Data Integration Service
The Data Integration Service processes mappings on the Spark engine in the Hadoop environment. The Data Integration Service retrieves metadata from the Model repository when you run a Developer tool mapping. The Developer tool connects to the Data Integration Service to run mappings.
Metadata Access Service
The Metadata Access Service is a user-managed service that provides metadata from a Hadoop cluster to the Developer tool at design time. HBase, HDFS, Hive, and MapR-DB connections use the Metadata Access Service when you import an object from a Hadoop cluster. Create and configure a Metadata Access Service before you create HBase, HDFS, Hive, MapR Streams, and MapR-DB connections.
Model Repository Service
The Model Repository Service manages the Model repository. The Model Repository Service connects to the Model repository when you run a mapping.
The Analyst Service runs the Analyst tool in the Informatica domain. The Analyst Service manages the connections between service components and the users that have access to the Analyst tool.