Cancel restore snapshot

[ELJIE]

hello, i am doing automation tests on snapshot restore.
I wish I could stop a restoration that is underway.
When I execute the following command:
GET / _tasks / taskID
I have the return indicating the id and the action of my task:
"tasks": { "taskID": { "node": "Node1", "id": 427761143, "type": "transport", "action": "cluster: admin / snapshot / restore", "start_time_in_millis": 1585209521425, "running_time_in_nanos": 10418788830868 }

then when launching a cancellation:
POST / _tasks / taskID / _cancel
I have the following message:
"reason": "task [taskID] doesn't support cancellation
How to stop a restore without removing the snapshot?

[DavidTurner]

You should be able to stop the restore by deleting the index that's being restored.

[ELJIE]

Thanks to respond to me

Unfortunately when i delete the index
delete /index-car
The index is deleted and it is not restored
However the other snapshot index continue their restoration

[DavidTurner]

Yes, if you want to cancel the restoration of multiple indices you must delete them all.

[ELJIE]

Yes,
this means that I have to wait until the restoration of each index is done
and then I can delete the indexes

but I cannot use this recipe because I have too many data in the index

[DavidTurner]

I don't think that's true, I think you can delete the index while it's being restored. There is no need to wait for it to be fully restored.

[ELJIE]

Yes the recipe works
You have to adapt a bit to recover the index being restored first and then delete it
I have these steps scripted
thank you