# go-ego/riot

Go Open Source, Distributed, Simple and efficient Search Engine; Warning: This is V1 and beta version, because of big memory consume, and the V2 will be rewrite all code.

Repository: https://github.com/go-ego/riot
Canonical: https://ross.abutalabs.com/products/go-ego-riot
Language: Go
License: Apache-2.0
License Family: permissive
Topics: go, golang, search-engine, search, riot, index, gwk
Archived: true
Last push: 2020-10-13T13:31:05+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3360, "days_push": 2150, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6050, forks 468 (observed 2026-08-28T04:09:34.622354+00:00)

## What it is
Riot is a distributed full-text search engine library written in Go, featuring efficient indexing, Chinese word segmentation via gse, BM25 scoring, and realtime index updates. It is a beta V1 with high memory consumption, and a full V2 rewrite was planned but the project has seen little activity since 2020.

## Use cases
- add full-text search to a Go application
- index millions of documents quickly in memory
- search Chinese text with word segmentation
- build a distributed search cluster in Go
- rank search results with BM25 and custom scoring
- perform realtime indexing with online add and delete

## When to choose
- you need an embeddable search engine in Go without external services
- your corpus includes Chinese text needing segmentation
- you want BM25 ranking and custom scoring rules built in
- you need distributed indexing and search

## When to avoid
- you need a production-grade, actively maintained search engine (prefer Elasticsearch, Meilisearch, or Bleve)
- memory footprint is a concern, since V1 consumes large amounts of memory
- you need long-term support, as the project has been inactive since 2020

## Facets
- artifact type: library
- maturity: maintenance
- function: search-engine, nlp
- domain: developer-tools
- platform: go, cross-platform
- tags: full-text-search, chinese-segmentation, bm25, distributed-indexing, inverted-index, search, natural-language-processing

## Member repositories
- go-ego/riot (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:34.622354+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 2026-08-29T17:48:55.997668+00:00, confidence not recorded.
  - readme: https://github.com/go-ego/riot (fetched 2026-08-28T04:09:34.622354+00:00, sha 7fdcc675449a)
- Data as of 2026-08-30T08:39:29.467469+00:00.