10. System Architecture Media Masters Album Art Transcoded Music User Lockers MySQL Web Servers Mobile Servers Playlist Gen/ Reco Engine User Upload Processing HA Proxy Cloud Storage Content Mgt User Forums Memcached Admin/ Monitoring ZenOS Transcoding
11. Queue-Based Autoscaling SQS Requestor Requestor SQS SQS – Transcoding Requests BitGrinder’ EggBeater Starts/Stops Bitgrinders BitGrinder 2 BitGrinder N Evaluates Queue Backlog Put Get Put Output File Input File S3