Enet4/faiss-rs

Create implementation for HNSW index

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#96 opened on Jul 2, 2025

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 (2 comments) (1 reaction) (0 assignees)Rust (50 forks)auto 404
enhancementhelp wanted

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Description

Hi! Are there any plans to create an implementation for the HNSW index that can be safely searched over multiple threads?

Or maybe there is a way to use the standard index_factory function to create an index that allows concurrent search?

Contributor guide

Research direction
Inspect the existing index implementation in the faiss rs crate to see which index types are currently supported and whether index factory can already create an HNSW index. Also review the Faiss C API for HNSW and thread safety considerations, and check any existing PRs or discussions about concurrent search.
Tech stack
rustcpp
Domain
apisearch
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
GitRustC++
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30