Using GraalVM to run Native Java in AWS Lambda with Golang

Using GraalVM to run Native Java in AWS Lambda with Golang

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This title might seem like generated by a Markov Chain on Hacker News submissions, but it is real. If you are deploying serverless applications in AWS Lambda and using Java, you are well aware of cold start problems. Cold start happens because of the way the Java Virtual Machine works, it kicks in JIT (Just-in-time), and…

Using Countdown Clock Data to Understand the New York City Subway

Using Countdown Clock Data to Understand the New York City Subway

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If you’ve been on a New York City subway platform since January 2018, you should have noticed a countdown clock that displayed an estimate of when the next train would arrive. Although there’s no official record of when trains actually stopped at each station, the countdown clock data can be used to approximate. Over the…