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lecture · 2:42 · 0 checkpoints · browser voice

2 million connections, one server

How one WhatsApp server held 2,277,845 open connections in January 2012 with CPU to spare, and how, two years later, 32 engineers were behind a service with over 450 million monthly users.

01 · One server

2,277,845 connections. One server.

2,277,845 connections, one server

January 2012.