DDS联通测试培训胶片(1)

HUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSecurityLevel:Slidetitle:40-47ptSlidesubtitle:26-30ptColor::whiteCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:Arial开发维护指南——HUAWEITelco-SOAPDUHUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.----------------Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.Page2目录DDS部署及使用51产品集成的困境与挑战DDS特性介绍3DDS开发指南4DDS产品定位2HUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.----------------Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.产品集成的困境和挑战Page3IT系统集中化建设例如：联通CRM&Billing集中化海量用户互联网应用例如：移动的各类基地企业服务集成，ICT融合越来越深入，数据需要集中建设集中服务异构数据库，使得数据复杂性的不断增加客户不想直面众多的、异构的数据CRMASPISP/ICPORTALHUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.----------------Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.Page4目录DDS部署及使用52DDS产品定位DDS特性介绍3DDS开发指南4产品集成的困境与挑战1HUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.----------------Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.DDS产品定位Page51、提供透明的数据访问接口2、支持水平/垂直分库，支持海量数据储存和高并发数据访问3、提供多种数据分库策略，满足不同业务的分库要求4、支持读写分离和读负载均衡策略5、提供多数据源数据映射模型，支持异构数据源DDS集群Application…DDS1……JDBCApplicationApplicationDDS2DDS3RDBMSRDBMSRDBMS……HUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.----------------Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.DDS几个重要概念•数据源（DataSource）：即数据库的来源，对应Oracle的一个User，或者MySQL的一个DataBase。•数据节点（DataNode）：一组具有相同数据副本的数据源的分组，在DDS中通过它来提供数据读写分离能力。•数据表分区（TablePartition）：将逻辑数据表的记录按照一种规则分成多个分区，每个分区分别存放到一个数据节点上。•分区规则（ShardingRule）:用于对数据表记录进行分区的规则。DDS支持的分区规则包含Range/Hash两种。•分区键（ShardingKey）：参与数据表记录进行分区计算的字段集合•Schema：DDS中提供给客户进行资源（例如数据表，Sequence等）管理的一个逻辑对象，客户可创建多个Schema管理不同业务中的表或其它资源。•路由（Route）：根据分区键值将SQL操作分发到对应的数据节点去执行。Page6Read-dbRead-dbWrite-dbRead-dbRead-dbWrite-db数据源数据节点T_CUSTOMER(userid,username,…)分区规则分区键SQL路由HUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.----------------Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.Page7目录DDS部署及使用53DDS特性介绍产品集成的困境与挑战1DDS开发指南4DDS产品定位2HUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.----------------Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.DDS功能视图Page8DDSServerSessionManagementLoadBalanceCursor