Hi @alex.grinko ,
Thanks for the feedback, at the moment the delete node option is only available for Offline nodes.
While a node that is no longer has its data available on a parent node it will still be identified as Stale, the goal was to ensure the data would be available for longer on these ephemeral/spot nodes that go on and off quickly.
We understand that there could be cases that as per user choice it should be possible to allow the deletion of them. We have this Feature Request to track this [Feat]: ability to delete stale or live nodes · Issue #690 · netdata/netdata-cloud · GitHub in case you want to follow its progress.
Regards,
Hugo