AppEngine is Google Cloud Platform&#x27;s PaaS offering. Its the oldest product on Google Cloud Platform, but its not one of the ones mentioned that Spotify is using (the Spotify post doesn&#x27;t talk much about the products, but Google&#x27;s [0] does.)<p>The Google Cloud Platform services they are identified as using are: Cloud Storage, Compute Engine, Cloud Datastore, Cloud Bigtable, Direct Peering, Cloud VPN, Cloud Router, Cloud Pub&#x2F;Sub, Cloud Dataflow, BigQuery, and Cloud Dataproc.<p>So, its not surprising that they might be doing something that Google AppEngine doesn&#x27;t support particularly well.<p>[0] <a href="http:&#x2F;&#x2F;googlecloudplatform.blogspot.com&#x2F;2016&#x2F;02&#x2F;Spotify-chooses-Google-Cloud-Platform-to-power-data-infrastructure.html" rel="nofollow">http:&#x2F;&#x2F;googlecloudplatform.blogspot.com&#x2F;2016&#x2F;02&#x2F;Spotify-choo...</a>