AWS Solutions Architects hate him. Unprovisioned AWS launched Provisioned Concurrency for Lambda at re:Invent 2019 last week — essentially a way to keep warm Lambdas provisioned for you so you don’t experience any cold start latency in your function invocations. It also may save you money if you happen to have…

Sometime in the last few days, docker pulls of lambci/lambda hit 35 million. Which is more than twice what it was six months ago: I don’t know where serverless is on the hype cycle these days, but if local testing and building of Lambda services is anything to go…

A month ago I dug into the nodejs10.x runtime and highlighted some issues with it — including some bugs and style problems. I’m glad to now report that all the issues I raised have been addressed in the latest runtime code, which should be running on all nodejs10.x …

Update 2019–06–25: All of the issues I raise here have been addressed in the latest runtime! I’ll leave this story here for posterity, but it no longer reflects the current state of affairs. See my latest blog post on how AWS addressed the issues I raise here. Last week AWS…

I’m excited to share a hyperparameter optimization method we use at Bustle to train text classification models on AWS Lambda incredibly quickly— an implementation of the recently released Asynchronous Successive Halving Algorithm paper by Liam Li et al, which proved more effective than Google’s own internal Vizier tool. …

I’m excited to announce the first release of LambCI, an open-source continuous integration tool built on AWS Lambda 🎉 LambCI is a tool I began building over a year ago to run tests on our pull requests and branches at Uniqlo Mobile. …