Configuring an internal Cassandra database

Start storing data in an internal Cassandra database by creating a Cassandra cluster and configuring the Decision Data Store (DDS) service.

For more information about internal Cassandra deployments, see Cassandra overview.

Note: This procedure applies only to on-premises deployments.
  1. Create a Cassandra cluster by assigning the DDS node type to at least three Pega Platform nodes.
    Tip: To increase the volume of data and the volume of interactions that you process, assign the DDS node type to a higher number of nodes. For more information, see Sizing a Cassandra cluster.

    For more information, see Assigning node types to nodes for on-premises environments.

  2. In the header of Dev Studio, click Configure > Decisioning > Infrastructure > Services > Decision Data Store.
  3. In the Decision data store nodes section, click Edit settings.
  4. In the Edit decision data store settings window, clear the Use external Cassandra cluster check box.
  5. In the Cassandra CQL port field, enter 9042.
  6. In the Cassandra user ID and Cassandra password fields, enter dnode_ext.
  7. In the Logging level list, select a logging level.
    For more information about Cassandra driver loggers, see the DataStax driver documentation.
  8. Click Submit.
What to do next: Configure the Cassandra cluster that you created. For more information, see Configuring the Cassandra cluster.