Tungsten University
TungstenCluster Master Class
Advanced

Distributed Datasource Groups (DDG)

Learn Distributed Datasource Groups (DDG) in Tungsten Cluster, a single unified cluster split into logical, site-based groups with a single global Primary and local-first failover to minimize cross-site latency and improve resilience.​

This session explains DDG architecture, when it avoids cross-site failover, and how Connectors route reads locally while writes go to the global Primary, keeping operations consistent across sites without multi-cluster management overhead.​

You’ll review installation and configuration, including per-node datasource-group-id assignments, grouping nodes with the same ID, and a sample tungsten.ini showing defaults, REST API security, and members/connectors for a 5-node DDG deployment.

Topics Covered

  • 00:00 Introduction
  • 00:18 Topics
  • 00:30 DDG Topology
  • 02:00 Configuration Considerations
  • 03:05 Sample Configs
  • 04:08 Demo
  • 10:24 Summary
  • 10:54 Thank you