enable_upgrade_mode specifies whether to enable the upgrade mode. In the upgrade mode, some backend system features are suspended.
| Property | Description |
|---|---|
| Parameter type | Boolean |
| Default value | False |
| Value range | * True * False |
| Effective upon OBServer restart | No |
Before an upgrade, you can use this configuration item to control the features (for example, DDL operations) that need to be prohibited, to simplify the upgrade process. Set enable_upgrade_mode to True before the upgrade and then set it to False after the upgrade.
