mode of logging in to a specific server cannot suite to large number of dis‐ tributed servers. Telemetry through observable data is the recommended operation and maintenance mode for them. Tracking, metrics governance module together, the configuration of persistence in the configuration center is YAML format. YAML configuration is the most common configuration mode, which can omit the complexity of pro‐ sphere-jdbc-core ${shardingsphere.version} YAML Format ShardingSphere‐JDBC YAML file consists of database name, mode configuration, data source map, rule

they need to configure resources and rules through YAML file (or registry center). However, the format of YAML and habits changed by using registry center are not friendly to DBA. DistSQL enables users mode of logging in to a specific server cannot suite to large number of dis‐ tributed servers. Telemetry through observable data is the recommended operation and maintenance mode for them. Tracking, metrics ratelimiting: > 0, bound‐ ary:0.0001 ‐ 1.0 1（const type） otel.reso urce.attributes open‐ telemetry properties String key value pair (, split) servi ce.name=shardi ngsphere‐ agent otel. traces

mode of logging in to a specific server cannot suite to large number of dis‐ tributed servers. Telemetry through observable data is the recommended operation and maintenance mode for them. Tracking, metrics governance module together, the configuration of persistence in the configuration center is YAML format. YAML configuration is the most common configuration mode, which can omit the complexity of pro‐ sphere-jdbc-core ${shardingsphere.version} YAML Format ShardingSphere‐JDBC YAML file consists of database name, mode configuration, data source map, rule

they need to configure resources and rules through YAML file (or registry center). However, the format of YAML and habits changed by using registry center are not friendly to DBA. DistSQL enables users mode of logging in to a specific server cannot suite to large number of dis‐ tributed servers. Telemetry through observable data is the recommended operation and maintenance mode for them. Tracking, metrics ratelimiting: > 0, bound‐ ary:0.0001 ‐ 1.0 1 (const type) otel.reso urce.attributes open‐ telemetry properties String key value pair (, split) servi ce.name=shardi ngsphere‐ agent otel. traces

mode of logging in to a specific server cannot suite to large number of dis‐ tributed servers. Telemetry through observable data is the recommended operation and maintenance 8.10. Observability 52 Apache governance module together, the configuration of persistence in the configuration center is YAML format. Note: The YAML configuration file supports more than 3MB of configuration content. YAML configuration sphere-jdbc-core ${shardingsphere.version} YAML Format ShardingSphere‐JDBC YAML file consists of database name, mode configuration, data source map, rule

mode of logging in to a specific server cannot suite to large number of dis‐ tributed servers. Telemetry through observable data is the recommended operation and maintenance 8.10. Observability 52 Apache governance module together, the configuration of persistence in the configuration center is YAML format. Note: The YAML configuration file supports more than 3MB of configuration content. YAML configuration shardingsphere-jdbc ${shardingsphere.version} YAML Format ShardingSphere‐JDBC YAML file consists of database name, mode configuration, data source map, rule

仅负责产生具有价值的数据，并通过标准 协议或插件化的方式递交给相关系统。 Tracing 用于获取 SQL 解析与 SQL 执行的链路跟踪信息。Apache ShardingSphere 默认提供了对 Open‐ Telemetry，SkyWalking 的支持，也支持用户通过插件化的方式开发自定义的 Tracing 组件。 • 使用 OpenTelemetry OpenTelemetry 在 2019 年由 OpenTracing ## @param compute.serverConfig.authority.users[0].user Username,authorized host for compute node. Format: @ hostname is % or empty string means do not care about authorized host ## PARSE 相关链接 • 保留字 FORMAT SQL 描述 FORMAT SQL 语法用于解析并输出格式化后的 SQL 语句。 语法 FormatSql ::= 'FORMAT' sqlStatement 返回值说明 列 说明 formatted_result 格式化后的 SQL 语句 示例 • 解析并输出格式化后的 SQL 语句 FORMAT SELECT * FROM t_order;

仅负责产生具有价值的数据，并通过标准 协议或插件化的方式递交给相关系统。 Tracing 用于获取 SQL 解析与 SQL 执行的链路跟踪信息。Apache ShardingSphere 默认提供了对 Open‐ Telemetry，SkyWalking 的支持，也支持用户通过插件化的方式开发自定义的 Tracing 组件。 • 使用 OpenTelemetry OpenTelemetry 在 2019 年由 OpenTracing ## @param compute.serverConfig.authority.users[0].user Username,authorized host for compute node. Format: @ hostname is % or empty string means do not care about authorized host ## PARSE 相关链接 • 保留字 FORMAT SQL 描述 FORMAT SQL 语法用于解析并输出格式化后的 SQL 语句。 语法 FormatSql ::= 'FORMAT' sqlStatement 返回值说明 列 说明 formatted_result 格式化后的 SQL 语句 示例 • 解析并输出格式化后的 SQL 语句 FORMAT SELECT * FROM t_order;

## @param compute.serverConfig.authority.users[0].user Username,authorized host for compute node. Format: @ hostname is % or empty string means do not care about authorized host ## 化、执行计划预览等功能。 SQL 工具 语句 说明 示例 PARSE SQL 解析 SQL 并输出抽象语法树 PARSE SELECT * FROM t_order FORMAT SQL 解析并输出格式化后的 SQL 语句 FORMAT SELECT * FROM t_order PREVIEW SQL 预览 SQL 执行计划 PREVIEW SELECT * FROM t_order 使用 本章节将结合 2.0 权限要求 1. 开启 binlog MySQL 5.7 my.cnf 示例配置： [mysqld] server-id=1 log-bin=mysql-bin binlog-format=row binlog-row-image=full max_connections=600 执行以下命令，确认是否有开启 binlog： show variables like '%log_bin%';

仅负责产生具有价值的数据，并通过标准 协议或插件化的方式递交给相关系统。 Tracing 用于获取 SQL 解析与 SQL 执行的链路跟踪信息。Apache ShardingSphere 默认提供了对 Open‐ Telemetry，SkyWalking 的支持，也支持用户通过插件化的方式开发自定义的 Tracing 组件。 • 使用 OpenTelemetry OpenTelemetry 在 2019 年由 OpenTracing ## @param compute.serverConfig.authority.users[0].user Username,authorized host for compute node. Format: @ hostname is % or empty string means do not care about authorized host ## PARSE 相关链接 • 保留字 FORMAT SQL 描述 FORMAT SQL 语法用于解析并输出格式化后的 SQL 语句。 语法 FormatSql ::= 'FORMAT' sqlStatement 返回值说明 列 说明 formatted_result 格式化后的 SQL 语句 示例 • 解析并输出格式化后的 SQL 语句 FORMAT SELECT * FROM t_order;