[BUG] etcd rollout has a probability of blocking

**Describe the bug**
A clear and concise description of what the bug is.
**2026-09-09T10:01:54.639Z	INFO	build error: requeue after: 1s as: [pod etcd-nfauvf-etcd-3: action: memberJoin, executed on pod: etcd-nfauvf-etcd-3, error: exit code: 1: failed: action failed some replicas have not joined: [etcd-nfauvf-etcd-3]]	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "683a8177-c771-461d-9c5b-97262b473463", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}**



**To Reproduce**
Steps to reproduce the behavior:
1. create cluster
```
apiVersion: apps.kubeblocks.io/v1
kind: Cluster
metadata:
  name: etcd-nfauvf
  namespace: default
spec:
  terminationPolicy: DoNotTerminate
  componentSpecs:
    - name: etcd
      componentDef: etcd-3-1.1.0-alpha.0
      serviceVersion: 3.5.6
      tls: false
      replicas: 3
      resources:
        requests:
          cpu: 100m
          memory: 0.5Gi
        limits:
          cpu: 100m
          memory: 0.5Gi
      persistentVolumeClaimRetentionPolicy:
        whenDeleted: Delete
      volumeClaimTemplates:
        - name: data
          spec:
            storageClassName: 
            accessModes:
              - ReadWriteOnce
            resources:
              requests:
                storage: 20Gi
  services:
    - name: client
      serviceName: client
      spec:
        type: NodePort
        ports:
          - port: 2379
            targetPort: 2379
      componentSelector: etcd
      roleSelector: leader
```
```
      `kbcli cluster list-instances etcd-nfauvf --namespace default `
    
NAME                 NAMESPACE   CLUSTER       COMPONENT   STATUS    ROLE       ACCESSMODE   AZ               CPU(REQUEST/LIMIT)   MEMORY(REQUEST/LIMIT)   STORAGE     NODE                          CREATED-TIME                 
etcd-nfauvf-etcd-0   default     etcd-nfauvf   etcd        Running   leader                  cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:20Gi   192.168.0.165/192.168.0.165   Sep 09,2026 17:51 UTC+0800   
etcd-nfauvf-etcd-1   default     etcd-nfauvf   etcd        Running   follower                cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:20Gi   192.168.0.207/192.168.0.207   Sep 09,2026 17:51 UTC+0800   
etcd-nfauvf-etcd-2   default     etcd-nfauvf   etcd        Running   follower                cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:20Gi   192.168.0.125/192.168.0.125   Sep 09,2026 17:51 UTC+0800 
```
2. rollout
```
apiVersion: apps.kubeblocks.io/v1alpha1
kind: Rollout
metadata:
  name: etcd-nfauvf-etcd-rollout-create-18618
  namespace: default
spec:
  clusterName: etcd-nfauvf
  components:
    - name: etcd
      compDef: etcd-3-1.1.0-alpha.0
      serviceVersion: "3.5.15"
      replicas: 1
      strategy:
        create:
          canary: true
          promotion:
            auto: true
            delaySeconds: 5
            scaleDownDelaySeconds: 30
      instanceMeta:
        canary:
          labels:
            traffic: canary
          annotations:
            rollout.apps.kubeblocks.io/version: "3.5.15"
```
```
kubectl get rollouts.apps.kubeblocks.io 
NAME                                        CLUSTER         REPLICAS   ROLLED-OUT   CANARY   STATE     AGE
etcd-nfauvf-etcd-rollout-create-18618       etcd-nfauvf     3          0            0        Rolling   11m
```
4. See error
```
kubectl get cluster etcd-nfauvf
NAME          CLUSTER-DEFINITION   TERMINATION-POLICY   STATUS     AGE
etcd-nfauvf                        DoNotTerminate       Updating   9m40s
➜  ~ 
➜  ~ kubectl get pod -l app.kubernetes.io/instance=etcd-nfauvf    
NAME                 READY   STATUS    RESTARTS        AGE
etcd-nfauvf-etcd-0   2/2     Running   0               9m46s
etcd-nfauvf-etcd-1   2/2     Running   0               9m28s
etcd-nfauvf-etcd-2   2/2     Running   0               9m7s
etcd-nfauvf-etcd-3   2/2     Running   1 (8m11s ago)   8m30s
➜  ~ 
➜  ~ kbcli cluster list-instances etcd-nfauvf 
NAME                 NAMESPACE   CLUSTER       COMPONENT   STATUS    ROLE       ACCESSMODE   AZ               CPU(REQUEST/LIMIT)   MEMORY(REQUEST/LIMIT)   STORAGE     NODE                          CREATED-TIME                 
etcd-nfauvf-etcd-0   default     etcd-nfauvf   etcd        Running   leader                  cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:20Gi   192.168.0.165/192.168.0.165   Sep 09,2026 17:51 UTC+0800   
etcd-nfauvf-etcd-1   default     etcd-nfauvf   etcd        Running   follower                cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:20Gi   192.168.0.207/192.168.0.207   Sep 09,2026 17:51 UTC+0800   
etcd-nfauvf-etcd-2   default     etcd-nfauvf   etcd        Running   follower                cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:20Gi   192.168.0.125/192.168.0.125   Sep 09,2026 17:51 UTC+0800   
etcd-nfauvf-etcd-3   default     etcd-nfauvf   etcd        Running   follower                cn-guangzhou-b   100m / 100m          512Mi / 512Mi           data:20Gi   192.168.0.207/192.168.0.207   Sep 09,2026 17:52 UTC+0800   
```
logs etcd3 previous
```
kubectl logs etcd-nfauvf-etcd-3 --tail 10 --previous 
Defaulted container "etcd" out of: etcd, kbagent, inject-bash (init), init-kbagent (init), kbagent-worker (init)
{"level":"info","ts":"2026-09-09T09:52:55.722341Z","caller":"etcdmain/etcd.go:73","msg":"Running: ","args":["etcd","--config-file","/var/run/etcd/etcd.conf"]}
{"level":"warn","ts":"2026-09-09T09:52:55.722360Z","caller":"embed/config.go:687","msg":"Running http and grpc server on single port. This is not recommended for production."}
{"level":"info","ts":"2026-09-09T09:52:55.722369Z","caller":"embed/etcd.go:128","msg":"configuring peer listeners","listen-peer-urls":["http://0.0.0.0:2380"]}
{"level":"info","ts":"2026-09-09T09:52:55.722457Z","caller":"embed/etcd.go:136","msg":"configuring client listeners","listen-client-urls":["http://0.0.0.0:2379"]}
{"level":"info","ts":"2026-09-09T09:52:55.722499Z","caller":"embed/etcd.go:310","msg":"starting an etcd server","etcd-version":"3.5.15","git-sha":"9a5533382","go-version":"go1.21.12","go-os":"linux","go-arch":"amd64","max-cpu-set":8,"max-cpu-available":8,"member-initialized":false,"name":"etcd-nfauvf-etcd-3","data-dir":"/var/run/etcd/default.etcd","wal-dir":"","wal-dir-dedicated":"","member-dir":"/var/run/etcd/default.etcd/member","force-new-cluster":false,"heartbeat-interval":"100ms","election-timeout":"1s","initial-election-tick-advance":true,"snapshot-count":10000,"max-wals":5,"max-snapshots":5,"snapshot-catchup-entries":5000,"initial-advertise-peer-urls":["http://etcd-nfauvf-etcd-3.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380"],"listen-peer-urls":["http://0.0.0.0:2380"],"advertise-client-urls":["http://etcd-nfauvf-etcd-3.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2379"],"listen-client-urls":["http://0.0.0.0:2379"],"listen-metrics-urls":[],"cors":["*"],"host-whitelist":["*"],"initial-cluster":"etcd-nfauvf-etcd-0=http://etcd-nfauvf-etcd-0.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380,etcd-nfauvf-etcd-1=http://etcd-nfauvf-etcd-1.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380,etcd-nfauvf-etcd-2=http://etcd-nfauvf-etcd-2.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380,etcd-nfauvf-etcd-3=http://etcd-nfauvf-etcd-3.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380","initial-cluster-state":"existing","initial-cluster-token":"etcd-nfauvf","quota-backend-bytes":2147483648,"max-request-bytes":1572864,"max-concurrent-streams":4294967295,"pre-vote":true,"initial-corrupt-check":false,"corrupt-check-time-interval":"0s","compact-check-time-enabled":false,"compact-check-time-interval":"1m0s","auto-compaction-mode":"periodic","auto-compaction-retention":"1h0m0s","auto-compaction-interval":"1h0m0s","discovery-url":"","discovery-proxy":"","downgrade-check-interval":"5s"}
{"level":"info","ts":"2026-09-09T09:52:55.724264Z","caller":"etcdserver/backend.go:81","msg":"opened backend db","path":"/var/run/etcd/default.etcd/member/snap/db","took":"1.274939ms"}
{"level":"info","ts":"2026-09-09T09:52:55.726946Z","caller":"embed/etcd.go:377","msg":"closing etcd server","name":"etcd-nfauvf-etcd-3","data-dir":"/var/run/etcd/default.etcd","advertise-peer-urls":["http://etcd-nfauvf-etcd-3.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380"],"advertise-client-urls":["http://etcd-nfauvf-etcd-3.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2379"]}
{"level":"info","ts":"2026-09-09T09:52:55.726970Z","caller":"embed/etcd.go:379","msg":"closed etcd server","name":"etcd-nfauvf-etcd-3","data-dir":"/var/run/etcd/default.etcd","advertise-peer-urls":["http://etcd-nfauvf-etcd-3.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380"],"advertise-client-urls":["http://etcd-nfauvf-etcd-3.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2379"]}
{"level":"warn","ts":"2026-09-09T09:52:55.726978Z","caller":"etcdmain/etcd.go:146","msg":"failed to start etcd","error":"error validating peerURLs {ClusterID:f4739fba6dd1323a Members:[&{ID:57fa33b6819ae24c RaftAttributes:{PeerURLs:[http://etcd-nfauvf-etcd-2.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380] IsLearner:false} Attributes:{Name:etcd-nfauvf-etcd-2 ClientURLs:[http://etcd-nfauvf-etcd-2.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2379]}} &{ID:760f52a8a71061f8 RaftAttributes:{PeerURLs:[http://etcd-nfauvf-etcd-1.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380] IsLearner:false} Attributes:{Name:etcd-nfauvf-etcd-1 ClientURLs:[http://etcd-nfauvf-etcd-1.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2379]}} &{ID:7c953dbdc36e588e RaftAttributes:{PeerURLs:[http://etcd-nfauvf-etcd-0.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380] IsLearner:false} Attributes:{Name:etcd-nfauvf-etcd-0 ClientURLs:[http://etcd-nfauvf-etcd-0.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2379]}}] RemovedMemberIDs:[]}: member count is unequal"}
{"level":"fatal","ts":"2026-09-09T09:52:55.726991Z","caller":"etcdmain/etcd.go:204","msg":"discovery failed","error":"error validating peerURLs {ClusterID:f4739fba6dd1323a Members:[&{ID:57fa33b6819ae24c RaftAttributes:{PeerURLs:[http://etcd-nfauvf-etcd-2.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380] IsLearner:false} Attributes:{Name:etcd-nfauvf-etcd-2 ClientURLs:[http://etcd-nfauvf-etcd-2.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2379]}} &{ID:760f52a8a71061f8 RaftAttributes:{PeerURLs:[http://etcd-nfauvf-etcd-1.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380] IsLearner:false} Attributes:{Name:etcd-nfauvf-etcd-1 ClientURLs:[http://etcd-nfauvf-etcd-1.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2379]}} &{ID:7c953dbdc36e588e RaftAttributes:{PeerURLs:[http://etcd-nfauvf-etcd-0.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2380] IsLearner:false} Attributes:{Name:etcd-nfauvf-etcd-0 ClientURLs:[http://etcd-nfauvf-etcd-0.etcd-nfauvf-etcd-headless.default.svc.cluster.local:2379]}}] RemovedMemberIDs:[]}: member count is unequal","stacktrace":"go.etcd.io/etcd/server/v3/etcdmain.startEtcdOrProxyV2\n\tgo.etcd.io/etcd/server/v3/etcdmain/etcd.go:204\ngo.etcd.io/etcd/server/v3/etcdmain.Main\n\tgo.etcd.io/etcd/server/v3/etcdmain/main.go:40\nmain.main\n\tgo.etcd.io/etcd/server/v3/main.go:31\nruntime.main\n\truntime/proc.go:267"}
```

logs etcd3
```
kubectl logs etcd-nfauvf-etcd-3 --tail 10
Defaulted container "etcd" out of: etcd, kbagent, inject-bash (init), init-kbagent (init), kbagent-worker (init)
{"level":"error","ts":"2026-09-09T10:05:10.660050Z","caller":"etcdserver/server.go:2356","msg":"Validation on configuration change failed","shouldApplyV3":true,"error":"membership: peerURL exists","stacktrace":"go.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyConfChange\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:2356\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).apply\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:2225\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyEntries\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1440\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyAll\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1255\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).run.func8\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1143\ngo.etcd.io/etcd/pkg/v3/schedule.(*fifo).run\n\tgo.etcd.io/etcd/pkg/v3@v3.5.15/schedule/schedule.go:157"}
{"level":"info","ts":"2026-09-09T10:05:10.660138Z","logger":"raft","caller":"etcdserver/zap_raft.go:77","msg":"7696847d385604d switched to configuration voters=(534072688520814669 6339436284428870220 8507109105437008376 8977149317469853838)"}
{"level":"error","ts":"2026-09-09T10:05:11.718920Z","caller":"etcdserver/server.go:2356","msg":"Validation on configuration change failed","shouldApplyV3":true,"error":"membership: peerURL exists","stacktrace":"go.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyConfChange\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:2356\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).apply\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:2225\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyEntries\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1440\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyAll\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1255\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).run.func8\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1143\ngo.etcd.io/etcd/pkg/v3/schedule.(*fifo).run\n\tgo.etcd.io/etcd/pkg/v3@v3.5.15/schedule/schedule.go:157"}
{"level":"info","ts":"2026-09-09T10:05:11.718984Z","logger":"raft","caller":"etcdserver/zap_raft.go:77","msg":"7696847d385604d switched to configuration voters=(534072688520814669 6339436284428870220 8507109105437008376 8977149317469853838)"}
{"level":"error","ts":"2026-09-09T10:05:12.774310Z","caller":"etcdserver/server.go:2356","msg":"Validation on configuration change failed","shouldApplyV3":true,"error":"membership: peerURL exists","stacktrace":"go.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyConfChange\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:2356\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).apply\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:2225\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyEntries\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1440\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyAll\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1255\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).run.func8\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1143\ngo.etcd.io/etcd/pkg/v3/schedule.(*fifo).run\n\tgo.etcd.io/etcd/pkg/v3@v3.5.15/schedule/schedule.go:157"}
{"level":"info","ts":"2026-09-09T10:05:12.774378Z","logger":"raft","caller":"etcdserver/zap_raft.go:77","msg":"7696847d385604d switched to configuration voters=(534072688520814669 6339436284428870220 8507109105437008376 8977149317469853838)"}
{"level":"error","ts":"2026-09-09T10:05:13.831548Z","caller":"etcdserver/server.go:2356","msg":"Validation on configuration change failed","shouldApplyV3":true,"error":"membership: peerURL exists","stacktrace":"go.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyConfChange\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:2356\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).apply\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:2225\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyEntries\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1440\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyAll\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1255\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).run.func8\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1143\ngo.etcd.io/etcd/pkg/v3/schedule.(*fifo).run\n\tgo.etcd.io/etcd/pkg/v3@v3.5.15/schedule/schedule.go:157"}
{"level":"info","ts":"2026-09-09T10:05:13.831638Z","logger":"raft","caller":"etcdserver/zap_raft.go:77","msg":"7696847d385604d switched to configuration voters=(534072688520814669 6339436284428870220 8507109105437008376 8977149317469853838)"}
{"level":"error","ts":"2026-09-09T10:05:14.892418Z","caller":"etcdserver/server.go:2356","msg":"Validation on configuration change failed","shouldApplyV3":true,"error":"membership: peerURL exists","stacktrace":"go.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyConfChange\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:2356\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).apply\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:2225\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyEntries\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1440\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).applyAll\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1255\ngo.etcd.io/etcd/server/v3/etcdserver.(*EtcdServer).run.func8\n\tgo.etcd.io/etcd/server/v3/etcdserver/server.go:1143\ngo.etcd.io/etcd/pkg/v3/schedule.(*fifo).run\n\tgo.etcd.io/etcd/pkg/v3@v3.5.15/schedule/schedule.go:157"}
{"level":"info","ts":"2026-09-09T10:05:14.892490Z","logger":"raft","caller":"etcdserver/zap_raft.go:77","msg":"7696847d385604d switched to configuration voters=(534072688520814669 6339436284428870220 8507109105437008376 8977149317469853838)"}
```


```
kubectl get cluster etcd-nfauvf -oyaml
apiVersion: apps.kubeblocks.io/v1
kind: Cluster
metadata:
  annotations:
    kubeblocks.io/crd-api-version: apps.kubeblocks.io/v1
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"apps.kubeblocks.io/v1","kind":"Cluster","metadata":{"annotations":{},"name":"etcd-nfauvf","namespace":"default"},"spec":{"componentSpecs":[{"componentDef":"etcd-3-1.1.0-alpha.0","name":"etcd","persistentVolumeClaimRetentionPolicy":{"whenDeleted":"Delete"},"replicas":3,"resources":{"limits":{"cpu":"100m","memory":"0.5Gi"},"requests":{"cpu":"100m","memory":"0.5Gi"}},"serviceVersion":"3.5.6","tls":false,"volumeClaimTemplates":[{"name":"data","spec":{"accessModes":["ReadWriteOnce"],"resources":{"requests":{"storage":"20Gi"}},"storageClassName":null}}]}],"services":[{"componentSelector":"etcd","name":"client","roleSelector":"leader","serviceName":"client","spec":{"ports":[{"port":2379,"targetPort":2379}],"type":"NodePort"}}],"terminationPolicy":"DoNotTerminate"}}
  creationTimestamp: "2026-09-09T09:51:19Z"
  finalizers:
  - cluster.kubeblocks.io/finalizer
  generation: 4
  labels:
    apps.kubeblocks.io/rollout-name: etcd-nfauvf-etcd-rollout-create-18618
  name: etcd-nfauvf
  namespace: default
  resourceVersion: "269892081"
  uid: 98bb30c5-f68e-41d8-ab7b-427fafa35c52
spec:
  componentSpecs:
  - componentDef: etcd-3-1.1.0-alpha.0
    flatInstanceOrdinal: true
    instances:
    - annotations:
        rollout.apps.kubeblocks.io/version: 3.5.15
      canary: true
      compDef: etcd-3-1.1.0-alpha.0
      labels:
        traffic: canary
      name: 84c67a4b
      ordinals: {}
      replicas: 1
      serviceVersion: 3.5.15
    name: etcd
    ordinals: {}
    persistentVolumeClaimRetentionPolicy:
      whenDeleted: Delete
    podUpdatePolicy: PreferInPlace
    replicas: 4
    resources:
      limits:
        cpu: 100m
        memory: 512Mi
      requests:
        cpu: 100m
        memory: 512Mi
    serviceVersion: 3.5.6
    volumeClaimTemplates:
    - name: data
      spec:
        accessModes:
        - ReadWriteOnce
        resources:
          requests:
            storage: 20Gi
  services:
  - componentSelector: etcd
    name: client
    roleSelector: leader
    serviceName: client
    spec:
      ports:
      - nodePort: 31035
        port: 2379
        protocol: TCP
        targetPort: 2379
      type: NodePort
  terminationPolicy: DoNotTerminate
status:
  components:
    etcd:
      observedGeneration: 4
      phase: Updating
  conditions:
  - lastTransitionTime: "2026-09-09T09:51:20Z"
    message: 'The operator has started the provisioning of Cluster: etcd-nfauvf'
    observedGeneration: 4
    reason: PreCheckSucceed
    status: "True"
    type: ProvisioningStarted
  - lastTransitionTime: "2026-09-09T09:52:36Z"
    message: 'component etcd-nfauvf-etcd is not available; '
    reason: Unavailable
    status: "False"
    type: Available
  - lastTransitionTime: "2026-09-09T09:51:20Z"
    message: Successfully applied for resources
    observedGeneration: 4
    reason: ApplyResourcesSucceed
    status: "True"
    type: ApplyResources
  - lastTransitionTime: "2026-09-09T09:52:23Z"
    message: cluster etcd-nfauvf is ready
    reason: ClusterReady
    status: "True"
    type: Ready
  observedGeneration: 4
  phase: Updating
```


logs kb pod
```
kubectl logs -n kb-system kubeblocks-76c4f9975b-mnt5f --tail 50 | grep etcd-nfauvf-etcd
Defaulted container "manager" out of: manager, tools (init)
2026-09-09T10:01:47.145Z	INFO	reconcile object *v1.Component with action STATUS OK	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "42736ba8-411f-4264-a550-ff0dbb6f2b07", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:47.375Z	INFO	role probe event processed	{"controller": "event", "controllerGroup": "", "controllerKind": "Event", "Event": {"name":"etcd-nfauvf-etcd-1.ca91222a","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd-1.ca91222a", "reconcileID": "566891a8-08a2-4e37-9f39-76519c5435d9", "event": {"name":"etcd-nfauvf-etcd-1.ca91222a","namespace":"default"}, "eventName": "default/etcd-nfauvf-etcd-1.ca91222a", "eventUID": "35e120e2-e5fa-4e67-93a5-e38bd821565b", "eventPodUID": "005adad2-021a-4a7b-91b3-8a3b5b02fe7e", "podName": "default/etcd-nfauvf-etcd-1", "podUID": "005adad2-021a-4a7b-91b3-8a3b5b02fe7e", "role": "follower", "eventVersion": "1788948107350475", "branch": "instanceset", "result": "handled", "reason": "updated", "workload": "etcd-nfauvf-etcd", "previousRole": "follower", "roleDefined": true, "handled": true, "exclusiveClean": false}
2026-09-09T10:01:48.203Z	INFO	build error: requeue after: 1s as: [pod etcd-nfauvf-etcd-3: action: memberJoin, executed on pod: etcd-nfauvf-etcd-3, error: exit code: 1: failed: action failed some replicas have not joined: [etcd-nfauvf-etcd-3]]	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "f9d96185-24fa-4e1f-9223-834fbe38a41c", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:48.209Z	INFO	reconcile object *v1.Component with action STATUS OK	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "f9d96185-24fa-4e1f-9223-834fbe38a41c", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:49.268Z	INFO	build error: requeue after: 1s as: [pod etcd-nfauvf-etcd-3: action: memberJoin, executed on pod: etcd-nfauvf-etcd-3, error: exit code: 1: failed: action failed some replicas have not joined: [etcd-nfauvf-etcd-3]]	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "b7e1fa9a-725d-4473-8be4-b0dc8f36f33e", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:49.275Z	INFO	reconcile object *v1.Component with action STATUS OK	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "b7e1fa9a-725d-4473-8be4-b0dc8f36f33e", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:50.330Z	INFO	build error: requeue after: 1s as: [pod etcd-nfauvf-etcd-3: action: memberJoin, executed on pod: etcd-nfauvf-etcd-3, error: exit code: 1: failed: action failed some replicas have not joined: [etcd-nfauvf-etcd-3]]	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "354202d7-cd31-4ae7-81f0-94faeac1a2e7", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:50.336Z	INFO	reconcile object *v1.Component with action STATUS OK	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "354202d7-cd31-4ae7-81f0-94faeac1a2e7", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:50.553Z	INFO	role probe event processed	{"controller": "event", "controllerGroup": "", "controllerKind": "Event", "Event": {"name":"etcd-nfauvf-etcd-3.13470795","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd-3.13470795", "reconcileID": "cdef4365-39cf-4452-865a-ee91ef099b8f", "event": {"name":"etcd-nfauvf-etcd-3.13470795","namespace":"default"}, "eventName": "default/etcd-nfauvf-etcd-3.13470795", "eventUID": "7c49dc73-7ef0-433d-878c-aa2a67e236d8", "eventPodUID": "9afdee2f-6374-4b54-982d-b16c04afa3d4", "podName": "default/etcd-nfauvf-etcd-3", "podUID": "9afdee2f-6374-4b54-982d-b16c04afa3d4", "role": "follower", "eventVersion": "1788948110528207", "branch": "instanceset", "result": "handled", "reason": "updated", "workload": "etcd-nfauvf-etcd", "previousRole": "follower", "roleDefined": true, "handled": true, "exclusiveClean": false}
2026-09-09T10:01:51.393Z	INFO	build error: requeue after: 1s as: [pod etcd-nfauvf-etcd-3: action: memberJoin, executed on pod: etcd-nfauvf-etcd-3, error: exit code: 1: failed: action failed some replicas have not joined: [etcd-nfauvf-etcd-3]]	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "fc3383e9-b107-4b4f-9e35-321849db5f38", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:51.399Z	INFO	reconcile object *v1.Component with action STATUS OK	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "fc3383e9-b107-4b4f-9e35-321849db5f38", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:52.453Z	INFO	build error: requeue after: 1s as: [pod etcd-nfauvf-etcd-3: action: memberJoin, executed on pod: etcd-nfauvf-etcd-3, error: exit code: 1: failed: action failed some replicas have not joined: [etcd-nfauvf-etcd-3]]	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "a5e80380-7ffc-45d7-ba3a-cb51433e2b8d", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:52.459Z	INFO	reconcile object *v1.Component with action STATUS OK	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "a5e80380-7ffc-45d7-ba3a-cb51433e2b8d", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:52.988Z	INFO	role probe event processed	{"controller": "event", "controllerGroup": "", "controllerKind": "Event", "Event": {"name":"etcd-nfauvf-etcd-2.bd7355e2","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd-2.bd7355e2", "reconcileID": "0df32176-86bd-4681-bbe8-3368591435ab", "event": {"name":"etcd-nfauvf-etcd-2.bd7355e2","namespace":"default"}, "eventName": "default/etcd-nfauvf-etcd-2.bd7355e2", "eventUID": "bb73854d-cf67-4dfb-82f6-842d1b5ff18d", "eventPodUID": "0c5d5356-0b8f-4b9e-8b9e-c41d88ef486d", "podName": "default/etcd-nfauvf-etcd-2", "podUID": "0c5d5356-0b8f-4b9e-8b9e-c41d88ef486d", "role": "follower", "eventVersion": "1788948112966495", "branch": "instanceset", "result": "handled", "reason": "updated", "workload": "etcd-nfauvf-etcd", "previousRole": "follower", "roleDefined": true, "handled": true, "exclusiveClean": false}
2026-09-09T10:01:53.579Z	INFO	build error: requeue after: 1s as: [pod etcd-nfauvf-etcd-3: action: memberJoin, executed on pod: etcd-nfauvf-etcd-3, error: exit code: 1: failed: action failed some replicas have not joined: [etcd-nfauvf-etcd-3]]	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "6c25d112-e65d-4038-a075-280eb6f554b8", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:53.585Z	INFO	reconcile object *v1.Component with action STATUS OK	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "6c25d112-e65d-4038-a075-280eb6f554b8", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:54.639Z	INFO	build error: requeue after: 1s as: [pod etcd-nfauvf-etcd-3: action: memberJoin, executed on pod: etcd-nfauvf-etcd-3, error: exit code: 1: failed: action failed some replicas have not joined: [etcd-nfauvf-etcd-3]]	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "683a8177-c771-461d-9c5b-97262b473463", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
2026-09-09T10:01:54.646Z	INFO	reconcile object *v1.Component with action STATUS OK	{"controller": "component", "controllerGroup": "apps.kubeblocks.io", "controllerKind": "Component", "Component": {"name":"etcd-nfauvf-etcd","namespace":"default"}, "namespace": "default", "name": "etcd-nfauvf-etcd", "reconcileID": "683a8177-c771-461d-9c5b-97262b473463", "component": {"name":"etcd-nfauvf-etcd","namespace":"default"}}
```

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Desktop (please complete the following information):**
```
kbcli version 
Kubernetes: v1.30.4-vke.4
KubeBlocks: 1.1.0-beta.11
kbcli: 1.0.2
WARNING: version difference between kbcli (1.0.2) and kubeblocks (1.1.0-beta.11) 
➜  ~ 
➜  ~ helm get notes -n kb-system kb-addon-etcd   
NOTES:
Release Information:
  Commit ID: "9456dc59e6f4f591b5e94642b6de47fa2492d863"
  Commit Time: "2026-09-08 16:00:39 +0800"
  Release Branch: "v1.1.0-beta.11"
  Release Time:  "2026-09-09 13:58:38 +0800"
  Enterprise: "false"
```

**Additional context**
Add any other context about the problem here.


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[BUG] etcd rollout has a probability of blocking #10873

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Uh oh!

[BUG] etcd rollout has a probability of blocking #10873

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