Amazon DocumentDB
Developer Guide

ModifyDBInstance

Modifies settings for a DB instance. You can change one or more database configuration parameters by specifying these parameters and the new values in the request.

Request Parameters

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

DBInstanceIdentifier

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

Constraints:

  • Must match the identifier of an existing DBInstance.

Type: String

Required: Yes

ApplyImmediately

Specifies whether the modifications in this request and any pending modifications are asynchronously applied as soon as possible, regardless of the PreferredMaintenanceWindow setting for the DB instance.

If this parameter is set to false, changes to the DB instance are applied during the next maintenance window. Some parameter changes can cause an outage and are applied on the next reboot.

Default: false

Type: Boolean

Required: No

AutoMinorVersionUpgrade

Indicates that minor version upgrades are applied automatically to the DB instance during the maintenance window. Changing this parameter doesn't result in an outage except in the following case, and the change is asynchronously applied as soon as possible. An outage results if this parameter is set to true during the maintenance window, and a newer minor version is available, and Amazon DocumentDB has enabled automatic patching for that engine version.

Type: Boolean

Required: No

DBInstanceClass

The new compute and memory capacity of the DB instance; for example, db.r5.large. Not all DB instance classes are available in all AWS Regions.

If you modify the DB instance class, an outage occurs during the change. The change is applied during the next maintenance window, unless ApplyImmediately is specified as true for this request.

Default: Uses existing setting.

Type: String

Required: No

NewDBInstanceIdentifier

The new DB instance identifier for the DB instance when renaming a DB instance. When you change the DB instance identifier, an instance reboot occurs immediately if you set Apply Immediately to true. It occurs during the next maintenance window if you set Apply Immediately to false. This value is stored as a lowercase string.

Constraints:

  • Must contain from 1 to 63 letters, numbers, or hyphens.

  • The first character must be a letter.

  • Cannot end with a hyphen or contain two consecutive hyphens.

Example: mydbinstance

Type: String

Required: No

PreferredMaintenanceWindow

The weekly time range (in UTC) during which system maintenance can occur, which might result in an outage. Changing this parameter doesn't result in an outage except in the following situation, and the change is asynchronously applied as soon as possible. If there are pending actions that cause a reboot, and the maintenance window is changed to include the current time, changing this parameter causes a reboot of the DB instance. If you are moving this window to the current time, there must be at least 30 minutes between the current time and end of the window to ensure that pending changes are applied.

Default: Uses existing setting.

Format: ddd:hh24:mi-ddd:hh24:mi

Valid days: Mon, Tue, Wed, Thu, Fri, Sat, Sun

Constraints: Must be at least 30 minutes.

Type: String

Required: No

PromotionTier

A value that specifies the order in which an Amazon DocumentDB replica is promoted to the primary instance after a failure of the existing primary instance.

Default: 1

Valid values: 0-15

Type: Integer

Required: No

Response Elements

The following element is returned by the service.

DBInstance

Detailed information about a DB instance.

Type: DBInstance object

Errors

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

AuthorizationNotFound

The specified CIDR IP or Amazon EC2 security group isn't authorized for the specified DB security group.

Amazon DocumentDB also might not be authorized to perform necessary actions on your behalf using IAM.

HTTP Status Code: 404

CertificateNotFound

CertificateIdentifier doesn't refer to an existing certificate.

HTTP Status Code: 404

DBInstanceAlreadyExists

You already have a DB instance with the given identifier.

HTTP Status Code: 400

DBInstanceNotFound

DBInstanceIdentifier doesn't refer to an existing DB instance.

HTTP Status Code: 404

DBParameterGroupNotFound

DBParameterGroupName doesn't refer to an existing DB parameter group.

HTTP Status Code: 404

DBSecurityGroupNotFound

DBSecurityGroupName doesn't refer to an existing DB security group.

HTTP Status Code: 404

DBUpgradeDependencyFailure

The DB upgrade failed because a resource that the DB depends on can't be modified.

HTTP Status Code: 400

InsufficientDBInstanceCapacity

The specified DB instance class isn't available in the specified Availability Zone.

HTTP Status Code: 400

InvalidDBInstanceState

The specified DB instance isn't in the available state.

HTTP Status Code: 400

InvalidDBSecurityGroupState

The state of the DB security group doesn't allow deletion.

HTTP Status Code: 400

InvalidVPCNetworkStateFault

The DB subnet group doesn't cover all Availability Zones after it is created because of changes that were made.

HTTP Status Code: 400

StorageQuotaExceeded

The request would cause you to exceed the allowed amount of storage available across all DB instances.

HTTP Status Code: 400

StorageTypeNotSupported

Storage of the specified StorageType can't be associated with the DB instance.

HTTP Status Code: 400

See Also

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