The Hybrid Data Pipeline server contains the DAS or Data Access Service as shown in Figure 1. The DAS is responsible for managing user and service configuration, brokering the flow of data between clients and databases, managing state, and communicating with on-premises connectors and more.

Storage of user and service configuration is handled by the System DB. HSQL is the embedded option, but the database is pluggable, allowing administrators to use their preferred relational database (such as Oracle, SQL Server, or MySQL). All communication with the pluggable database can be configured to occur over an encrypted channel, and the sensitive data at rest will always be encrypted. See Encryption for specific details.

When accessing data from a cloud data service (such as Salesforce) or a cloud platform (such as Microsoft Azure), the HDPS should be configured to use HTTPS. The exact configuration support varies by the endpoint being accessed.

Hybrid Data Pipeline may be deployed on one or more nodes behind a load balancer to scale out a solution. In this scenario, Hybrid Data Pipeline may be configured to use HTTPS for communication between individual nodes and between the load balancer and the nodes themselves.