| ERROR | rolling upgrade prevented by string |
| CAUSE | One or more instances were blocking the rolling upgrade. |
| ACTION | Terminate or wait until the reported operation is complete before attempting the rolling upgrade to the cluster. |
| ERROR | rolling upgrade prevented by string |
| CAUSE | One or more instances were blocking the rolling upgrade. |
| ACTION | Terminate or wait until the reported operation is complete before attempting the rolling upgrade to the cluster. |