# apache/kylin

Apache Kylin

Repository: https://github.com/apache/kylin
Canonical: https://ross.abutalabs.com/products/kylin
Language: Java
License: Apache-2.0
License Family: permissive
Topics: kylin
Last push: 2026-07-16T09:56:12+00:00

## Health v2 (maintenance only)
Score: 64/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 92, release rhythm 8, longevity 100
- inputs: {"age_days": 4260, "days_push": 48, "days_rel": 514, "gap_med": 190, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3773, forks 1504 (observed 2026-08-28T04:08:18.187440+00:00)

## What it is
Apache Kylin is an open-source distributed OLAP engine for big data that delivers sub-second query latency on trillions of records. It provides a unified big data warehouse architecture with seamless BI tool integration, native compute via Gluten-ClickHouse, and streaming-batch hybrid analysis.

## Use cases
- run sub-second OLAP queries over trillions of rows
- serve high-concurrency analytics dashboards from a big data warehouse
- analyze streaming and batch data together with Kafka fusion models
- auto-generate models and indexes from query history
- connect BI tools like Tableau to a fast analytical backend

## When to choose
- you need sub-second latency on very large fact tables
- you want a unified lakehouse + OLAP warehouse on Spark
- your BI users need high-concurrency dashboard queries

## When to avoid
- you need a lightweight embedded analytics database
- your data volume is small enough for Postgres or DuckDB
- you cannot operate a JVM-based distributed cluster

## Facets
- artifact type: application
- maturity: stable
- function: database, search-engine, analytics, data-visualization
- domain: big-data, analytics, databases
- platform: jvm, cloud
- tags: olap, data-warehouse, sub-second-queries, apache, bi-integration, spark, kafka, lakehouse, data-engineering, linux, docker

## Member repositories
- apache/kylin (main) score 64

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:18.187440+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 2026-08-29T18:27:51.713700+00:00, confidence not recorded.
  - readme: https://github.com/apache/kylin (fetched 2026-08-28T04:08:18.187440+00:00, sha 7ab8aeb206b7)
- Data as of 2026-08-30T08:39:29.467469+00:00.