[SAA + SAP] 17. RDS - Aurora

  • Faster than MySQL... Postgres
  • Failover faster
  • CRR: entire database is copied (not select tables)
  • Load / Offload data directly from / to S3: efficient use of resources

  • Support for Cross Region Replication as other RDS database

  • RDS can have 5 replicas
  • Aurora can have 15 repliacs

 

  • Has Writer Endpoint and Reader Endpoint

  • When the CPU usage increase, will add more DB to replicas, those DB will be registered into Reader Endpoint

  • Once you use Custom Endpoint, then Reader endpoint is not used
  • You can define other type of instance (db.r5.2xlarge...)
  • You can combine multi cusotm endpoints

 

  • Client has multi endpoints for DB Connection
  • ONce one fail, it will do faster failover to another one

  • Global Aurora is a new recommended way to do CRR

 

Aurora max size is 64 TB.

 

 They need to either be connected to CloudWatch Alarms or talk through an HTTP enabled application as a proxy to checking the health of your RDS database

posted @ 2021-08-03 02:15  Zhentiw  阅读(110)  评论(0)  编辑  收藏  举报