projectnessie/nessie
Nessie: Transactional Catalog for Data Lakes with Git-like semantics observed · 2026-08-28
Health v2 · maintenance only
98/100
- Activity 99
- Release rhythm 95
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 7
- age_days: 2337
- days_rel: 33
- days_push: 7
- n_releases_24m: 54
Adoption not part of the score
1497 stars · 193 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Project Nessie is a transactional catalog for data lakes that provides Git-like branching, tagging, and cross-table transactions for Apache Iceberg tables. It is deployed as a server (Docker, Helm, or standalone JAR) exposing the Iceberg REST API and a native REST API, with a CLI/REPL and GC tooling.
Use cases
- add git-like branching and tagging to a data lake
- run isolated staging and dev environments on the same lakehouse data
- perform atomic multi-table commits across Iceberg tables
- track and roll back bad batch jobs in Spark or Trino pipelines
- implement garbage collection for expired Iceberg data files
- serve an Iceberg REST catalog for multiple query engines
When to choose
- you use Apache Iceberg and want version control, isolation, and cross-table transactions over your catalog
- you need reproducible data states, tags, and branches for data engineering workflows
- you want a self-hosted catalog deployable via Docker or Kubernetes
When to avoid
- you use Delta Lake or Apache Hudi rather than Iceberg
- you only need a simple single-version catalog without branching or MVCC
- you want a fully managed cloud catalog service
Facets
service · maturity active
database version-control api-framework cli big-data databases analytics developer-tools self-hosted jvm python cli data-lake apache-iceberg catalog git-like-semantics spark trino dremio multi-version-concurrency garbage-collection data-engineering docker kubernetes
7 sources
- readme: https://github.com/projectnessie/nessie · fetched 2026-08-28 · 0ad86cae6707
- homepage: https://projectnessie.org · fetched 2026-08-29 · df078dd53b86
- site_page: https://projectnessie.org/guides/about · fetched 2026-08-29 · dc8cca772b48
- site_page: https://projectnessie.org/nessie-latest · fetched 2026-08-29 · 56377066b669
- site_page: https://projectnessie.org/releases · fetched 2026-08-29 · 27ff16b73dbd
- site_page: https://projectnessie.org/releases-0.69 · fetched 2026-08-29 · 6609ffa9f8b8
- site_page: https://projectnessie.org/releases-0.49 · fetched 2026-08-29 · 55910a47e41b
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| projectnessie/nessie | main | 98 |
For agents
markdown · JSON · MCP: product_card(name="projectnessie/nessie")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem