Design Performant Architecture Flashcards
3 design pillar
- Performant storage and database
- Caching
- Design for elasticity and scalability
Where to store static content?
S3
S3 bucket is always belongs to …
a single region
On S3 you have to pay for 3 things
- Storage GB/month
- Transfer out of the region
- API(PUT,COPY,POST,LIST,GET) requests
On S3 you don’t have to pay for
- Transfer into S3
2. Transfer out to CloudFront or into the same region
3 database offering
- Amazon Relational Database
- DynamoDB
- Redshift
Redshift is designed to
analytics queries (it gives you an sql interface)
Amazon RDS
is a managed relational database
Use Amazon RDS if you need
- Complex queries/join operations
2. Transactions
Amazon RDS will not scale …
beyond a single master instance
For high volume read/write, the database is …
DynamoDB
2 Scaling options for RDS
- Larger master instance
2. Read replicas
Which Amazon RDS database engines support read replicas?
- MySQL
- MariaDB
- PostgreSQL
- Aurora
2 ElasticCache Engines
- Memcached
2. Redis
Why use CloudFront to dynamic content?
Use the Amazon infrastructure instead of public internet
What can be origin for static content for CloudFront?
S3
What can be origin for dynamic content for CloudFront?
EC2, ELB, (some) HTTP server
