Amazon DynamoDB
API Reference
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CreateBackup

Creates a backup for an existing table.

Each time you create an on-demand backup, the entire table data is backed up. There is no limit to the number of on-demand backups that can be taken.

When you create an on-demand backup, a time marker of the request is cataloged, and the backup is created asynchronously, by applying all changes until the time of the request to the last full table snapshot. Backup requests are processed instantaneously and become available for restore within minutes.

You can call CreateBackup at a maximum rate of 50 times per second.

All backups in DynamoDB work without consuming any provisioned throughput on the table.

If you submit a backup request on 2018-12-14 at 14:25:00, the backup is guaranteed to contain all data committed to the table up to 14:24:00, and data committed after 14:26:00 will not be. The backup might contain data modifications made between 14:24:00 and 14:26:00. On-demand backup does not support causal consistency.

Along with data, the following are also included on the backups:

  • Global secondary indexes (GSIs)

  • Local secondary indexes (LSIs)

  • Streams

  • Provisioned read and write capacity

Request Syntax

{ "BackupName": "string", "TableName": "string" }

Request Parameters

The request accepts the following data in JSON format.

Note

In the following list, the required parameters are described first.

BackupName

Specified name for the backup.

Type: String

Length Constraints: Minimum length of 3. Maximum length of 255.

Pattern: [a-zA-Z0-9_.-]+

Required: Yes

TableName

The name of the table.

Type: String

Length Constraints: Minimum length of 3. Maximum length of 255.

Pattern: [a-zA-Z0-9_.-]+

Required: Yes

Response Syntax

{ "BackupDetails": { "BackupArn": "string", "BackupCreationDateTime": number, "BackupExpiryDateTime": number, "BackupName": "string", "BackupSizeBytes": number, "BackupStatus": "string", "BackupType": "string" } }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

BackupDetails

Contains the details of the backup created for the table.

Type: BackupDetails object

Errors

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

BackupInUseException

There is another ongoing conflicting backup control plane operation on the table. The backup is either being created, deleted or restored to a table.

HTTP Status Code: 400

ContinuousBackupsUnavailableException

Backups have not yet been enabled for this table.

HTTP Status Code: 400

InternalServerError

An error occurred on the server side.

HTTP Status Code: 500

LimitExceededException

There is no limit to the number of daily on-demand backups that can be taken.

Up to 50 simultaneous table operations are allowed per account. These operations include CreateTable, UpdateTable, DeleteTable,UpdateTimeToLive, RestoreTableFromBackup, and RestoreTableToPointInTime.

The only exception is when you are creating a table with one or more secondary indexes. You can have up to 25 such requests running at a time; however, if the table or index specifications are complex, DynamoDB might temporarily reduce the number of concurrent operations.

There is a soft account limit of 256 tables.

HTTP Status Code: 400

TableInUseException

A target table with the specified name is either being created or deleted.

HTTP Status Code: 400

TableNotFoundException

A source table with the name TableName does not currently exist within the subscriber's account.

HTTP Status Code: 400

See Also

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