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README
Apache-2.0

ShardingSphere - 构建异构数据库上层的标准和生态

官方网站: https://shardingsphere.apache.org/

License GitHub release Build Status codecov snyk Maintainability CII Best Practices OpenTracing-1.0 Badge Skywalking Tracing

Twitter Slack Gitter

星评增长时间线 贡献者增长时间线
Stargazers over time Contributor over time

概述


Apache ShardingSphere 产品定位为 Database Plus,旨在构建异构数据库上层的标准和生态。 它关注如何充分合理地利用数据库的计算和存储能力,而并非实现一个全新的数据库。ShardingSphere 站在数据库的上层视角,关注他们之间的协作多于数据库自身。

连接增强可插拔 是 Apache ShardingSphere 的核心概念。

  • 连接:通过对数据库协议、SQL 方言以及数据库存储的灵活适配,快速的连接应用与多模式的异构数据库;
  • 增强:获取数据库的访问流量,并提供流量重定向(数据分片、读写分离、影子库)、流量变形(数据加密、数据脱敏)、流量鉴权(安全、审计、权限)、流量治理(熔断、限流)以及流量分析(服务质量分析、可观察性)等透明化增强功能;
  • 可插拔:项目采用微内核 + 三层可插拔模型,使内核、功能组件以及生态对接完全能够灵活的方式进行插拔式扩展,开发者能够像使用积木一样定制属于自己的独特系统。

ShardingSphere 已于 2020 年 4 月 16 日成为 Apache 软件基金会的顶级项目。

文档📜


EN d CN doc

更多信息请参考:https://shardingsphere.apache.org/document/current/cn/overview/

参与贡献🚀🧑‍💻


搭建开发环境和贡献者指南,请参考:https://shardingsphere.apache.org/community/cn/involved/

团队成员


我们真挚感谢社区贡献者对 Apache ShardingSphere 的奉献。

社区和支持💝🖤


:link: Mailing List. 适合于 Apache 社区相关讨论和版本发布;

:link: GitHub Issues. 适合于设计问题、缺陷报告或者开发相关;

:link: GitHub Discussions. 适合于技术问题咨询和新功能讨论;

:link: Slack channel. 适合于在线交流和线上会议;

:link: Twitter. 随时了解 Apache ShardingSphere 信息。

状态👀


:white_check_mark: Version 5.2.1: 已发布 :tada:

🔗 请访问 发布说明 获得更详细的信息.

:soon: Version 5.2.2

我们目前正在开发 5.2.2 里程碑。 请访问里程碑 获取最新信息。

工作原理


Apache ShardingSphere 由 JDBC、Proxy 这 2 款既能够独立部署,又支持混合部署配合使用的产品组成。 它们均提供标准化的数据水平扩展、分布式事务和分布式治理等功能,可适用于如 Java 同构、异构语言、云原生等各种多样化的应用场景。

ShardingSphere-JDBC


Maven Status

定位为轻量级 Java 框架,在 Java 的 JDBC 层提供的额外服务。 它使用客户端直连数据库,以 jar 包形式提供服务,无需额外部署和依赖,可理解为增强版的 JDBC 驱动,完全兼容 JDBC 和各种 ORM 框架。

:link: 更多信息请参考官方网站

ShardingSphere-Proxy


Nightly-Download Download Docker Pulls

定位为透明化的数据库代理端,提供封装了数据库二进制协议的服务端版本,用于完成对异构语言的支持。 目前提供 MySQL 和 PostgreSQL 版本,它可以使用任何兼容 MySQL/PostgreSQL 协议的访问客户端操作数据,对 DBA 更加友好。

:link: 更多信息请参考官方网站

ShardingSphere-JDBC ShardingSphere-Proxy
数据库 任意 MySQL/PostgreSQL
连接消耗数
异构语言 仅 Java 任意
性能 损耗低 损耗略高
无中心化
静态入口

混合架构


ShardingSphere-JDBC 采用无中心化架构,与应用程序共享资源,适用于 Java 开发的高性能的轻量级 OLTP 应用; ShardingSphere-Proxy 提供静态入口以及异构语言的支持,独立于应用程序部署,适用于 OLAP 应用以及对分片数据库进行管理和运维的场景。

Apache ShardingSphere 是多接入端共同组成的生态圈。 通过混合使用 ShardingSphere-JDBC 和 ShardingSphere-Proxy,并采用同一注册中心统一配置分片策略,能够灵活的搭建适用于各种场景的应用系统,使得架构师更加自由地调整适合于当前业务的最佳系统架构。

:link: 更多信息请参考官方网站

解决方案


解决方案/功能 分布式数据库 数据安全 数据库网关 全链路压测
数据分片 数据加密 异构数据库支持 影子库
读写分离 行级权限(TODO) SQL 方言转换(TODO) 可观测性
分布式事务 SQL 审计(TODO)
弹性伸缩 SQL 防火墙(TODO)
高可用

线路规划


Roadmap

如何构建 Apache ShardingSphere


查看 Wiki 详细了解如何构建 Apache ShardingSphere。

全景图




  

ShardingSphere 进入了CNCF 云原生全景图

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The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. 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While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "{}" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright {yyyy} {name of copyright owner} Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ======================================================================= Apache ShardingSphere Subcomponents: The Apache ShardingSphere project contains subcomponents with separate copyright notices and license terms. 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