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Migrating from Arch to Dagster

Welcome to your migration guide from Arch to Dagster+ Starter. This documentation will help you understand and navigate your new data platform powered by Dagster, while maintaining the familiar Meltano and dbt workflows you're accustomed to.

What's Changing?

  • Platform: Moving from Arch to Dagster+ Starter (Hybrid SaaS)
  • Compute: Continues to run on Arch-managed AWS infrastructure
  • Access: Full access to modify your Dagster, Meltano, and dbt code
  • State Management: Meltano state managed by the Arch
  • What Stays the Same: Your Meltano extractors/loaders and dbt models continue to work as before

What You'll Lose

  • Historical run information from Arch
  • Previous logs and execution history

What You'll Gain

  • Modern asset-based orchestration
  • Better observability and lineage tracking
  • Integrated monitoring and alerting
  • Direct code access and customization