DynamoDB / Client / update_global_table

update_global_table

DynamoDB.Client.update_global_table(**kwargs)

Adds or removes replicas in the specified global table. The global table must already exist to be able to use this operation. Any replica to be added must be empty, have the same name as the global table, have the same key schema, have DynamoDB Streams enabled, and have the same provisioned and maximum write capacity units.

Warning

For global tables, this operation only applies to global tables using Version 2019.11.21 (Current version), as it provides greater flexibility, higher efficiency and consumes less write capacity than 2017.11.29 (Legacy). To determine which version you are using, see Determining the version. To update existing global tables from version 2017.11.29 (Legacy) to version 2019.11.21 (Current), see Updating global tables.

Note

For global tables, this operation only applies to global tables using Version 2019.11.21 (Current version). If you are using global tables Version 2019.11.21 you can use UpdateTable instead.

Although you can use UpdateGlobalTable to add replicas and remove replicas in a single request, for simplicity we recommend that you issue separate requests for adding or removing replicas.

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).

• The global secondary indexes must have the same provisioned and maximum write capacity units.

See also: AWS API Documentation

Request Syntax

response = client.update_global_table(
    GlobalTableName='string',
    ReplicaUpdates=[
        {
            'Create': {
                'RegionName': 'string'
            },
            'Delete': {
                'RegionName': 'string'
            }
        },
    ]
)

Parameters:

• GlobalTableName (string) –

  [REQUIRED]

  The global table name.

• ReplicaUpdates (list) –

  [REQUIRED]

  A list of Regions that should be added or removed from the global table.

  • (dict) –

    Represents one of the following:

    • A new replica to be added to an existing global table.

    • New parameters for an existing replica.

    • An existing replica to be removed from an existing global table.

    • Create (dict) –

      The parameters required for creating a replica on an existing global table.

      • RegionName (string) – [REQUIRED]

        The Region of the replica to be added.

    • Delete (dict) –

      The name of the existing replica to be removed.

      • RegionName (string) – [REQUIRED]

        The Region of the replica to be removed.

Return type:

dict

Returns:

Response Syntax

{
    'GlobalTableDescription': {
        'ReplicationGroup': [
            {
                'RegionName': 'string',
                'ReplicaStatus': 'CREATING'|'CREATION_FAILED'|'UPDATING'|'DELETING'|'ACTIVE'|'REGION_DISABLED'|'INACCESSIBLE_ENCRYPTION_CREDENTIALS',
                'ReplicaStatusDescription': 'string',
                'ReplicaStatusPercentProgress': 'string',
                'KMSMasterKeyId': 'string',
                'ProvisionedThroughputOverride': {
                    'ReadCapacityUnits': 123
                },
                'OnDemandThroughputOverride': {
                    'MaxReadRequestUnits': 123
                },
                'GlobalSecondaryIndexes': [
                    {
                        'IndexName': 'string',
                        'ProvisionedThroughputOverride': {
                            'ReadCapacityUnits': 123
                        },
                        'OnDemandThroughputOverride': {
                            'MaxReadRequestUnits': 123
                        }
                    },
                ],
                'ReplicaInaccessibleDateTime': datetime(2015, 1, 1),
                'ReplicaTableClassSummary': {
                    'TableClass': 'STANDARD'|'STANDARD_INFREQUENT_ACCESS',
                    'LastUpdateDateTime': datetime(2015, 1, 1)
                }
            },
        ],
        'GlobalTableArn': 'string',
        'CreationDateTime': datetime(2015, 1, 1),
        'GlobalTableStatus': 'CREATING'|'ACTIVE'|'DELETING'|'UPDATING',
        'GlobalTableName': 'string'
    }
}

Response Structure

• (dict) –

  • GlobalTableDescription (dict) –

    Contains the details of the global table.

    • ReplicationGroup (list) –

      The Regions where the global table has replicas.

      • (dict) –

        Contains the details of the replica.

        • RegionName (string) –

          The name of the Region.

        • ReplicaStatus (string) –

          The current state of the replica:

          • CREATING - The replica is being created.

          • UPDATING - The replica is being updated.

          • DELETING - The replica is being deleted.

          • ACTIVE - The replica is ready for use.

          • REGION_DISABLED - The replica is inaccessible because the Amazon Web Services Region has been disabled.

          Note

          If the Amazon Web Services Region remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region.

          • INACCESSIBLE_ENCRYPTION_CREDENTIALS - The KMS key used to encrypt the table is inaccessible.

          Note

          If the KMS key remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region.

        • ReplicaStatusDescription (string) –

          Detailed information about the replica status.

        • ReplicaStatusPercentProgress (string) –

          Specifies the progress of a Create, Update, or Delete action on the replica as a percentage.

        • KMSMasterKeyId (string) –

          The KMS key of the replica that will be used for KMS encryption.

        • ProvisionedThroughputOverride (dict) –

          Replica-specific provisioned throughput. If not described, uses the source table’s provisioned throughput settings.

          • ReadCapacityUnits (integer) –

            Replica-specific read capacity units. If not specified, uses the source table’s read capacity settings.

        • OnDemandThroughputOverride (dict) –

          Overrides the maximum on-demand throughput settings for the specified replica table.

          • MaxReadRequestUnits (integer) –

            Maximum number of read request units for the specified replica table.

        • GlobalSecondaryIndexes (list) –

          Replica-specific global secondary index settings.

          • (dict) –

            Represents the properties of a replica global secondary index.

            • IndexName (string) –

              The name of the global secondary index.

            • ProvisionedThroughputOverride (dict) –

              If not described, uses the source table GSI’s read capacity settings.

              • ReadCapacityUnits (integer) –

                Replica-specific read capacity units. If not specified, uses the source table’s read capacity settings.

            • OnDemandThroughputOverride (dict) –

              Overrides the maximum on-demand throughput for the specified global secondary index in the specified replica table.

              • MaxReadRequestUnits (integer) –

                Maximum number of read request units for the specified replica table.

        • ReplicaInaccessibleDateTime (datetime) –

          The time at which the replica was first detected as inaccessible. To determine cause of inaccessibility check the ReplicaStatus property.

        • ReplicaTableClassSummary (dict) –

          Contains details of the table class.

          • TableClass (string) –

            The table class of the specified table. Valid values are STANDARD and STANDARD_INFREQUENT_ACCESS.

          • LastUpdateDateTime (datetime) –

            The date and time at which the table class was last updated.

    • GlobalTableArn (string) –

      The unique identifier of the global table.

    • CreationDateTime (datetime) –

      The creation time of the global table.

    • GlobalTableStatus (string) –

      The current state of the global table:

      • CREATING - The global table is being created.

      • UPDATING - The global table is being updated.

      • DELETING - The global table is being deleted.

      • ACTIVE - The global table is ready for use.

    • GlobalTableName (string) –

      The global table name.

Exceptions

• DynamoDB.Client.exceptions.InternalServerError

• DynamoDB.Client.exceptions.GlobalTableNotFoundException

• DynamoDB.Client.exceptions.ReplicaAlreadyExistsException

• DynamoDB.Client.exceptions.ReplicaNotFoundException

• DynamoDB.Client.exceptions.TableNotFoundException