Feast

Feast is the feature store for MATIH, providing consistent feature serving for both training and inference with offline (batch) and online (real-time) stores.

Architecture

+------------------+     +------------------+
| Feast Registry   |     | Online Store     |
| (PostgreSQL)     |     | (Redis)          |
+------------------+     +------------------+
       |
       v
+------------------+
| Offline Store    |
| (Iceberg / S3)   |
+------------------+

Components

Component	Backend	Purpose
Registry	PostgreSQL	Feature definition metadata
Online Store	Redis	Low-latency feature serving
Offline Store	Iceberg tables via Trino	Historical feature retrieval

Connection

feast:
  registry: "postgresql://feast@postgresql:5432/feast_registry"
  onlineStore:
    type: redis
    host: "redis-master.matih-data-plane.svc.cluster.local"
    port: 6379
  offlineStore:
    type: iceberg
    catalog: "polaris"

MLflow Ray