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README.md

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English | [中文版](README_CN.md)

**OceanBase Database** is a distributed relational database. It is developed entirely by Ant Group. The OceanBase Database is built on a common server cluster. Based on the [Paxos](https://lamport.azurewebsites.net/pubs/lamport-paxos.pdf) protocol and its distributed structure, the OceanBase Database provides high availability and linear scalability. The OceanBase Database is not dependent on specific hardware architectures.

# Key features

- **Transparent Scalability**: 1,500 nodes, PB data and a trillion rows of records in one cluster.
- **Ultra-fast Performance**: TPC-C 707 million tmpC and TPC-H 15.26 million QphH @30000GB.
- **Cost Efficiency**: saves 70%–90% of storage costs.
- **Real-time Analytics**: supports HTAP without additional cost. 
- **Continuous Availability**: RPO = 0(zero data loss) and RTO < 8s(recovery time)
- **MySQL Compatible**: easily migrated from MySQL database.

See also [key features](https://en.oceanbase.com/product/opensource) for more details.

# Quick start

See also [Quick experience](https://en.oceanbase.com/docs/community-observer-en-10000000000829647) or [Quick Start (Simplified Chinese)](https://open.oceanbase.com/quickStart) for more details.

## 🔥 Start with all-in-one

You can quickly deploy a stand-alone OceanBase Database to experience with the following commands:

**Note**: Linux Only

```shell
# download and install all-in-one package (internet connection is required)
bash -c "$(curl -s https://obbusiness-private.oss-cn-shanghai.aliyuncs.com/download-center/opensource/oceanbase-all-in-one/installer.sh)"
source ~/.oceanbase-all-in-one/bin/env.sh

# quickly deploy OceanBase database
obd demo
```

## 🐳 Start with docker

**Note**: We provide images on [dockerhub](https://hub.docker.com/r/oceanbase/oceanbase-ce/tags), [quay.io](https://quay.io/repository/oceanbase/oceanbase-ce?tab=tags) and [ghcr.io](https://github.com/oceanbase/docker-images/pkgs/container/oceanbase-ce). If you have problems pulling images from dockerhub, please try the other two registries.

1. Start an OceanBase Database instance:

    ```shell
    # Deploy a mini standalone instance.
    docker run -p 2881:2881 --name oceanbase-ce -e MODE=mini -d oceanbase/oceanbase-ce

    # Deploy a mini standalone instance using image from quay.io.
    # docker run -p 2881:2881 --name oceanbase-ce -e MODE=mini -d quay.io/oceanbase/oceanbase-ce

    # Deploy a mini standalone instance using image from ghcr.io.
    # docker run -p 2881:2881 --name oceanbase-ce -e MODE=mini -d ghcr.io/oceanbase/oceanbase-ce
    ```

2. Connect to the OceanBase Database instance:

    ```shell
    docker exec -it oceanbase-ce obclient -h127.0.0.1 -P2881 -uroot # Connect to the root user of the sys tenant.
    ```

See also [Docker Readme](https://github.com/oceanbase/docker-images/blob/main/oceanbase-ce/README.md) for more details.

## ☸️ Start with Kubernetes

You can deploy and manage OceanBase Database instance in kubernetes cluster with [ob-operator](https://github.com/oceanbase/ob-operator) quickly. Refer to the document [Quick Start for ob-operator](https://oceanbase.github.io/ob-operator) to see details.

## 👨‍💻 Start developing
See [OceanBase Developer Document](https://oceanbase.github.io/oceanbase/build-and-run) to learn how to compile and deploy a manually compiled observer.

# Roadmap

For future plans, see [Product Iteration Progress](https://github.com/oceanbase/oceanbase/issues/1839). See also [OceanBase Roadmap](https://github.com/orgs/oceanbase/projects/4) for more details.

# Case study

OceanBase has been serving more than 2000 customers and upgraded their database from different industries, including Financial Services, Telecom, Retail, Internet, and more.

See also [success stories](https://en.oceanbase.com/customer/home) and [Who is using OceanBase](https://github.com/oceanbase/oceanbase/issues/1301) for more details.

# System architecture

[Introduction to system architecture](https://en.oceanbase.com/docs/community-observer-en-10000000000829641)

# Contributing

Contributions are highly appreciated. Read the [development guide](https://oceanbase.github.io/oceanbase) to get started.

# License

OceanBase Database is licensed under the Apache License, Version 2.0. See the [LICENSE](LICENSE) file for more info.

# Community

Join the OceanBase community via:

* [Discord](https://discord.gg/74cF8vbNEs): Best for: asking questions, sharing feedback, getting the latest news, and connecting with other OceanBase users.
* [GitHub Issues](https://github.com/oceanbase/oceanbase/issues): Best for: addressing bugs encountered while using OceanBase, as well as submitting feature proposals.
* [Chinese User Forum](https://ask.oceanbase.com/): Only for Chinese users, best for: asking questions, sharing feedback, getting the latest news, and connecting with other OceanBase users.
* WeChat Group (Add the assistant with WeChat ID: OBCE666): Only for Chinese users, best for: getting the latest news and connecting with other OceanBase users.