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RDS (Features (Manages patching and backups, Offers sync replication of…
RDS
Features
Manages patching and backups
Offers sync replication of data
Part of free tier
EC2 AMI != RDS
Can run hybrid configs on outpost and RDS on vmware
RDS instances support more than one db or schemas
retrieve endpoint details via DescribeDBInstance API or describe-db-instance
Antipatterns
Application only needs index and query >> DynanoDB
Numerous blobs >> S3
Automated scalability - RDS is requires outage
Sybase\DB2 >> EC2 manual install
Complete control
Applications that dont need joins or complex transactions
Use cases
For rehosting - no code refactoring
DB that need ACID
Automicity - all or no data comminted
Consistency- create a consistent new state or role back
Isolated - A transaction in process and is isolated from
other transactions
Durability - Committed data is saved by system in event
of a failure is the correct state.
MySQL
MariaDB
OracleSQL
PostgresSQL
How many DB instances can I run with Amazon RDS?