munity and provide exciting ideas and features. 4.1 DB Compatibility 4.1.1 Background With information technology innovating, more and more applications established in the new fields, prompt and push false name: order_id primaryKey: false /status/compute_nodes It includes running instance information of database access object, with sub‐nodes as the identifiers of currently running instance, which ShardingSphere is not responsible for gathering, storing and demonstrating APM data, but sends the core information of SQL parsing and enforcement to APM to process. In other words, Apache ShardingSphere is only

can include tables, options, ordering items, grouping items, aggregation functions, pagination information, query conditions and placeholders that may be revised. Query Optimization It merges and optimizes includes select items, table information, sharding conditions, auto‐increment primary key information, Order By information, Group By information, and pagination information (Limit, Rownum and Top). One‐ access to each instance. Unicast Route Unicast route is used in the scenario of acquiring the information from some certain physical table. It only requires to acquire data from any physical table in

munity and provide exciting ideas and features. 4.1 DB Compatibility 4.1.1 Background With information technology innovating, more and more applications established in the new fields, prompt and push and can detect the latest updates in the distributed environment in real time, further provide information with control and scheduling. In the overload traffic scenario, circuit breaker and request limiting [(none)]> use test1 │MySQL [(none)]> use test2 Reading table information for completion of table and column names │Reading table information for completion of table and column names You can turn off

munity and provide exciting ideas and features. 4.1 DB Compatibility 4.1.1 Background With information technology innovating, more and more applications established in the new fields, prompt and push and can detect the latest updates in the distributed environment in real time, further provide information with control and scheduling. In the overload traffic scenario, circuit breaker and request limiting [(none)]> use test1 │MySQL [(none)]> use test2 Reading table information for completion of table and column names │Reading table information for completion of table and column names You can turn off

[(none)]> use test1 │MySQL [(none)]> use test2 Reading table information for completion of table and column names │Reading table information for completion of table and column names You can turn off OpenTelemetry - Logging - Prometheus plugins: Prometheus: host: "localhost" port: 9090 props: JVM_INFORMATION_COLLECTOR_ENABLED : "true" Jaeger: host: "localhost" port: 5775 props: SERVICE_NAME: "shardingsphere-agent" ShardingSphere-JDBC 135 Apache ShardingSphere document, v5.1.1 host: "localhost" port: 9090 props: JVM_INFORMATION_COLLECTOR_ENABLED : "true" Jaeger: host: "localhost" port: 5775 props: SERVICE_NAME: "shardingsphere-agent"

[(none)]> use test1 │MySQL [(none)]> use test2 Reading table information for completion of table and column names │Reading table information for completion of table and column names You can turn off OpenTelemetry - Logging - Prometheus plugins: Prometheus: host: "localhost" port: 9090 props: JVM_INFORMATION_COLLECTOR_ENABLED : "true" Jaeger: host: "localhost" port: 5775 props: SERVICE_NAME: "shardingsphere-agent" ShardingSphere-JDBC 134 Apache ShardingSphere document, v5.1.0 host: "localhost" port: 9090 props: JVM_INFORMATION_COLLECTOR_ENABLED : "true" Jaeger: host: "localhost" port: 5775 props: SERVICE_NAME: "shardingsphere-agent"

[(none)]> use test1 │MySQL [(none)]> use test2 Reading table information for completion of table and column names │Reading table information for completion of table and column names You can turn off OpenTelemetry - Logging - Prometheus plugins: Prometheus: host: "localhost" port: 9090 props: JVM_INFORMATION_COLLECTOR_ENABLED : "true" Jaeger: host: "localhost" port: 5775 props: SERVICE_NAME: "shardingsphere-agent" ShardingSphere-JDBC 138 Apache ShardingSphere document, v5.1.2 host: "localhost" port: 9090 props: JVM_INFORMATION_COLLECTOR_ENABLED : "true" Jaeger: host: "localhost" port: 5775 props: SERVICE_NAME: "shardingsphere-agent"

plugins: Prometheus: host: “localhost”#prometheus 暴露的 host port: 9090 #prometheus 暴 露的端口 props: JVM_INFORMATION_COLLECTOR_ENABLED : “true”Jaeger: host: “localhost” #jaeger 服务的 host port: 5775 #jaeger 服务的端口 任务，每个任务依次调用下一个任务：（运行在 ${host‐jenkins} 机器） 1. sysbench_install: 拉取最新代码，打包 Proxy 压缩包 以下任务通过 Jenkins slave 运行在单独的 Sysbench 发压机器：（运行在 ${host‐sysbench} 机器） 2. sysbench_sharding: a. 远程部署各版本 Proxy 的分片场景 b. sysbench_master_slave: a. 远程部署各版本 Proxy 的读写分离场景 b. 执行 Sysbench 命令压测 Proxy c. 执行 Sysbench 命令压测 MySQL Server d. 保存 Sysbench 压测结果 e. 使用画图脚本生成性能曲线和表格 4. sysbench_sharding_master_slave: a. 远程部署各版本 Proxy

Prometheus: host: "localhost" #prometheus 暴露的 host port: 9090 #prometheus 暴露的端口 props: JVM_INFORMATION_COLLECTOR_ENABLED : "true" Jaeger: host: "localhost" #jaeger 服务的 host port: 5775 #jaeger 服务的端口 shardingsphere-4.x 读写分离 配置项说明 # 省略数据源配置，与数据分片一致 spring.shardingsphere.sharding.master-slave-rules.slave-data-source-name>. master-data-source-name= # 主库数据源名称 5.1. ShardingSphere-JDBC 123 Apache sharding.master-slave-rules.slave-data-source-name>. slave-data-source-names[0]= # 从库数据源名称列表 spring.shardingsphere.sharding.master-slave-rules.slave-data-source-name>. slave-data-source-names[1]=

mode and cluster mode. Standalone mode It can achieve data persistence in terms of metadata information such as data sources and rules, but it is not able to synchronize metadata to multiple Apache scenarios. 2.2.2 Limitations Proxy provides limited support for system databases / tables (such as information_schema, pg_catalog). When connecting to Proxy through some graph database clients, the client and can detect the latest updates in the distributed environment in real time, further provide information with control and scheduling. In the overload traffic scenario, circuit breaker and request limiting