DataOps with Dagster: A Practical Guide to Building a Reliable Data Platform
Summary
This guide details how Dagster facilitates DataOps by providing tools for both developer experience and production operations, aiming to build reliable data platforms. It covers "Day 1" aspects like the `dg CLI` for local development and branch deployments for isolated testing environments. For "Day 2" production operations, the guide emphasizes reliability through automatic retries, concurrency controls, run priority, and run timeouts. It also addresses data quality with asset checks, including severity levels and blocking mechanisms, and enhances visibility using saved selections and Dagster+ Insights for real-time operational metrics such as success rate, freshness pass rate, time to resolution, and cost attribution for Snowflake and BigQuery.
Key takeaway
For MLOps Engineers and Data Engineers building data platforms, adopting Dagster's DataOps features can significantly enhance reliability and data quality. You should configure automatic retries, concurrency limits, and run priority to prevent pipeline failures and resource contention. Implement blocking asset checks on critical assets to ensure data correctness and leverage Dagster+ Insights and saved selections to provide clear operational visibility and build stakeholder trust.
Key insights
DataOps integrates development and operations principles to build trustworthy, visible, and controllable data systems.
Principles
- Reliability: Pipelines recover gracefully.
- Quality: Data delivered is correct.
- Visibility: Stakeholders see pipeline status.
Method
Implement DataOps in two phases: "Day 1" focuses on developer experience and "Day 2" on production reliability, quality, and visibility, using tools like Dagster's CLI, branch deployments, and operational controls.
In practice
- Enable automatic retries for transient failures.
- Use concurrency controls to prevent resource overload.
- Implement blocking asset checks to stop bad data.
Topics
- DataOps
- Dagster
- Data Reliability
- Data Quality
- Data Orchestration
Code references
Best for: Data Engineer, MLOps Engineer, Software Engineer
Related on AIssential
Editorial summary, takeaway, and curation by AIssential. Original article published by Dagster Blog.