It allows us to use raft::EntryType directly without obscure i32 tricks.

Georgy Moshkin authored 2 years ago and Georgy Moshkin committed 2 years ago

deactivation means that instance
- is demoted to learner (if it wasn't one already)
- is marked "inactive" so that it's ignored when determining
    the number of voters required for the cluster

Georgy Moshkin authored 2 years ago and Georgy Moshkin committed 2 years ago

Topology::diff, Topology::to_replace, etc. only store ids, so that
peer info is consistent