# kairosdb/kairosdb

Fast scalable time series database

Repository: https://github.com/kairosdb/kairosdb
Canonical: https://ross.abutalabs.com/products/kairosdb
Language: Java
License: Apache-2.0
License Family: permissive
Topics: kairosdb, java, timeseries-database, metrics, timeseries
Last push: 2026-03-05T22:27:54+00:00

## Health v2 (maintenance only)
Score: 54/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 70, release rhythm 8, longevity 100
- inputs: {"age_days": 4957, "days_push": 181, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1762, forks 340 (observed 2026-08-28T04:05:32.785679+00:00)

## What it is
KairosDB is a fast, distributed, scalable time series database written in Java and built on top of Cassandra. It stores and queries metrics data at scale and ships with a Helm chart for Kubernetes deployment.

## Use cases
- store time series metrics from servers and applications
- query high-volume monitoring data at scale
- run a scalable metrics backend on Cassandra
- deploy a time series database in Kubernetes
- replace OpenTSDB for metric storage

## When to choose
- you need a distributed time series store backed by Cassandra
- you ingest large volumes of metrics and need horizontal scalability
- you want a self-hosted OpenTSDB-like alternative

## When to avoid
- you need a simple single-node metrics store without Cassandra operations overhead
- you want built-in long-term analytics or SQL querying
- your team cannot operate Cassandra clusters

## Facets
- artifact type: service
- maturity: active
- function: database, monitoring, analytics
- domain: databases, monitoring, big-data, analytics
- platform: jvm, self-hosted
- tags: time-series-database, cassandra, metrics-storage, distributed, docker, kubernetes

## Member repositories
- kairosdb/kairosdb (main) score 54

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:32.785679+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:27:02.119025+00:00, confidence not recorded.
  - readme: https://github.com/kairosdb/kairosdb (fetched 2026-08-28T04:05:32.785679+00:00, sha 00d2004c3a3c)
- Data as of 2026-08-30T08:39:29.467469+00:00.