high-volume-design

Scale up

• horizontal

• vertical

• https://www.fromdev.com/2013/07/architect-interview-questions-and-answers.html

Load balancer

Statelessness

Caches

• Use cache first, then go to workers

Map-Reduce

Async where possible

• Perform task at later date, which can then be batched and use a message queue and schedule to happen at an optimum time

Queues

Object pooling and singletons

Thread pooling

Data in RAM

Data grid

• http://geode.apache.org/
• write to database async in batches

Event processing

• keep more recent/used data in easy to access area

Database design

Indexing

File based

Partitioning

Links

• https://dzone.com/articles/scalable-system-design
• https://www.javacodegeeks.com/2012/04/building-high-performance-applications.html
• https://stackoverflow.com/questions/8058916/strategies-for-high-throughput-transactional-processing

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