This topic describes the system events for ApsaraDB for Redis.

Type Event Description Status Level
Maintenance Instance_Failover An instance failover occurs. Executed Warn
Exception Instance_Failure_End An instance failure ends. Executed Critical
Exception Instance_Failure_Start An instance failure starts. Executing Critical
Maintenance Instance:SystemMaintenance.Transfer:Scheduled The instance migration is scheduled. Scheduled Warn
Maintenance Instance:SystemMaintenance.Transfer:Executing The instance is being migrated. Executing Warn
Maintenance Instance:SystemMaintenance.Transfer:Executed The instance is migrated. Executed Warn
Maintenance Instance:SystemMaintenance.Transfer:Canceled The instance migration is canceled. Canceled Warn
Maintenance Instance:SystemMaintenance.MinorVersionUpgrade:Scheduled The instance update to a minor version is scheduled. Scheduled Warn
Maintenance Instance:SystemMaintenance.MinorVersionUpgrade:Executing The instance is being updated to a minor version. Executing Warn
Maintenance Instance:SystemMaintenance.MinorVersionUpgrade:Executed The instance is updated to a minor version. Executed Warn
Maintenance Instance:SystemMaintenance.MinorVersionUpgrade:Canceled The instance update to a minor version is canceled. Canceled Warn