Too many internal problems

Moved from ZBX-16925.

Storage period for internal events is configured to 1 day, but there is also alot of unsupported items. So houskeeper will not delete ones that are in problem state (still unsupported). It might make sense to review internal event storage. It is even possible to remove the generation of recovery events for internal data elements for the sake of being able to delete them after a set period (1day)?
In case of impossibility to get rid of unsupported data elements - it is more important to be able to control the size of the event tables than to be able to notify about the item (trigger\rule) status change to supported
At least this requires the note in the documentation.