stopped the supervisor