通过tidb operator对tiflash扩容无法扩容出新的节点，operator出现如下报错

[清风明月]

【 TiDB 使用环境】生产环境 /测试/ Poc
【 TiDB 版本】v6.1.0
【复现路径】做过哪些操作出现的问题
【遇到的问题：问题现象及影响】
【资源配置】
【附件：截图/日志/监控】
kubectl logs -f pod/tidb-controller-manager-75b6df5c47-4fv87 -ntidb-admin|grep yz
E1206 09:43:13.154628 1 tidbcluster_control.go:85] failed to update TidbCluster: [tidb/yz], error: Operation cannot be fulfilled on tidbclusters.pingcap.com “yz”: the object has been modified; please apply your changes to the latest version and try again
E1206 09:43:13.154682 1 tidb_cluster_controller.go:126] TidbCluster: tidb/yz, sync failed Operation cannot be fulfilled on tidbclusters.pingcap.com “yz”: the object has been modified; please apply your changes to the latest version and try again, requeuing
I1206 09:43:14.841514 1 pv_control.go:192] PV: [tidb-cluster-r24-pv04] updated successfully, : tidb/yz
E1206 09:43:15.155950 1 tidbcluster_control.go:85] failed to update TidbCluster: [tidb/yz], error: Operation cannot be fulfilled on tidbclusters.pingcap.com “yz”: the object has been modified; please apply your changes to the latest version and try again
E1206 09:43:15.155986 1 tidb_cluster_controller.go:126] TidbCluster: tidb/yz, sync failed Operation cannot be fulfilled on tidbclusters.pingcap.com “yz”: the object has been modified; please apply your changes to the latest version and try again, requeuing

[清风明月]

[清风明月]

后经排查发现tiflash的配置文件有点问题出现如下报错：
“I1206 10:09:03.063579 1 event.go:282] Event(v1.ObjectReference{Kind:“TidbCluster”, Namespace:“tidb”, Name:“yz”, UID:“50b1bdbc-629c-424e-9247-e36426ebd23c”, APIVersion:“pingcap.com/v1alpha1”, ResourceVersion:“52683256”, FieldPath:“”}): type: ‘Warning’ reason: ‘FailedUpdateTiFlashSTS’ contains volumeMounts that do not have matched volume: map[data1:{data1 false /data1 }]
E1206 10:09:16.330147 1 tidb_cluster_controller.go:126] TidbCluster: tidb/yz, sync failed contains volumeMounts that do not have matched volume: map[data1:{data1 false /data1 }], requeuing
I1206 10:09:16.330561 1 event.go:282] Event(v1.ObjectReference{Kind:“TidbCluster”, Namespace:“tidb”, Name:“yz”, UID:“50b1bdbc-629c-424e-9247-e36426ebd23c”, APIVersion:“pingcap.com/v1alpha1”, ResourceVersion:“52683256”, FieldPath:“”}): type: ‘Warning’ reason: ‘FailedUpdateTiFlashSTS’ contains volumeMounts that do not have matched volume: map[data1:{data1 false /data1 }]”

后来把配置文件在线去除掉，保留如下：

报错没有了，pod能正常扩容了。
扩容如下：

[root@k8s-master tidb]# kubectl patch -n tidb tc yz --type merge --patch '{"spec":{"tiflash":{"replicas":3}}}'
tidbcluster.pingcap.com/yz patched
[root@k8s-master tidb]# kubectl get pod -ntidb
tidbngmonitoring-lqb-ng-monitoring-0   1/1     Running   0          138m
yz-discovery-6c89b45d5d-nkps7          1/1     Running   1          26h
yz-pd-0                                1/1     Running   2          26h
yz-tidb-0                              2/2     Running   2          26h
yz-tidb-1                              2/2     Running   0          4m15s
yz-tiflash-0                           4/4     Running   0          29m
yz-tiflash-1                           4/4     Running   0          4m15s
yz-tiflash-2                           4/4     Running   0          7s
yz-tikv-0                              1/1     Running   1          26h
yz-tikv-1                              1/1     Running   1          6h43m
yz-tikv-2                              1/1     Running   0          77m

问题解决