[BUG] etcd scale-out pod role is null error: cluster ID mismatch

[JashBook]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. create cluster

apiVersion: apps.kubeblocks.io/v1
kind: Cluster
metadata:
  name: mongodb-zedvuh
  namespace: default
spec:
  clusterDef: mongodb
  topology: replicaset
  terminationPolicy: Delete
  componentSpecs:
    - name: mongodb
      serviceVersion: 4.4.29
      replicas: 3
      resources:
        limits:
          cpu: 100m
          memory: 0.5Gi
        requests:
          cpu: 100m
          memory: 0.5Gi
      volumeClaimTemplates:
        - name: data
          spec:
            storageClassName: 
            accessModes:
              - ReadWriteOnce
            resources:
              requests:
                storage: 20Gi

kubectl get cluster 
NAME          CLUSTER-DEFINITION   TERMINATION-POLICY   STATUS    AGE
etcd-eewrxk                        Delete               Running   51m

kbcli cluster list-instances etcd-eewrxk 
NAME                 NAMESPACE   CLUSTER       COMPONENT   STATUS    ROLE       ACCESSMODE   AZ               CPU(REQUEST/LIMIT)   MEMORY(REQUEST/LIMIT)   STORAGE     NODE                        CREATED-TIME                 
etcd-eewrxk-etcd-0   default     etcd-eewrxk   etcd        Running   leader                  cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:21Gi   192.168.0.37/192.168.0.37   Sep 03,2025 16:14 UTC+0800   
etcd-eewrxk-etcd-1   default     etcd-eewrxk   etcd        Running   follower                cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:21Gi   192.168.0.37/192.168.0.37   Sep 03,2025 16:14 UTC+0800   
etcd-eewrxk-etcd-2   default     etcd-eewrxk   etcd        Running   follower                cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:21Gi   192.168.0.37/192.168.0.37   Sep 03,2025 16:14 UTC+0800  

2. scale-out

kbcli cluster scale-out etcd-eewrxk --components etcd --replicas 1 --auto-approve
OpsRequest etcd-eewrxk-horizontalscaling-ccpmp created successfully, you can view the progress:
	kbcli cluster describe-ops etcd-eewrxk-horizontalscaling-ccpmp -n default

3. See error

kubectl get cluster etcd-eewrxk 
NAME          CLUSTER-DEFINITION   TERMINATION-POLICY   STATUS     AGE
etcd-eewrxk                        Delete               Updating   92m

➜  ~ kubectl get pod  
NAME                 READY   STATUS    RESTARTS   AGE
etcd-eewrxk-etcd-0   2/2     Running   0          93m
etcd-eewrxk-etcd-1   2/2     Running   0          92m
etcd-eewrxk-etcd-2   2/2     Running   0          92m
etcd-eewrxk-etcd-3   2/2     Running   0          40m

➜  ~ kubectl get ops
NAME                                  TYPE                CLUSTER       STATUS    PROGRESS   AGE
etcd-eewrxk-horizontalscaling-ccpmp   HorizontalScaling   etcd-eewrxk   Running   0/1        41m
etcd-eewrxk-volumeexpansion-pjcdk     VolumeExpansion     etcd-eewrxk   Succeed   3/3        90m

kbcli cluster list-instances etcd-eewrxk
NAME                 NAMESPACE   CLUSTER       COMPONENT   STATUS    ROLE       ACCESSMODE   AZ               CPU(REQUEST/LIMIT)   MEMORY(REQUEST/LIMIT)   STORAGE     NODE                        CREATED-TIME                 
etcd-eewrxk-etcd-0   default     etcd-eewrxk   etcd        Running   leader                  cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:21Gi   192.168.0.37/192.168.0.37   Sep 03,2025 16:14 UTC+0800   
etcd-eewrxk-etcd-1   default     etcd-eewrxk   etcd        Running   follower                cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:21Gi   192.168.0.37/192.168.0.37   Sep 03,2025 16:14 UTC+0800   
etcd-eewrxk-etcd-2   default     etcd-eewrxk   etcd        Running   follower                cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:21Gi   192.168.0.37/192.168.0.37   Sep 03,2025 16:14 UTC+0800   
etcd-eewrxk-etcd-3   default     etcd-eewrxk   etcd        Running   <none>                  cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:21Gi   192.168.0.37/192.168.0.37   Sep 03,2025 17:06 UTC+0800   

logs pod

kubectl logs etcd-eewrxk-etcd-3 --tail 20
Defaulted container "etcd" out of: etcd, kbagent, inject-bash (init), init-kbagent (init), kbagent-worker (init)
{"level":"warn","ts":"2025-09-03T09:48:48.530510Z","caller":"rafthttp/stream.go:652","msg":"request sent was ignored by remote peer due to cluster ID mismatch","remote-peer-id":"95d9be39c2616a56","remote-peer-cluster-id":"47c17342e3a1b4ec","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","error":"cluster ID mismatch"}
{"level":"warn","ts":"2025-09-03T09:48:48.613422Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"95d9be39c2616a56","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}
{"level":"warn","ts":"2025-09-03T09:48:48.613432Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"9a561d9e8f530bbc","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}
{"level":"warn","ts":"2025-09-03T09:48:48.613422Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"9a561d9e8f530bbc","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}
{"level":"warn","ts":"2025-09-03T09:48:48.613422Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"95d9be39c2616a56","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}
{"level":"warn","ts":"2025-09-03T09:48:48.613873Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"d0113665f403934f","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}
{"level":"warn","ts":"2025-09-03T09:48:48.613924Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"d0113665f403934f","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}
{"level":"warn","ts":"2025-09-03T09:48:48.619639Z","caller":"rafthttp/stream.go:652","msg":"request sent was ignored by remote peer due to cluster ID mismatch","remote-peer-id":"d0113665f403934f","remote-peer-cluster-id":"47c17342e3a1b4ec","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","error":"cluster ID mismatch"}
{"level":"warn","ts":"2025-09-03T09:48:48.619647Z","caller":"rafthttp/stream.go:652","msg":"request sent was ignored by remote peer due to cluster ID mismatch","remote-peer-id":"d0113665f403934f","remote-peer-cluster-id":"47c17342e3a1b4ec","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","error":"cluster ID mismatch"}
{"level":"warn","ts":"2025-09-03T09:48:48.619651Z","caller":"rafthttp/stream.go:652","msg":"request sent was ignored by remote peer due to cluster ID mismatch","remote-peer-id":"9a561d9e8f530bbc","remote-peer-cluster-id":"47c17342e3a1b4ec","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","error":"cluster ID mismatch"}
{"level":"warn","ts":"2025-09-03T09:48:48.630019Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"9a561d9e8f530bbc","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}
{"level":"warn","ts":"2025-09-03T09:48:48.630559Z","caller":"rafthttp/stream.go:652","msg":"request sent was ignored by remote peer due to cluster ID mismatch","remote-peer-id":"9a561d9e8f530bbc","remote-peer-cluster-id":"47c17342e3a1b4ec","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","error":"cluster ID mismatch"}
{"level":"warn","ts":"2025-09-03T09:48:48.630601Z","caller":"rafthttp/stream.go:652","msg":"request sent was ignored by remote peer due to cluster ID mismatch","remote-peer-id":"95d9be39c2616a56","remote-peer-cluster-id":"47c17342e3a1b4ec","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","error":"cluster ID mismatch"}
{"level":"warn","ts":"2025-09-03T09:48:48.630601Z","caller":"rafthttp/stream.go:652","msg":"request sent was ignored by remote peer due to cluster ID mismatch","remote-peer-id":"95d9be39c2616a56","remote-peer-cluster-id":"47c17342e3a1b4ec","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","error":"cluster ID mismatch"}
{"level":"warn","ts":"2025-09-03T09:48:48.713480Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"9a561d9e8f530bbc","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}
{"level":"warn","ts":"2025-09-03T09:48:48.713511Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"9a561d9e8f530bbc","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}
{"level":"warn","ts":"2025-09-03T09:48:48.713480Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"95d9be39c2616a56","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}
{"level":"warn","ts":"2025-09-03T09:48:48.713499Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"95d9be39c2616a56","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}
{"level":"warn","ts":"2025-09-03T09:48:48.713835Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"d0113665f403934f","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}
{"level":"warn","ts":"2025-09-03T09:48:48.713899Z","caller":"rafthttp/http.go:502","msg":"request cluster ID mismatch","local-member-id":"fca7465b681861c4","local-member-cluster-id":"966fded6707566d3","local-member-server-version":"3.6.1","local-member-server-minimum-cluster-version":"3.0.0","remote-peer-server-name":"d0113665f403934f","remote-peer-server-version":"3.6.1","remote-peer-server-minimum-cluster-version":"3.0.0","remote-peer-cluster-id":"47c17342e3a1b4ec"}

kubectl logs etcd-eewrxk-etcd-3 --tail 20 kbagent 
2025-09-03T09:06:20Z	INFO	create service Action	{"actions": "switchover,memberJoin,memberLeave,dataDump,dataLoad,roleProbe"}
2025-09-03T09:06:20Z	INFO	create service Probe	{"probes": "roleProbe"}
2025-09-03T09:06:20Z	INFO	create service Streaming	{"actions": "dataDump,dataLoad"}
2025-09-03T09:06:20Z	INFO	service Action started...
2025-09-03T09:06:20Z	INFO	service Probe started...
2025-09-03T09:06:20Z	INFO	service Streaming started...
2025-09-03T09:06:20Z	INFO	starting the HTTP server
2025-09-03T09:06:20Z	INFO	register service to server	{"service": "Action", "method": "POST", "uri": "/v1.0/action"}
2025-09-03T09:06:20Z	INFO	register service to server	{"service": "Probe", "method": "POST", "uri": "/v1.0/probe"}
2025-09-03T09:06:20Z	INFO	register service to server	{"service": "Streaming", "method": "POST", "uri": "/v1.0/streaming"}
2025-09-03T09:06:20Z	INFO	probe started	{"probe": "roleProbe", "config": {"instance":"etcd-eewrxk-etcd","action":"roleProbe"}}
2025-09-03T09:06:20Z	INFO	starting the streaming server
2025-09-03T09:06:20Z	INFO	send probe event	{"probe": "roleProbe", "probe": "roleProbe", "code": 0, "output": "", "message": ""}
2025-09-03T09:06:20Z	INFO	Action Executed	{"action": "memberJoin", "result": ""}
2025-09-03T09:06:20Z	INFO	HTTP API Called	{"user-agent": "Go-http-client/1.1", "method": "POST", "path": "/v1.0/action", "status code": 200, "cost": 13}

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