URI to fetch, upload, and update policy resources when using REST APIs

The Cloudera Lakehouse Optimizer resources use URI for identification. The URI is used to fetch, upload, or update the policy resources when you use REST APIs.

To construct a URI, for example the dlm://tpp/product/hive/ClouderaAdaptive URI, you must provide the following elements:

The dlm URI scheme.
An authority, such as tpp for table policy property, tps for table policy script, or tpa for table policy association.
The catalog / namespace / table / policy in the given order. This determines the level at which the script and properties have been defined, and also determines the scope of the resource. The default resource is dlm://tps:default/ClouderaAdaptive.
note
For tpa, the scope is the namespace. For example, dlm://tpa/tpcds/hive identifies the table and policy association for the hive namespace in the tpcds catalog.

The following image shows the different components of a sample URI:

The image shows the Provision Cluster option when creating a Data Hub.

Examples:

The dlm://tpp/product/hive/ClouderaAdaptive URI identifies the ClouderaAdaptive policy properties (JSON) defined for all the tables in the hive namespace in the product catalog.
The dlm://tpp/product/hive/customers/ClouderaAdaptive URI identifies the properties defined for the customers table in the hive namespace of the product catalog.

To understand the policy resources and the policy structure, see Understanding policy resources.