Home / Architecture Explorer / Slack architecture Slack architecture On the roadmap: Interview Ready · step 3: Feeds, chat and notifications
Real-time messaging on top of sharded MySQL. 9 components, 2 request walk-throughs.
0 of 2 requests followed
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Click any component on the map to see what it does and how it connects. Or switch to Follow a request for a guided walk through one real journey.
All components
Apps Flannel edge cache Gateway servers Web app (Hack) Channel servers Vitess (MySQL) Job queue (Kafka and Redis) Job workers Search index (Solr)
A simplified model based on public talks and engineering write-ups. Real systems are larger and change over time.