A common issue noticed when reviewing pull requests is the understanding of the boundaries of Futures. In most cases, people take for granted that given a function with this signature the full body of the function will be executed in the Future. Let’s look closely into this with a couple of examples Example 1 Here’s …
Dealing with memory leaks
Background This post describes my experience playing around with Scala and some of its concepts like tail recursion and futures. It also offers an opportunity to see how a memory leak can happen and how to analyse it. I created a simple web crawler that takes a seed link (e.g. http://www.bbc.co.uk) and then, recursively (using tail recursion), collects all …