vertical sharding according to business need. Vertical sharding requires to adjust the architecture and design from time to time. Generally speaking, it is not soon enough to deal with fast changing needs from replace strongly consistent transactions with eventually consistent soft state. 3.1.3 Goal The main design goal of the data sharding modular of Apache ShardingSphere is to try to reduce the influenceof sharding actions and soft transactions as early as development decision‐making phase has sharply increased the design and development cost. Highly consistent transactions based on XA is relatively easy to use, but

web 管理控制台。它用于帮助用户更简单的 使用 ShardingSphere 的相关功能，目前提供注册中心管理、动态配置管理、数据库编排等功能。 项目结构上采取了前后端分离的方式，前端使用 Vue 框架，后端采用 Spring Boot 框架。使用标准的 Maven 方式进行打包，部署，同时也可以采用前后端分离的方式本地运行，方便开发调试。 4.5. ShardingSphere-UI 267 目录后重新运行。错误日志如下： ERROR Failed to compile with 17 errors error in ./src/views/orchestration/module/instance.vue?vue&type=style&index=0& id=9e59b740&lang=scss&scoped=true& Module build failed (from ./node_module

1.5 How to Contribute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2 Design Philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2.1 Connect: Integration Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327 6.5.1 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327 Test case . 467 xiv 1 Overview This chapter mainly introduces what Apache ShardingSphere is, as well as its design philosophy and deployment architecture. For frequently asked questions, please refer to FAQ. 1

74 Function list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Design concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Unsupported item suitable for Internet scenarios, and provides a diversified job ecosystem through open architecture design. It uses a unified job API for each project. Developers only need code one time and can deploy at Open Ecosystem Flexible customized jobs is the most important design change in ElasticJob 3.x . The new version is based on the design concept of the Apache ShardingSphere pluggable architecture, and

planning and so on. 3.3. DistSQL 14 Apache ShardingSphere document, v5.0.0 3.3.3 Goal It is the design goal of DistSQL to break the boundary between middleware and database and let developers use Apache expansion or component replacement. 3.4.2 Challenges Pluggable architecture is very difficult to design for the project architecture. It needs to make each mod‐ ule decouple to independent and imperceptible totally, and enables appendable functions in a way of superposition through a pluggable kernel. Design an architecture to completely isolate each function, not only can stimulate the enthusiasm of the

1.3 Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 Design Philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2.1 Connect: Integration Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354 6.5.1 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354 Test case . platform and further building an ecosystem around the upper layer of the platform. Database Plus, the design phi‐ losophy of Apache ShardingSphere, aims at building the standard and ecosystem on the upper

Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 Design Philosophy 4 2.1 Connect: Create database upper level standard . . . . . . . . . . . . . . . . Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 462 11.5.1 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 462 Test case . platform and further building an ecosystem around the upper layer of the platform. Database Plus, the design phi‐ losophy of Apache ShardingSphere, aims at building the standard and ecosystem on the upper

Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 Design Philosophy 4 2.1 Connect: Create database upper level standard . . . . . . . . . . . . . . . . Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 491 11.5.1 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 491 Test case . platform and further building an ecosystem around the upper layer of the platform. Database Plus, the design phi‐ losophy of Apache ShardingSphere, aims at building the standard and ecosystem on the upper

planning and so on. 3.3. DistSQL 14 Apache ShardingSphere document, v5.1.1 3.3.3 Goal It is the design goal of DistSQL to break the boundary between middleware and database and let developers use Apache expansion or component replacement. 3.4.2 Challenges Pluggable architecture is very difficult to design for the project architecture. It needs to make each mod‐ ule decouple to independent and imperceptible totally, and enables appendable functions in a way of superposition through a pluggable kernel. Design an architecture to completely isolate each function, not only can stimulate the enthusiasm of the

planning and so on. 3.3. DistSQL 14 Apache ShardingSphere document, v5.1.2 3.3.3 Goal It is the design goal of DistSQL to break the boundary between middleware and database and let developers use Apache expansion or component replacement. 3.4.2 Challenges Pluggable architecture is very difficult to design for the project architecture. It needs to make each mod‐ ule decouple to independent and imperceptible totally, and enables appendable functions in a way of superposition through a pluggable kernel. Design an architecture to completely isolate each function, not only can stimulate the enthusiasm of the