This topic lists the states of ApsaraDB for MongoDB instances.

Instance state Description
Creating The instance is being created.
DBInstanceClassChanging The instance is being upgraded or downgraded.
DBInstanceNetTypeChanging The network type of the instance is being changed.
Deleting The instance is being deleted.
EngineVersionUpgrading The version of the database engine that the instance runs is being upgraded.
GuardSwitching A failover operation is being performed for an instance in a disaster recovery scenario.
HASwitching The instance is undergoing a primary/secondary switchover.
Importing Data is being imported to the instance.
ImportingFromOthers A database is being imported into the instance.
LinkSwitching The instance is undergoing a link switching.
MinorVersionUpgrading The minor version of the instance is being upgraded.
NET_CREATING A network connection to the instance is being created.
NET_DELETING A network connection to the instance is being deleted.
NodeCreating A node is being created in the instance.
NodeDeleting A node is being deleted in the instance.
Rebooting The instance is being restarted.
Restoring The instance is being restored from a backup set.
Running The instance is running.
SSLModifying The SSL status of the instance is changing.
TempDBInstanceCreating A temporary instance is being created.
Transing The instance is being migrated.
TransingToOthers A database in the instance is being migrated.
AuditLogOpening The audit log feature is being enabled for the instance.
AuditLogClosing The audit log feature is being disabled for the instance.