Amazon DynamoDB
API Reference

CreateGlobalTable

Creates a global table from an existing table. A global table creates a replication relationship between two or more DynamoDB tables with the same table name in the provided regions.

If you want to add a new replica table to a global table, each of the following conditions must be true:

  • The table must have the same primary key as all of the other replicas.

  • The table must have the same name as all of the other replicas.

  • The table must have DynamoDB Streams enabled, with the stream containing both the new and the old images of the item.

  • None of the replica tables in the global table can contain any data.

If global secondary indexes are specified, then the following conditions must also be met:

  • The global secondary indexes must have the same name.

  • The global secondary indexes must have the same hash key and sort key (if present).

Important

Write capacity settings should be set consistently across your replica tables and secondary indexes. DynamoDB strongly recommends enabling auto scaling to manage the write capacity settings for all of your global tables replicas and indexes.

If you prefer to manage write capacity settings manually, you should provision equal replicated write capacity units to your replica tables. You should also provision equal replicated write capacity units to matching secondary indexes across your global table.

Request Syntax

{ "GlobalTableName": "string", "ReplicationGroup": [ { "RegionName": "string" } ] }

Request Parameters

The request accepts the following data in JSON format.

Note

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

GlobalTableName

The global table name.

Type: String

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

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

Required: Yes

ReplicationGroup

The regions where the global table needs to be created.

Type: Array of Replica objects

Required: Yes

Response Syntax

{ "GlobalTableDescription": { "CreationDateTime": number, "GlobalTableArn": "string", "GlobalTableName": "string", "GlobalTableStatus": "string", "ReplicationGroup": [ { "RegionName": "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.

GlobalTableDescription

Contains the details of the global table.

Type: GlobalTableDescription object

Errors

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

GlobalTableAlreadyExistsException

The specified global table already exists.

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

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: