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AWS database - Coggle Diagram

- - - - is not serverless
        
        exception is Aurora
      - they are virtual machines
        
        maintence by AWS
- - - - leadernode
        
        managed client connection and queries
      - compute node
        
        128 nodes
- - - - retention 1 -35days
    - - by user
  - - - they take care of this backup DB including failover
  - - - has unique dns enpoint
      - can have multi - AZ
      - can have read replicas of read replicas
      - can be promoted to primary DB, breaks replication
      - asynchronous
      - can be in 2nd region
      - not possible with SQL server , others yes
      - cane be enabled only if backup turned on in primary DB
- - - - applications done need to read written data 1 sec
    - - applications that need data written data to be read within1 sec
  - - - 10Xperformance
      - milisec to micro sec even after load
      - fullymanaged,HA,in-cache memory
    - - pay per request pricing
      - balanced cost and performance
      - no minimum capacity
      - no charge for read write - only storage /backup
      - best for new product launches
    - - stored 24hrs
    - - for global distributed applications
      - replication latency under 1sec
      - based on dynomodb streams