Track play counts are essential for providing a good creator experience on the SoundCloud platform. They not only help creators keep track of their most popular songs, but they also give creators a better understanding of their fanbase and global impact. This post is a continuation of an earlier post that discussed what we do at SoundCloud to ensure creators get their play stats (along with their other stats), both reliably and in real time.
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July 10th, 2018 Architecture Data Keeping Counts In Sync By Lorand Kasler
October 16th, 2017 iOS Architecture Leveraging frameworks to speed up our development on iOS - Part 1 By Pedro Piñera
Growth in code bases come with exciting scalability challenges. As the size of our iOS codebase and team at SoundCloud grew, we faced challenges: long compile times and conflicts. Our productivity started to suffer as a result. We took inspiration from the work done in the backend (Building Products at SoundCloud) and applied it to mobile development. The main goal was to get back to a state where development is fun, fast, and would scale as the number of contributors grew. We modularized our iOS project by splitting it up into modules with well-defined responsibilities and public interfaces that interconnect them.
June 20th, 2017 Architecture Data A Better Model of Data Ownership By Joe Kearney
Once upon a time, we had a single monolith of software, one mothership running everything. At SoundCloud, the proliferation of microservices came from moving functionality out of the mothership. There are plenty of benefits to splitting up features in this way. We want the same benefits for our data as well, by defining ownership of datasets and ensuring that the right teams own the right datasets.
December 7th, 2016 Microservices Architecture Finagle Lessons in resilience at SoundCloud By Argha Chattopadhyay
Building and operating services distributed across a network is hard. Failures are inevitable. The way forward is having resiliency as a key part of design decisions.
This post talks about two key aspects of resiliency when doing RPC at scale - the circuit breaker pattern, and its power combined with client-side load balancing.