Delivery guarantees
WhatsApp: delivery
- Sockets in memory
- Store and forward
- Receipts and repeats
- Groups of 1,000
- One copy per device
- Final test
Deliver chat messages between phones. Hold 2M open sockets, keep messages for offline recipients, stop repeats, send to groups of 1,000, and give each of 4 devices its own copy.
Final testA delivery node crashes at peak: messages x1.5 for 10 s, and the delivery part of one device stops for 12 s. Your final board runs once more with a new traffic seed.
Stage 5 of 5 · 8 parts given · 15,020 requests/s
Progress on this page stays on this device.