There can be several possible reasons for a cluster to get block in the "Creating" state:

• The Pods of the components are unable to become ready, with possible states like ImagePullBackOff,Pending,CrashBackLoopOff etc
• The metadata of the metadb in GMS is not prepared successfully
• Unable to retrieve the version from CN
• ...

The troubleshooting approach mainly involves two steps:

1. Check the status of the Pods in the cluster to see if there are any Pods in abnormal states
2. Check the polardbx-operator logs,for any ERROR logs related to the cluster

kubectl get pods -l polardbx/name={name}