From 4-hour delay to 2-second latency
A B2B SaaS had a 4-hour analytics delay. Enterprise clients couldn't react to live data — a critical gap when competitors were shipping live dashboards.
Three-layer system: Go ingestion service (HTTP + Kafka), ClickHouse analytics store, WebSocket gateway for live dashboard streaming with configurable refresh.
Go for concurrency (50k+ connections per node). ClickHouse over TimescaleDB for analytical query patterns. Smart WebSocket diffing — only changed data points sent, reducing bandwidth 85%.
Latency from 4 hours to under 2 seconds. 2M+ events/hour at 99.97% uptime. Dashboard loads under 400ms. 15% churn reduction within two quarters.
Let's discuss your project — I'll tell you what's realistic and how long it'll take.
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