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## What is Milvus? Milvus is an open-source vector database built to power embedding similarity search and AI applications. Milvus makes unstructured data search more accessible, and provides a consistent user experience regardless of the deployment environment. Milvus 2.0 is a cloud-native vector database with storage and computation separated by design. All components in this refactored version of Milvus are stateless to enhance elasticity and flexibility. For more architecture datails, see [Milvus Architecture Overview](https://milvus.io/docs/v2.0.0/architecture_overview.md). Milvus was released under the [open-source Apache License 2.0](https://github.com/milvus-io/milvus/blob/master/LICENSE) in October 2019. It is currently a graduate project under [LF AI & Data Foundation](https://lfaidata.foundation/). ## Key features
Millisecond search on trillion vector datasets Average latency measured in milliseconds on trillion vector datasets.
Simplified unstructured data management
  • Rich APIs designed for data science workflows.
  • Consistent user experience across laptop, local cluster, and cloud.
  • Embed real-time search and analytics into virtually any application.
    • Reliable, always on vector database Milvus’ built-in replication and failover/failback features ensure data and applications can maintain business continuity in the event of a disruption.
    Highly scalable and elastic Component-level scalability makes it possible to scale up and down on demand. Milvus can autoscale at a component level according to the load type, making resource scheduling much more efficient.
    Hybrid search In addition to vectors, Milvus supports data types such as Boolean, integers, floating-point numbers, and more. A collection in Milvus can hold multiple fields for accommodating different data features or properties. Milvus pairs scalar filtering with powerful vector similarity search to offer a modern, flexible platform for analyzing unstructured data.
    Unified Lambda structure Milvus combines stream and batch processing for data storage to balance timeliness and efficiency. Its unified interface makes vector similarity search a breeze.
    Community supported, industry recognized With over 1,000 enterprise users, 7,500+ stars on GitHub, and an active open-source community, you’re not alone when you use Milvus. As a graduate project under the LF AI & Data Foundation, Milvus has institutional support.
    ## Quick start ### Install Milvus - [Standalone Quick Start Guide](https://milvus.io/docs/v2.0.0/install_standalone-docker.md) - [Cluster Quick Start Guide](https://milvus.io/docs/v2.0.0/install_cluster-docker.md) ### Build Milvus from source code Check the requirements first. ```bash go: 1.15 cmake: >=3.16 gcc: 7.5 ``` Clone Milvus repo and build. ```bash # Clone github repository. $ git clone https://github.com/milvus-io/milvus.git # Install third-party dependencies. $ cd milvus/ $ ./scripts/install_deps.sh # Compile Milvus. $ make ``` For the full story, see [developer's documentation](https://github.com/milvus-io/milvus/blob/master/DEVELOPMENT.md). > **IMPORTANT** The master branch is for the development of Milvus v2.0. On March 9th, 2021, we released Milvus v1.0, the first stable version of Milvus with long-term support. To use Milvus v1.0, switch to [branch 1.0](https://github.com/milvus-io/milvus/tree/1.0). ## Milvus 2.0 vs. 1.x: Cloud-native, distributed architecture, highly scalable, and more See [Milvus 2.0 vs. 1.x](https://github.com/milvus-io/milvus/blob/master/milvus20vs1x.md) for more information. ## Getting Started ### Demos
    Image search Chatbots Chemical structure search
    #### Image Search Images made searchable. Instantaneously return the most similar images from a massive database. #### Chatbots Interactive digital customer service that saves users time and businesses money. #### Chemical Structure Search Blazing fast similarity search, substructure search, or superstructure search for a specified molecule. ## Bootcamps Milvus [bootcamp](https://github.com/milvus-io/bootcamp) are designed to expose users to both the simplicity and depth of the vector database. Discover how to run benchmark tests as well as build similarity search applications spanning chatbots, recommendation systems, reverse image search, molecular search, and much more. ## Contributing Contributions to Milvus are welcome from everyone. See [Guidelines for Contributing](https://github.com/milvus-io/milvus/blob/master/CONTRIBUTING.md) for details on submitting patches and the contribution workflow. See our [community repository](https://github.com/milvus-io/community) to learn about our governance and access more community resources. ### All contributors




    ## Documentation For guidance on installation, development, deployment, and administration, check out [Milvus Docs](https://milvus.io/docs/home). ### SDK The implemented SDK and its API documentation are listed below: - [PyMilvus SDK](https://github.com/milvus-io/pymilvus) - [Node SDK](https://github.com/milvus-io/milvus-sdk-node) ### Milvus insight Milvus insight provides an intuitive and efficient GUI for Milvus. - [Quick start](https://github.com/milvus-io/milvus-insight#quick-start) ## Community Join the Milvus community on [Slack](https://join.slack.com/t/milvusio/shared_invite/zt-e0u4qu3k-bI2GDNys3ZqX1YCJ9OM~GQ) to share your suggestions, advice, and questions with our engineering team. Miluvs Slack Channel You can also check out our [FAQ page](https://milvus.io/docs/v2.0.0/performance_faq.md) to discover solutions or answers to your issues or questions. Subscribe to Milvus mailing lists: - [Technical Steering Committee](https://lists.lfai.foundation/g/milvus-tsc) - [Technical Discussions](https://lists.lfai.foundation/g/milvus-technical-discuss) - [Announcement](https://lists.lfai.foundation/g/milvus-announce) Follow Milvus on social media: - [Medium](https://medium.com/@milvusio) - [Twitter](https://twitter.com/milvusio) ## Join Us Zilliz, the company behind Milvus, is [actively hiring](https://app.mokahr.com/apply/zilliz/37974#/) algorithm, database, full-stack developers and solution engineers to build the next-generation open-source data fabric. ## Reference Reference to cite when you use Milvus in a research paper: ``` @inproceedings{2021milvus, title={Milvus: A Purpose-Built Vector Data Management System}, author={Wang, Jianguo and Yi, Xiaomeng and Guo, Rentong and Jin, Hai and Xu, Peng and Li, Shengjun and Wang, Xiangyu and Guo, Xiangzhou and Li, Chengming and Xu, Xiaohai and others}, booktitle={Proceedings of the 2021 International Conference on Management of Data}, pages={2614--2627}, year={2021} } ``` ## Acknowledgments Milvus adopts dependencies from the following: - Thanks to [FAISS](https://github.com/facebookresearch/faiss) for the excellent search library. - Thanks to [etcd](https://github.com/coreos/etcd) for providing great open-source key-value store tools. - Thanks to [Pulsar](https://github.com/apache/pulsar) for its wonderful distributed pub-sub messaging system. - Thanks to [RocksDB](https://github.com/facebook/rocksdb) for the powerful storage engines.