Cloud

The real business model of cloud: **"Cheap" EC2/S3 to attract customers, and fleece with "Expensive" EBS/RDS**

I originally believed that at least in IaaS fundamentals — storage, compute, and networking — public cloud vendors could still make significant contributions. However, my personal experience with Tencent Cloud CDN shook that belief: domestic cloud vendors' products and services are truly unbearable.

Guo Degang has a comedy routine: "Say I tell a rocket scientist, your rocket is no good, the fuel is wrong. I think it should burn wood, better yet coal, and it has to be premium coal, not washed coal. If that scientist takes me seriously, he loses."

Cloud databases' exorbitant markups—sometimes 10x or more—are undoubtedly a scam for users outside the applicable spectrum. But we can dig deeper: why are public clouds, especially cloud databases, like this? And based on their underlying logic, make predictions about the industry's future.

Winter is coming, tech giants are laying off workers entering cost-reduction mode. Can cloud databases, the number one public cloud cash cow, still tell their story? The money you spend on cloud databases for one year is enough to buy several or even dozens of higher-performing servers. **Are you paying an IQ tax by using cloud databases?**

Ant Financial had a self-deprecating joke: besides regulation, only DBAs could bring down Alipay. Although DBA sounds like a profession with glorious history and dim prospects, who knows if it might become trendy again after a few terrifying major cloud database incidents?

I recently witnessed a live cloud database drop-and-run incident. This article discusses how to handle accidentally deleted data when using PostgreSQL in production environments.