The following table lists all possible states of a PolarDB instance. Use this reference to determine what is happening to your instance and whether any action is required.
| State | Description |
|---|---|
| Creating | The instance is being created. |
| Running | The instance is running. |
| Deleting | The instance is being deleted. |
| Rebooting | The instance is restarting. |
| DBInstanceClassChanging | The instance class is being upgraded or downgraded. |
| TRANSING | The instance is being migrated. |
| EngineVersionUpgrading | The database engine version is being upgraded. |
| TransingToOthers | The data of the PolarDB-X instance is being migrated to an ApsaraDB RDS for MySQL instance. |
| GuardDBInstanceCreating | A disaster recovery instance is being created for the instance. |
| Restoring | The instance is being restored from a backup. |
| Importing | Data is being imported to the instance. |
| ImportingFromOthers | Data is being imported to the PolarDB-X instance from an ApsaraDB RDS for MySQL instance. |
| DBInstanceNetTypeChanging | The network type of the instance is being changed. |
| GuardSwitching | A failover operation is being performed for the instance in a disaster recovery scenario. |
| INS_CLONING | The instance is being cloned. |
| Released | The instance is released. |