reached. The registration cen‐ ter is only used for job registration and monitoring information storage. The main job node is only used to handle functions such as sharding and cleaning. Elastic Distributed ShardingSphere ElasticJob document Configuration spring: datasource: url: jdbc:h2:mem:job_event_storage driver-class-name: org.h2.Driver username: sa password: elasticjob: tracing: type: RDB Job Default Value Description type String The type of event tracing storage adapter storage Generics Type The object of event tracing storage adapter 6.2.5 Java API Registry Center Configuration The component

${springboot.version} 配置 spring: datasource: url: jdbc:h2:mem:job_event_storage driver-class-name: org.h2.Driver username: sa password: elasticjob: tracing: type: RDB 作业启动 MAX_VALUE 最后一个作业执行后的执行方法的超时 毫秒数 6.2.4 事件追踪配置项 可配置属性 属性名 类型 缺省值 描述 type String 事件追踪存储适配器类型 storage 泛型 事件追踪存储适配器对象 6.2.5 Java API 注册中心配置 用于注册和协调作业分布式行为的组件，目前仅支持 ZooKeeper。 类名称：org.apache.shardingsphere ${latest.release.version} 可配置属性： 属性名 说明 是否必填 默认值 dingtalk.webhook 钉 钉 机 器 人 的 web‐ hook 地址 是 • dingtalk.keyword 自定义关键词 否 null dingtalk.secret 签名的密钥 否 null dingtalk.connect TimeoutMilliseconds

. . 43 Overloaded compute node protection . . . . . . . . . . . . . . . . . . . . . . . . 43 Storage node traffic limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 8.5.5 Core Concept /nodes/compute_nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497 /nodes/storage_nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497 12.4 Sharding . . . ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a database or does not register a storage unit, the client connection will fail? . . . . . . . . . . . . . . . . . . . . 549 13.4 Sharding

. . 43 Overloaded compute node protection . . . . . . . . . . . . . . . . . . . . . . . . 43 Storage node traffic limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 8.5.5 Core Concept ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a database or does not register a storage unit, the client connection will fail? . . . . . . . . . . . . . . . . . . . . 578 13.3 Sharding a data source using DistSQL? . . . . . . . . . . . . . . . . . 581 13.5.2 DistSQL How to solve Storage unit [xxx] is still used by [Sin- gleRule]. exception when dropping a data source using DistSQL

/nodes/compute_nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461 /nodes/storage_nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461 12.4 数据分片 . . . . . Proxy 使 用 第 三 方 数 据 库 工 具 连 接 ShardingSphere‐Proxy 时， 如 果 ShardingSphere‐Proxy 没有创建 Database 或者没有注册 Storage Unit，连 接失败？ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 508 13 . . . . . . . . . . . . . . . . . . . . . . . . . . 510 13.5.2 DistSQL 使用 DistSQL 删除 storage unit 时，出现 Storage unit [xxx] is still used by [SingleRule]。 . . . . . . . . . . . . . . . . . . . . . 510

cloud native. Apache ShardingSphere aiming at reasonably making full use of the computation and storage capacity of existed database in distributed system, rather than a totally new database. As the cornerstone This can guar‐ antee the effectiveness in index field insertion, like the sequence of MySQL Innodb storage engine. In the sequence generated with snowflake algorithm, binary form has 4 parts, 1 bit sign is set to false, for business applications, the plain text column of pwd is still used for query storage, but the cipher text data of the new data is additionally stored on the underlying database table

Proxy 使 用 第 三 方 数 据 库 工 具 连 接 ShardingSphere‐Proxy 时， 如 果 ShardingSphere‐Proxy 没有创建 Database 或者没有注册 Storage Unit，连 接失败？ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533 13 . . . . . . . . . . . . . . . . . . . . . . . . . . 537 13.5.2 DistSQL 使用 DistSQL 删除 storage unit 时，出现 Storage unit [xxx] is still used by [SingleRule]。 . . . . . . . . . . . . . . . . . . . . . 537 进行了“大爆炸”升级，涉及大量复杂情况。 ShardingSphere 的 XA 分布式事务尚未在 Spring Boot OSS 3 上就绪，此限制同样适用于其他基于 Jakarta EE 9+ 的 Web Framework，如 Quarkus 3，Micronaut Framework 4 和 Helidon 3。 用户仅需要配置如下。

/nodes/compute_nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243 /nodes/storage_nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243 7.2 Sharding . . . Enhance and Pluggable. • Connect: Flexible adaptation of database protocol, SQL dialect and database storage. It can quickly connect applications and heterogeneous databases quickly. • Enhance: Capture database to integrate into the current database ecosystem. It includes database protocol, SQL parser and storage adapter. 3.4. Pluggable Architecture 17 4 Features Apache ShardingSphere provides a variety of

/nodes/compute_nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 /nodes/storage_nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 7.2 Sharding . . . Enhance and Pluggable. • Connect: Flexible adaptation of database protocol, SQL dialect and database storage. It can quickly connect applications and heterogeneous databases quickly. • Enhance: Capture database to integrate into the current database ecosystem. It includes database protocol, SQL parser and storage adapter. 3.4. Pluggable Architecture 17 4 Features Apache ShardingSphere provides a variety of

Enhance and Pluggable. • Link: Flexible adaptation of database protocol, SQL dialect and database storage. It can quickly link applications and multi‐mode heterogeneous databases quickly. • Enhance: Capture to integrate into the current database ecosystem. It includes database protocol, SQL parser and storage adapter. 3.4. Pluggable Architecture 17 4 Features Apache ShardingSphere provides a variety of and push evolution of human society’s cooperation mode. Data is increasing explosively, the data storage and computing method are facing innovation all the time. Transaction, big data, association analysis