Reducing 1.1 years of compute time — every single day

Cutting Lambda costs by $1M/year without changing infrastructure or traffic

At first, leveraging a Lambda fan-out pattern for the sake of parallelisation does not seem inherently bad. But what happens when this pattern is blown out of proportion? What happens when a single Lambda call can spin up to 800 child Lambdas and those nested calls can do the same?

Imagine the architecture below - very quickly it becomes a time and mone…