finspace / Client / create_kx_dataview

create_kx_dataview

finspace.Client.create_kx_dataview(**kwargs)

Creates a snapshot of kdb database with tiered storage capabilities and a pre-warmed cache, ready for mounting on kdb clusters. Dataviews are only available for clusters running on a scaling group. They are not supported on dedicated clusters.

See also: AWS API Documentation

Request Syntax

response = client.create_kx_dataview(
    environmentId='string',
    databaseName='string',
    dataviewName='string',
    azMode='SINGLE'|'MULTI',
    availabilityZoneId='string',
    changesetId='string',
    segmentConfigurations=[
        {
            'dbPaths': [
                'string',
            ],
            'volumeName': 'string',
            'onDemand': True|False
        },
    ],
    autoUpdate=True|False,
    readWrite=True|False,
    description='string',
    tags={
        'string': 'string'
    },
    clientToken='string'
)

Parameters:

• environmentId (string) –

  [REQUIRED]

  A unique identifier for the kdb environment, where you want to create the dataview.

• databaseName (string) –

  [REQUIRED]

  The name of the database where you want to create a dataview.

• dataviewName (string) –

  [REQUIRED]

  A unique identifier for the dataview.

• azMode (string) –

  [REQUIRED]

  The number of availability zones you want to assign per volume. Currently, FinSpace only supports SINGLE for volumes. This places dataview in a single AZ.

• availabilityZoneId (string) – The identifier of the availability zones.

• changesetId (string) – A unique identifier of the changeset that you want to use to ingest data.

• segmentConfigurations (list) –

  The configuration that contains the database path of the data that you want to place on each selected volume. Each segment must have a unique database path for each volume. If you do not explicitly specify any database path for a volume, they are accessible from the cluster through the default S3/object store segment.

  • (dict) –

    The configuration that contains the database path of the data that you want to place on each selected volume. Each segment must have a unique database path for each volume. If you do not explicitly specify any database path for a volume, they are accessible from the cluster through the default S3/object store segment.

    • dbPaths (list) – [REQUIRED]

      The database path of the data that you want to place on each selected volume for the segment. Each segment must have a unique database path for each volume.

      • (string) –

    • volumeName (string) – [REQUIRED]

      The name of the volume where you want to add data.

    • onDemand (boolean) –

      Enables on-demand caching on the selected database path when a particular file or a column of the database is accessed. When on demand caching is True, dataviews perform minimal loading of files on the filesystem as needed. When it is set to False, everything is cached. The default value is False.

• autoUpdate (boolean) – The option to specify whether you want to apply all the future additions and corrections automatically to the dataview, when you ingest new changesets. The default value is false.

• readWrite (boolean) –

  The option to specify whether you want to make the dataview writable to perform database maintenance. The following are some considerations related to writable dataviews.

  • You cannot create partial writable dataviews. When you create writeable dataviews you must provide the entire database path.

  • You cannot perform updates on a writeable dataview. Hence, autoUpdate must be set as False if readWrite is True for a dataview.

  • You must also use a unique volume for creating a writeable dataview. So, if you choose a volume that is already in use by another dataview, the dataview creation fails.

  • Once you create a dataview as writeable, you cannot change it to read-only. So, you cannot update the readWrite parameter later.

• description (string) – A description of the dataview.

• tags (dict) –

  A list of key-value pairs to label the dataview. You can add up to 50 tags to a dataview.

  • (string) –

    • (string) –

• clientToken (string) –

  [REQUIRED]

  A token that ensures idempotency. This token expires in 10 minutes.

  This field is autopopulated if not provided.

Return type:

dict

Returns:

Response Syntax

{
    'dataviewName': 'string',
    'databaseName': 'string',
    'environmentId': 'string',
    'azMode': 'SINGLE'|'MULTI',
    'availabilityZoneId': 'string',
    'changesetId': 'string',
    'segmentConfigurations': [
        {
            'dbPaths': [
                'string',
            ],
            'volumeName': 'string',
            'onDemand': True|False
        },
    ],
    'description': 'string',
    'autoUpdate': True|False,
    'readWrite': True|False,
    'createdTimestamp': datetime(2015, 1, 1),
    'lastModifiedTimestamp': datetime(2015, 1, 1),
    'status': 'CREATING'|'ACTIVE'|'UPDATING'|'FAILED'|'DELETING'
}

Response Structure

• (dict) –

  • dataviewName (string) –

    A unique identifier for the dataview.

  • databaseName (string) –

    The name of the database where you want to create a dataview.

  • environmentId (string) –

    A unique identifier for the kdb environment, where you want to create the dataview.

  • azMode (string) –

    The number of availability zones you want to assign per volume. Currently, FinSpace only supports SINGLE for volumes. This places dataview in a single AZ.

  • availabilityZoneId (string) –

    The identifier of the availability zones.

  • changesetId (string) –

    A unique identifier for the changeset.

  • segmentConfigurations (list) –

    The configuration that contains the database path of the data that you want to place on each selected volume. Each segment must have a unique database path for each volume. If you do not explicitly specify any database path for a volume, they are accessible from the cluster through the default S3/object store segment.

    • (dict) –

      The configuration that contains the database path of the data that you want to place on each selected volume. Each segment must have a unique database path for each volume. If you do not explicitly specify any database path for a volume, they are accessible from the cluster through the default S3/object store segment.

      • dbPaths (list) –

        The database path of the data that you want to place on each selected volume for the segment. Each segment must have a unique database path for each volume.

        • (string) –

      • volumeName (string) –

        The name of the volume where you want to add data.

      • onDemand (boolean) –

        Enables on-demand caching on the selected database path when a particular file or a column of the database is accessed. When on demand caching is True, dataviews perform minimal loading of files on the filesystem as needed. When it is set to False, everything is cached. The default value is False.

  • description (string) –

    A description of the dataview.

  • autoUpdate (boolean) –

    The option to select whether you want to apply all the future additions and corrections automatically to the dataview when you ingest new changesets. The default value is false.

  • readWrite (boolean) –

    Returns True if the dataview is created as writeable and False otherwise.

  • createdTimestamp (datetime) –

    The timestamp at which the dataview was created in FinSpace. The value is determined as epoch time in milliseconds. For example, the value for Monday, November 1, 2021 12:00:00 PM UTC is specified as 1635768000000.

  • lastModifiedTimestamp (datetime) –

    The last time that the dataview was updated in FinSpace. The value is determined as epoch time in milliseconds. For example, the value for Monday, November 1, 2021 12:00:00 PM UTC is specified as 1635768000000.

  • status (string) –

    The status of dataview creation.

    • CREATING – The dataview creation is in progress.

    • UPDATING – The dataview is in the process of being updated.

    • ACTIVE – The dataview is active.

Exceptions

• finspace.Client.exceptions.InternalServerException

• finspace.Client.exceptions.ValidationException

• finspace.Client.exceptions.ThrottlingException

• finspace.Client.exceptions.AccessDeniedException

• finspace.Client.exceptions.ResourceNotFoundException

• finspace.Client.exceptions.ConflictException

• finspace.Client.exceptions.LimitExceededException

• finspace.Client.exceptions.ResourceAlreadyExistsException