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Opinions are my own
yes, you might get spikes despite the warmup if you get concurrent calls. ( you can keep a container up but if your lambda needs to scale up, then when the new container is spun up you will get a cold start.
though, I wouldn't say EC2 solves all the problem, because if it's true that the lambda is always available and you don't have those spikes. you have to think about provisioning the instance. and you might end up paying a lot just to have the instance running even if used once every hour. ( in the end, it's up to costs and benefits. How much are you willing to pay to avoid a cold start (and to have a automatic scalable system)
I recognize all that. I think it is a bummer that they can't say definitively that they will keep a container open for X minutes after its last call. Without that, it is really hard to forecast what your recources will look like. With a startup type app that is getting hardly any traffic, almost every call is going to be a cold start. Your app will look extremely slow and your users are just going to get mad at the app. Oh well... On to experimenting with Fargate and ECS.
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yes, you might get spikes despite the warmup if you get concurrent calls. ( you can keep a container up but if your lambda needs to scale up, then when the new container is spun up you will get a cold start.
though, I wouldn't say EC2 solves all the problem, because if it's true that the lambda is always available and you don't have those spikes. you have to think about provisioning the instance. and you might end up paying a lot just to have the instance running even if used once every hour. ( in the end, it's up to costs and benefits. How much are you willing to pay to avoid a cold start (and to have a automatic scalable system)
I recognize all that. I think it is a bummer that they can't say definitively that they will keep a container open for X minutes after its last call. Without that, it is really hard to forecast what your recources will look like. With a startup type app that is getting hardly any traffic, almost every call is going to be a cold start. Your app will look extremely slow and your users are just going to get mad at the app. Oh well... On to experimenting with Fargate and ECS.