How do I Alpha shrink

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My environment configuration: 3 zero nodes, 9 Alpha nodes, 3 replicas, now 3 shards, eks environment

My requirements: Shrink Alpha nodes from 9 to 6 and shards to 2

The project I carried out:

  1. Directly change the Alpha replica to 6 and automatically update the latest configuration to eks. The three nodes alpha-6 alpha-7 alpha-8 are successfully exited

  2. The logs of zero and Alpha nodes keep requesting that the Alpha node has exited, but the state interface still displays that the exited node is online

  3. Run the remoNode interface on the zero leader node to remove the exited Alpha node

  4. The removal is successful. The state information is as follows:

{
    "counter": "1707162",
    "groups": {
        "1": {
            "members": {
                "1": {
                    "id": "1",
                    "groupId": 1,
                    "addr": "dgraph-grey-alpha-3.dgraph-grey-alpha-headless.dev-3363-dgraph-test.svc.cluster.local:7080",
                    "leader": false,
                    "amDead": false,
                    "lastUpdate": "1722478797",
                    "learner": false,
                    "clusterInfoOnly": false,
                    "forceGroupId": false
                },
                "2": {
                    "id": "2",
                    "groupId": 1,
                    "addr": "dgraph-grey-alpha-2.dgraph-grey-alpha-headless.dev-3363-dgraph-test.svc.cluster.local:7080",
                    "leader": true,
                    "amDead": false,
                    "lastUpdate": "1722482641",
                    "learner": false,
                    "clusterInfoOnly": false,
                    "forceGroupId": false
                }
            },
            "tablets": {},
            "snapshotTs": "108843074",
            "checksum": "5998688028376174804",
            "checkpointTs": "0"
        },
        "2": {
            "members": {
                "5": {
                    "id": "5",
                    "groupId": 2,
                    "addr": "dgraph-grey-alpha-5.dgraph-grey-alpha-headless.dev-3363-dgraph-test.svc.cluster.local:7080",
                    "leader": true,
                    "amDead": false,
                    "lastUpdate": "1722494233",
                    "learner": false,
                    "clusterInfoOnly": false,
                    "forceGroupId": false
                },
                "6": {
                    "id": "6",
                    "groupId": 2,
                    "addr": "dgraph-grey-alpha-1.dgraph-grey-alpha-headless.dev-3363-dgraph-test.svc.cluster.local:7080",
                    "leader": false,
                    "amDead": false,
                    "lastUpdate": "1722494212",
                    "learner": false,
                    "clusterInfoOnly": false,
                    "forceGroupId": false
                }
            },
            "tablets": {},
            "snapshotTs": "108817818",
            "checksum": "17890955793598434582",
            "checkpointTs": "0"
        },
        "3": {
            "members": {
                "7": {
                    "id": "7",
                    "groupId": 3,
                    "addr": "dgraph-grey-alpha-0.dgraph-grey-alpha-headless.dev-3363-dgraph-test.svc.cluster.local:7080",
                    "leader": false,
                    "amDead": false,
                    "lastUpdate": "1722410388",
                    "learner": false,
                    "clusterInfoOnly": false,
                    "forceGroupId": false
                },
                "8": {
                    "id": "8",
                    "groupId": 3,
                    "addr": "dgraph-grey-alpha-4.dgraph-grey-alpha-headless.dev-3363-dgraph-test.svc.cluster.local:7080",
                    "leader": true,
                    "amDead": false,
                    "lastUpdate": "1722479759",
                    "learner": false,
                    "clusterInfoOnly": false,
                    "forceGroupId": false
                }
            },
            "tablets": {},
            "snapshotTs": "108843074",
            "checksum": "14196656308467936795",
            "checkpointTs": "0"
        }
    },
    "zeros": {
        "1": {
            "id": "1",
            "groupId": 0,
            "addr": "dgraph-grey-zero-0.dgraph-grey-zero-headless.dev-3363-dgraph-test.svc.cluster.local:5080",
            "leader": false,
            "amDead": false,
            "lastUpdate": "0",
            "learner": false,
            "clusterInfoOnly": false,
            "forceGroupId": false
        },
        "2": {
            "id": "2",
            "groupId": 0,
            "addr": "dgraph-grey-zero-1.dgraph-grey-zero-headless.dev-3363-dgraph-test.svc.cluster.local:5080",
            "leader": true,
            "amDead": false,
            "lastUpdate": "0",
            "learner": false,
            "clusterInfoOnly": false,
            "forceGroupId": false
        },
        "3": {
            "id": "3",
            "groupId": 0,
            "addr": "dgraph-grey-zero-2.dgraph-grey-zero-headless.dev-3363-dgraph-test.svc.cluster.local:5080",
            "leader": false,
            "amDead": false,
            "lastUpdate": "0",
            "learner": false,
            "clusterInfoOnly": false,
            "forceGroupId": false
        }
    },
    "maxUID": "19680000",
    "maxTxnTs": "108890000",
    "maxNsID": "0",
    "maxRaftId": "9",
    "removed": [
        {
            "id": "9",
            "groupId": 3,
            "addr": "dgraph-grey-alpha-7.dgraph-grey-alpha-headless.dev-3363-dgraph-test.svc.cluster.local:7080",
            "leader": false,
            "amDead": false,
            "lastUpdate": "1722479759",
            "learner": false,
            "clusterInfoOnly": false,
            "forceGroupId": false
        },
        {
            "id": "4",
            "groupId": 2,
            "addr": "dgraph-grey-alpha-6.dgraph-grey-alpha-headless.dev-3363-dgraph-test.svc.cluster.local:7080",
            "leader": false,
            "amDead": false,
            "lastUpdate": "1722494228",
            "learner": false,
            "clusterInfoOnly": false,
            "forceGroupId": false
        },
        {
            "id": "3",
            "groupId": 1,
            "addr": "dgraph-grey-alpha-8.dgraph-grey-alpha-headless.dev-3363-dgraph-test.svc.cluster.local:7080",
            "leader": false,
            "amDead": false,
            "lastUpdate": "1722410532",
            "learner": false,
            "clusterInfoOnly": false,
            "forceGroupId": false
        }
    ],
    "cid": "47b6fafb-878b-4f5c-84f5-47114e05eba3",
    "license": null
}
  1. The zero log shows it continues to request the removed Alpha node.
    image
    image1235×414 84 KB

Why is this, or am I missing some steps, and how do I do Alpha node scaling properly?