---
title: "Milvus"
description: "Use Milvus as an open-source vector database in Deja Vu, scalable from local development to production workloads."
---
[Milvus](https://milvus.io/) is an open-source vector database that suits AI applications of every size, from running a demo chatbot in a Jupyter notebook to building web-scale search that serves billions of users.

### Usage

```python
import os
from dejavu import Memory

config = {
    "vector_store": {
        "provider": "milvus",
        "config": {
            "collection_name": "test",
            "embedding_model_dims": 1536,
            "url": "127.0.0.1",
            "token": "8e4b8ca8cf2c67",
            "db_name": "my_database",
        }
    }
}

m = Memory.from_config(config)
messages = [
    {"role": "user", "content": "I'm planning to watch a movie tonight. Any recommendations?"},
    {"role": "assistant", "content": "How about thriller movies? They can be quite engaging."},
    {"role": "user", "content": "I’m not a big fan of thriller movies but I love sci-fi movies."},
    {"role": "assistant", "content": "Got it! I'll avoid thriller recommendations and suggest sci-fi movies in the future."}
]
m.add(messages, user_id="alice", metadata={"category": "movies"})
```

### Config

Here are the parameters available for configuring Milvus:

| Parameter | Description | Default Value |
| --- | --- | --- |
| `url` | Full URL/Uri for Milvus/Zilliz server | `http://localhost:19530` |
| `token` | Token for Zilliz server / for local setup defaults to None. | `None` |
| `collection_name` | The name of the collection | `dejavu` |
| `embedding_model_dims` | Dimensions of the embedding model | `1536` |
| `metric_type` | Metric type for similarity search | `L2` |
| `db_name` | Name of the database | `""` |
