// TOPIC
#scale
2 articles
◆◆IntermediateMetaYouTube
01Design a Distributed Counter (view / like counts)
Count likes and views at millions of increments per second without a single hot row melting. Sharded counters, write batching, and approximate vs exact counts.
#interview#scale#consistency
19 min◆◆◆AdvancedTwitchYouTube
02Design a Live Streaming System (Twitch)
Ingest one broadcaster and fan out to millions of viewers with seconds of latency. Transcoding ladders, HLS/DASH segmenting, CDN fan-out, and live chat.
#interview#media#streaming
22 min