Everything you need to know about High Cardinality

You’ve heard enough and more about High Cardinality.

You probably encounter it every day as an SRE, and as a user of software, it hampers your daily experience.

Visualizing and understanding High Cardinality can be hard at times.

So, we built highcardinality.com - a simple, fun website that explains what High Cardinality is from the prism of a bookshelf.

Do check it out ⬇️

1. An ELI5 (Explain it Like I'm 5) on High Cardinality - here
2. How endemic is Cardinality? For that, we need to look at food delivery apps, and why they have so much chaos on December 31st - here
3. If Cardinality is such a massive issue, why can't it be fixed? What are we missing? When does one focus on it? - here
4. Samples vs Metrics vs Cardinality. Another simple example of the impacts of High Cardinality - here
5. What is High Cardinality in the context of monitoring while using Prometheus and Grafana? - here
6. How 'streaming aggregations' can rein in high cardinality (nerd paradise article you should totally read) - here
7. What makes Levitate (our managed time series data warehouse) different? - here
8. Taming High Cardinality by sharding a stream - here

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