Author of the “Lambda” piece [0], all of the cost savings I discussed came from API Gateway alone. The lambdas were negligible.
That being said, I don’t think we could have processed the traffic more efficiently in another language.
We were processing 12M requests per hour. You could run the entire thing on 2 vCPU we “over provisioned the crap out of it” by running it on 4 pods w 2 vCPU as the upper request limit.
> Our service didn’t quite grow exponentially in use, but it did hockey stick. It went from free, to a few hundred bucks, to around $12,000 just for API Gateway. No Kinesis. No Lambda. Just API Gateway.
> A good part of this entire system still runs in Lambda, although it will be moving into Elixir over time to make it easier to reason about and develop on locally.
> What everyone should do is think about where your service is going, and can you afford those costs when you get there. If you don’t have a team of ops people and you aren’t familiar with serverful stuff, spending $30k/mo on HTTP requests might be cheaper than an ops team.
That being said, I don’t think we could have processed the traffic more efficiently in another language.
We were processing 12M requests per hour. You could run the entire thing on 2 vCPU we “over provisioned the crap out of it” by running it on 4 pods w 2 vCPU as the upper request limit.
> Our service didn’t quite grow exponentially in use, but it did hockey stick. It went from free, to a few hundred bucks, to around $12,000 just for API Gateway. No Kinesis. No Lambda. Just API Gateway.
> A good part of this entire system still runs in Lambda, although it will be moving into Elixir over time to make it easier to reason about and develop on locally.
> What everyone should do is think about where your service is going, and can you afford those costs when you get there. If you don’t have a team of ops people and you aren’t familiar with serverful stuff, spending $30k/mo on HTTP requests might be cheaper than an ops team.
[0] https://medium.com/coryodaniel/from-erverless-to-elixir-4875...