What do you use when you have to store high cardinality metrics?

• promscale

  18 1,330 0.0 Go

  Discontinued [DEPRECATED] Promscale is a unified metric and trace observability backend for Prometheus, Jaeger and OpenTelemetry built on PostgreSQL and TimescaleDB.

  

Oh wow, I browsed the project just a few weeks ago, didn't see it then. I see the deprecation is recent (https://github.com/timescale/promscale/issues/1836)

• postgresql-topn

  1 235 3.1 C

  TopN is an open source PostgreSQL extension that returns the top values in a database according to some criteria

  

I had a reporting system where the data was produced by a batch system. I added the PostgreSQL TopN extension to efficiently keep only the top 1000 values and put the long tail in an "Everything Else" heading.

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• Algebird

  2 2,288 7.6 Scala

  Abstract Algebra for Scala

  

https://github.com/twitter/algebird (production ready, used at Twitter, but for the JVM)

• countminsketch

  1 28 10.0 Go

  An implementation of Count-Min Sketch in Golang

https://github.com/shenwei356/countminsketch (for golang)

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