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How Cloudflare runs Prometheus at scale

How Cloudflare runs Prometheus at scale

Willing to manage large Prometheus deployments effectively? This informative blog discusses the challenges of managing a large Prometheus deployment and addresses the issue of cardinality explosion in Prometheus metrics.

Cloudflare uses Prometheus to gain insight into all the different pieces of hardware and software that make up our global network. Prometheus allows users to measure health & performance over time.

The key takeaways include,

  • The impact of cardinality on memory usage
  • The necessity of careful label management
  • The significance of chunking for storing time series data efficiently.


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The FAUN watches over the forest of developers. It roams between Kubernetes clusters, code caves, AI trails, and cloud canopies, gathering the signals that matter and clearing out the noise.
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