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System Architecture

RDS provides primary and secondary availability architectures by default, and there are two available deployment, namely, single-availability zone deployment and multiple availability zone deployment:

Single Availability Zone Deployment

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Multiple Availability Zone Deployment

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Architecture Analysis

  • DNS: Domain Name Resolution service, used to access RDS instance through domain name in the intranet.
  • DMS: Database Management service, providing a WEB management interface, convenient for simple management on cloud database instances.
  • Console: JD Cloud console service, providing RDS management interface.
  • Master Node and Subnode: The default master node provides external services, and the subnode exists as a disaster recovery instance. When the master node fails to provide services, the subnode can be promoted as a new master node to ensure uninterrupted user services.
  • Monitoring Service: To collect RDS instance information and physical machine information.
  • Account Management Service: It is responsible for the creation, deletion and authorization of the RDS instance account.
  • Database Management Service: It is responsible for the creation, deletion, and authorization of the RDS instance database.
  • Backup Service: Automatic scheduled backup, supporting customized backup.
  • Performance Optimization Service: To collect RDS slow log information for analysis and system optimization.
  • SQL Audit: It is responsible for collecting SQL execution statements for safety audit.
Update Time:2019-07-01 17:59:23