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.
Tencentdisaster recoverylarge-scale migration
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