Scale down cluster

Users Dgraph
3

Thanks for reply.
Concept of replication factor is familiar to me.
What do you mean by “remove node before anything”? And which directories delete?
Zero follower nodes complain about alpha(deleted) from new group.

E0403 10:49:47.730246      15 pool.go:311] CONN: Unable to connect with alpha4:7080 : rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dial
ing dial tcp: lookup alpha4 on 10.89.0.1:53: no such host"

Zero leader doesn’t complain about alpha. Only info about skipping snapshot for unwanted group.

I0403 10:38:26.818905      17 raft.go:807] Skipping creating a snapshot. Num groups: 2, Num checkpoints: 1

Output from state
here is group which one i want to completely delte

    "2": {
      "members": {},
      "tablets": {},
      "snapshotTs": "0",
      "checksum": "0",
      "checkpointTs": "0"
    }
  },

Here alpha i deleted

  "maxRaftId": "4",
  "removed": [
    {
      "id": "4",
      "groupId": 2,
      "addr": "alpha4:7080",
      "leader": true,
      "amDead": false,
      "lastUpdate": "1680071246",
      "learner": false,
      "clusterInfoOnly": false,
      "forceGroupId": false
    }
  ],

Other alphas with id 1,2,3 attached to group “1”
Three zeros attached to group “0”