Status Updates From Designing Distributed Syste...

“The absence of errors is an error”

This was surprisingly better than expected.

Gave me what I was looking for and more. Very up to date and current. I read the latest edition.

Though short and sweet, the latter section on deploying AI models for inference and training was so unexpected and worth the price of the whole book. 💡🥰

“Ultimately in designing a distributed ownership system, you have to choose between at most once processing(which is possible but requires you to lose availability for a period of time) or you can have at least once processing which can provide higher availability but will occasionally result in double processing of some request.”

💡

“Replicated services are primarily used for stateless services while shards are used for stateful service.

Sharding is not exclusive to stateful services though. They can also be used to isolate poisoned requests”

💡

Idempotency is the notion that whether an action is performed a single times or many times, the result is identical.

Example: x=5(idempotent) vs. x=x+1 (not idempotent)

If we know that an operation is idempotent, in the face of failures, we can simply repeat it until it succeeds.

❤️😍🥰