# baidu/tera

An Internet-Scale Database.

Repository: https://github.com/baidu/tera
Canonical: https://ross.abutalabs.com/products/baidu-tera
Language: C++
License: BSD-3-Clause
License Family: permissive
Topics: nosql, database, c-plus-plus, baidu, data, storage, bigtable, hbase
Last push: 2024-06-05T12:31:05+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4543, "days_push": 819, "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 1902, forks 433 (observed 2026-08-28T04:05:51.678717+00:00)

## What it is
Tera is a high-performance distributed NoSQL database inspired by Google Bigtable, designed for real-time applications at internet scale. It scales to petabytes across thousands of commodity servers, with automatic sharding, MVCC, and C++/Java/Python/REST APIs.

## Use cases
- store petabytes of sparse multidimensional data across a cluster
- low-latency real-time key-value and wide-column lookups
- build a web page database or linkbase for web indexing
- self-host a Bigtable/HBase-style NoSQL store on commodity servers
- handle throughput-oriented and latency-sensitive workloads with tiered RAMDISK/SSD/DISK storage

## When to choose
- you need a Bigtable-compatible data model with automatic sharding and failover
- you want column-oriented storage with locality groups and snapshot support
- you operate a large Linux cluster and need linear scalability to thousands of nodes

## When to avoid
- you need a managed cloud database or broad multi-platform support
- your workload is small enough for a single-node database like PostgreSQL or RocksDB
- you require a large active community or frequent releases

## Facets
- artifact type: service
- maturity: maintenance
- function: database, search-engine, caching
- domain: databases, big-data, microservices, backend
- platform: cpp, self-hosted
- tags: nosql, bigtable, distributed-database, column-oriented, mvcc, sharding, hbase-alternative, linux, docker

## Member repositories
- baidu/tera (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:51.678717+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 2026-08-30T03:11:54.688932+00:00, confidence not recorded.
  - readme: https://github.com/baidu/tera (fetched 2026-08-28T04:05:51.678717+00:00, sha 3f9e736a752e)
- Data as of 2026-08-30T08:39:29.467469+00:00.