functions of Apache ShardingSphere are pretty complex with hundreds of modules, but the con‐ cepts are very simple and clear. Most modules are horizontal extensions faced to these concepts. The concepts include: consistency, high availability, observability, etc., has become a challenge. This section includes three modules: governance, observability and cluster management(in plan). 4.5. Governance 48 Apache ShardingSphere engine only focuses on message send‐ ing rather than subscribers of the event. Other ShardingSphere modules, such as distributed transac‐ 7.1. Sharding 255 Apache ShardingSphere document, v5.0.0 tions,

Apache ShardingSphere document GraalVM Tracing Agent of GraalVM Native Build Tools. 4. Maven modules such as com.microsoft.sqlserver:mssql-jdbc, represented by the JDBC Driver of MS SQL Server, will ClickHouse dialect through ShardingSphere JDBC, users need to manually in‐ troduce the relevant optional modules and the ClickHouse JDBC driver with the classifier http. In principle, ShardingSphere’s GraalVM Provide module test engine for complex modules. They define SQLs in XML files, engine run for each database independently too It includes SQL parser and SQL rewriter modules. 11.3 Performance Test Provide

Reachability Metadata through the GraalVM Tracing Agent of GraalVM Native Build Tools. 4. Maven modules such as com.microsoft.sqlserver:mssql-jdbc, represented by the JDBC Driver of MS SQL Server, will Provide module test engine for complex modules. They define SQLs in XML files, engine run for each database independently too It includes SQL parser and SQL rewriter modules. 11.3 Performance Test Provide 4 Sysbench Test 11.5 Integration Test 11.5.1 Design The integration testing consists of three modules: test case, test environment and test engine. Test case It is used to define the SQL to be tested

engine only focuses on message send‐ ing rather than subscribers of the event. Other ShardingSphere modules, such as distributed transac‐ 3.1. Sharding 44 Apache ShardingSphere document, v5.0.0-beta tions consistency, high availability, observability, etc., has become a challenge. This section includes three modules: governance, observability and cluster management(in plan). 3.4.2 Challenges The challenges of build with maven, you may fail to run it due to inconsistent version of node. You can clean up node_modules/ directory and run it again. The error log is: ERROR Failed to compile with 17 errors error in

functions of Apache ShardingSphere are pretty complex with hundreds of modules, but the con‐ cepts are very simple and clear. Most modules are horizontal extensions faced to these concepts. The concepts include: engine only focuses on message send‐ ing rather than subscribers of the event. Other ShardingSphere modules, such as distributed transac‐ 7.2. Sharding 265 Apache ShardingSphere document, v5.1.1 tions, Provide module test engine for complex modules. They define SQLs in XML files, engine run for each database independently too It includes SQL parser and SQL rewriter modules. 7.7.3 Performance Test Provide

Provide module test engine for complex modules. They define SQLs in XML files, engine run for each database independently too It includes SQL parser and SQL rewriter modules. 6.3 Performance Test Provide 6.4 Sysbench Test 6.5 Integration Test 6.5.1 Design The integration testing consists of three modules: test case, test environment and test engine. Test case It is used to define the SQL to be tested Apache ShardingSphere document, v5.2.0 6.7 Module Test Provides test engine with each complex modules. 6.7.1 SQL Parser Test Prepare Data Not like Integration test, SQL parse test does not need a

Provide module test engine for complex modules. They define SQLs in XML files, engine run for each database independently too It includes SQL parser and SQL rewriter modules. 6.3 Performance Test Provide 6.4 Sysbench Test 6.5 Integration Test 6.5.1 Design The integration testing consists of three modules: test case, test environment and test engine. Test case It is used to define the SQL to be tested Apache ShardingSphere document, v5.2.1 6.7 Module Test Provides test engine with each complex modules. 6.7.1 SQL Parser Test Prepare Data Not like Integration test, SQL parse test does not need a

functions of Apache ShardingSphere are pretty complex with hundreds of modules, but the con‐ cepts are very simple and clear. Most modules are horizontal extensions faced to these concepts. The concepts include: engine only focuses on message send‐ ing rather than subscribers of the event. Other ShardingSphere modules, such as distributed transac‐ 7.2. Sharding 276 Apache ShardingSphere document, v5.1.2 tions, Provide module test engine for complex modules. They define SQLs in XML files, engine run for each database independently too It includes SQL parser and SQL rewriter modules. 7.7.3 Performance Test Provide

提供并维护。 database-shadow cyborg-database- shadow： 由 Apache ShardingSphere 提供 并维护。 CyborgFlow Modules agent & dashboard cyborg-flow-gateway： 由 Apache APISIX 提 供并维护。 CyborgFlow Process 启动项目时使用 cyborg-agent

user.admin.password=admin 注意事项 1. 若使用 maven 构建后，再进行本地运行前端项目时，可能因为 node 版本不一致导致运行失败，可 以清空 node_modules/ 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 Module build failed (from ./node_modules/sass-loader/dist/cjs.js): Error: Missing binding /shardingsphere/shardingsphere-ui/shardingsphere-ui- frontend/node_modules/node-sass/vendor/darwin-x64-57/binding