Efficient Ops

Jan 18, 2016 · Operations

How Tencent Migrated 200M QQ Users After a Tianjin Explosion

When a massive container explosion threatened Tencent's Tianjin data center, the operations team executed a 24‑hour, continent‑wide user migration that moved over 200 million QQ users to Shenzhen and Shanghai without service interruption, showcasing unprecedented disaster‑recovery capabilities.