When a software collapses, it’s usually due to it being no longer maintainable because of complexity. Brian Kernighan, the creator of AWK programming language, puts it quite explicitly: "Controlling complexity is the essence of computer programming".
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At Evojam we always seize opportunities for R&D. So when a former client asked us for cooperation on an existing project, which involved a 1 billion member social network, we jumped at the opportunity. We joined the team and did our best to fix bugs and solve data consistency, performance and reliability issues. Additionally, we presented a more effective approach to the application’s architecture. This article briefly covers our journey through the 1 billion member social network.
We've been using Play Framework with Elasticsearch and elastic4s for a while. Getting it all to work together requires some boilerplate code, though. We decided to create a small library that would make things easier in future projects. We learned some lessons about building Scala libraries along the way.