🚨💸 Kafka vs Pub/Sub in 2025: How €600k Vanished Overnight — And How Pub/Sub Saved the Day

Picture this:

✅ Influencer campaign spikes traffic 5×
✅ Kafka partitions jam, brokers hit read-only mode
✅ Checkout returns 5xx, €600k revenue lost in hours
⚡ The fix? Move to Google Pub/Sub:

• Auto-shards at peak without manual rebalances
• Regional replication built-in
• p95 latency down from 400ms → 130ms

• On-call SREs finally sleep at night
  💡 Lessons:

• Partition balance is your silent killer

• Disks fill before you see CPU alerts

• Managed ≠ luxury, it’s survival insurance
  👉 Still clinging to DIY queues? Time to rethink before your next big spike.
  https://blog.det.life/kafka-vs-pub-sub-in-2025-how-a-message-queue-crashed-a-fintech-launch-while-a-serverless-bus-896fe0a9ae8e