valentinus

next generation vector db built with lmdb bindings

dependencies

• bincode/serde - serialize/deserialize
• lmdb-rs - database bindings
• ndarray - numpy equivalent
• ort/onnx - embeddings

getting started

git clone https://github.com/kn0sys/valentinus && cd valentinus

optional environment variables

var	usage	default
LMDB_USER	working directory of the user for database	$USER
LMDB_MAP_SIZE	Sets max environment size, i.e. size in memory/disk of all data	20% of available memory
ONNX_PARALLEL_THREADS	parallel execution mode for this session	1
VALENTINUS_CUSTOM_DIM	embeddings dimensions for custom models	all-mini-lm-6 -> 384
VALENTINUS_LMDB_ENV	environment for the database (i.e. test, prod)	test

tests

• Note: all tests currently require the all-MiniLM-L6-v2_onnx directory
• Get the model.onnx and tokenizer.json from huggingface or build them

mkdir all-MiniLM-L6-v2_onnx
cd all-MiniLM-L6-v2_onnx && wget https://huggingface.co/sentence-transformers/all-MiniLM-L6-v2/resolve/main/config.json
wget https://huggingface.co/sentence-transformers/all-MiniLM-L6-v2/resolve/main/onnx/model.onnx
wget https://huggingface.co/sentence-transformers/all-MiniLM-L6-v2/resolve/main/special_tokens_map.json
wget https://huggingface.co/sentence-transformers/all-MiniLM-L6-v2/resolve/main/main/tokenizer_config.json
wget https://huggingface.co/sentence-transformers/all-MiniLM-L6-v2/resolve/main/main/tokenizer.json
wget https://huggingface.co/sentence-transformers/all-MiniLM-L6-v2/resolve/main/main/vocab.txt

RUST_TEST_THREADS=1 cargo test

examples

see examples

reference

inspired by this chromadb python tutorial