The Data Canary: How Netflix Validates Catalog Metadata

Netflix built an automated data canary system to validate catalog metadata changes before they go live.

The approach was prompted by an incident that showed bad data, not just bad code, can break playback.

It tests transformed data against real production traffic in a separate orchestrator setup and detects issues in under 10 minutes.

Faulty catalog updates are blocked from publication, reducing the risk of viewer-facing playback problems.