This article is pretty old (2015). As I was reading through it, I got a pretty big surprise that Twitter was still using Storm until I checked the date.
Since I could't correct the broken links I submitted the correct version to:<p><a href="https://news.ycombinator.com/item?id=29233463" rel="nofollow">https://news.ycombinator.com/item?id=29233463</a>