How Spotify R&D Migrated from Heroic to VictoriaMetrics at Massive Scale

How do you monitor tens of trillions of data points without building your own database?

In this session from the December 2025 VictoriaMetrics Virtual Meetup, the Spotify engineering team details their massive migration journey. Moving away from "Heroic"—their legacy, in-house time series database—Spotify adopted VictoriaMetrics to standardize their observability stack and improve performance.
In this video, we cover:
The Challenge: Why maintaining a custom internal TSDB (Heroic) became unsustainable.
The Solution: Evaluating VictoriaMetrics for high-cardinality and massive ingestion rates.
The "PromQL" Win: Moving from a custom query language to industry-standard PromQL to streamline onboarding for new engineers.
Results: Improved dashboard speeds, reduced operational toil, and standardizing monitoring across the organization.
🔗 Read the full case study:
https://victoriametrics.com/blog/spotifys-performance-and-control-across-large-monitoring-environments-with-victoriametrics/
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