Building event streaming platform for apps like spotify and amazon prime to track user events and aggregate the TopN songs played world wide in Realtime with freshness less than 30 mins.
Highly Available Accurate Scalable Fault-Tolerant
Total Users - 550 Million
Max Active Users At Once - 100 Million
Events/Secs - 100 Million
Volume/Sec - 25 Gb/sec
This can be achieved in both batch and streaming modes.