Spark

Spark backend is based on the Apache Spark project. To use spark backend you will need working spark instance, you can also use Databricks

To configure the spark offline store edit feature_store.yaml

project: feature_repo
registry: data/registry.db
provider: local
online_store:
    ...
offline_store:
    type: yummy.YummyOfflineStore
    backend: spark
    config:
        spark.master: "local[*]"
        spark.ui.enabled: "false"
        spark.eventLog.enabled: "false"
        spark.sql.session.timeZone: "UTC"

in the config section you can put additional spark configuration.