Rust

Vector Database

Build a vector database for semantic search. Implement embeddings, similarity search, and efficient indexing algorithms.

⏱️ 6h 40min
📦 12 modules
🎯 Advanced

What You'll Build

In this lab, you'll build a high-performance vector database from scratch in Rust. Implement vector embeddings, similarity search algorithms, efficient indexing structures like HNSW, and create a production-ready system for semantic search and retrieval-augmented generation (RAG).

Learning Objectives

  • Understand vector embeddings and similarity metrics

  • Implement efficient vector storage and retrieval

  • Build HNSW (Hierarchical Navigable Small World) index

  • Optimize for high-dimensional vector search

  • Create a REST API for vector operations

  • Handle concurrent queries and updates

Prerequisites

  • Advanced Rust programming skills

  • Understanding of data structures and algorithms

  • Linear algebra and vector mathematics basics

  • Experience with concurrent programming

Course Modules

1

Vector Mathematics Foundations

Implement vector operations, distance metrics (cosine, euclidean, dot product), and normalization.

2

Storage Layer Design

Design efficient vector storage, implement serialization, and create a persistence layer with RocksDB.

3

Brute Force Search

Implement basic nearest neighbor search as a baseline, optimize with SIMD operations.

4

HNSW Index Structure

Understand and implement the HNSW algorithm for approximate nearest neighbor search.

5

Index Building & Updates

Implement efficient index building, handle incremental updates, and manage deletions.

6

Query Optimization

Optimize search performance, implement query caching, and tune HNSW parameters.

7

Concurrent Operations

Add thread-safe operations, implement read-write locking, and handle concurrent queries and updates.

8

API Layer

Build REST API for insert, search, update, and delete operations. Add batch processing.

9

Metadata & Filtering

Add metadata support, implement pre and post-filtering, and enable hybrid search.

10

Benchmarking & Testing

Create comprehensive benchmarks, compare against existing solutions, and optimize bottlenecks.

11

Memory Management

Optimize memory usage, implement memory-mapped files, and handle large datasets efficiently.

12

Production Features

Add monitoring, health checks, backup/restore, and prepare for production deployment.

Technologies

Rust BLAS Axum RocksDB rayon HNSW