Amazon Relational Database Service
API Reference (API Version 2014-10-31)


Rebooting a DB instance restarts the database engine service. A reboot also applies to the DB instance any modifications to the associated DB parameter group that were pending. Rebooting a DB instance results in a momentary outage of the instance, during which the DB instance status is set to rebooting. If the RDS instance is configured for MultiAZ, it is possible that the reboot will be conducted through a failover. An Amazon RDS event is created when the reboot is completed.

If your DB instance is deployed in multiple Availability Zones, you can force a failover from one AZ to the other during the reboot. You might force a failover to test the availability of your DB instance deployment or to restore operations to the original AZ after a failover occurs.

The time required to reboot is a function of the specific database engine's crash recovery process. To improve the reboot time, we recommend that you reduce database activities as much as possible during the reboot process to reduce rollback activity for in-transit transactions.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.


The DB instance identifier. This parameter is stored as a lowercase string.


  • Must match the identifier of an existing DBInstance.

Type: String

Required: Yes


When true, the reboot will be conducted through a MultiAZ failover.

Constraint: You cannot specify true if the instance is not configured for MultiAZ.

Type: Boolean

Required: No

Response Elements

The following element is returned by the service.


Contains the result of a successful invocation of the following actions:

This data type is used as a response element in the DescribeDBInstances action.

Type: DBInstance object


For information about the errors that are common to all actions, see Common Errors.


DBInstanceIdentifier does not refer to an existing DB instance.

HTTP Status Code: 404


The specified DB instance is not in the available state.

HTTP Status Code: 400


Sample Request

Copy ?Action=RebootDBInstance &DBInstanceIdentifier=mysqldb &SignatureMethod=HmacSHA256 &SignatureVersion=4 &Version=2014-09-01 &X-Amz-Algorithm=AWS4-HMAC-SHA256 &X-Amz-Credential=AKIADQKE4SARGYLE/20140428/us-east-1/rds/aws4_request &X-Amz-Date=20140428T222011Z &X-Amz-SignedHeaders=content-type;host;user-agent;x-amz-content-sha256;x-amz-date &X-Amz-Signature=1c48f44c14183cff26fde7d912946f87f3bb9d715f66448f457a8f9e99602af5

Sample Response

<RebootDBInstanceResponse xmlns=""> <RebootDBInstanceResult> <DBInstance> <BackupRetentionPeriod>7</BackupRetentionPeriod> <DBInstanceStatus>rebooting</DBInstanceStatus> <MultiAZ>false</MultiAZ> <VpcSecurityGroups/> <DBInstanceIdentifier>mysqldb</DBInstanceIdentifier> <PreferredBackupWindow>08:14-08:44</PreferredBackupWindow> <PreferredMaintenanceWindow>fri:04:50-fri:05:20</PreferredMaintenanceWindow> <AvailabilityZone>us-east-1a</AvailabilityZone> <ReadReplicaDBInstanceIdentifiers/> <LatestRestorableTime>2014-04-28T22:15:00Z</LatestRestorableTime> <Engine>mysql</Engine> <PendingModifiedValues/> <LicenseModel>general-public-license</LicenseModel> <EngineVersion>5.6.13</EngineVersion> <Endpoint> <Port>3306</Port> <Address></Address> </Endpoint> <DBParameterGroups> <DBParameterGroup> <ParameterApplyStatus>in-sync</ParameterApplyStatus> <DBParameterGroupName>default.mysql5.6</DBParameterGroupName> </DBParameterGroup> </DBParameterGroups> <OptionGroupMemberships> <OptionGroupMembership> <OptionGroupName>default:mysql-5-6</OptionGroupName> <Status>in-sync</Status> </OptionGroupMembership> </OptionGroupMemberships> <PubliclyAccessible>true</PubliclyAccessible> <DBSecurityGroups> <DBSecurityGroup> <Status>active</Status> <DBSecurityGroupName>default</DBSecurityGroupName> </DBSecurityGroup> </DBSecurityGroups> <DBName>mysqldb</DBName> <AutoMinorVersionUpgrade>true</AutoMinorVersionUpgrade> <InstanceCreateTime>2014-04-21T22:24:26.573Z</InstanceCreateTime> <AllocatedStorage>100</AllocatedStorage> <MasterUsername>myawsuser</MasterUsername> <DBInstanceClass>db.m1.medium</DBInstanceClass> </DBInstance> </RebootDBInstanceResult> <ResponseMetadata> <RequestId>33c99cd2-be22-11d3-abdb-7cb19376fb1c</RequestId> </ResponseMetadata> </RebootDBInstanceResponse>

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: