AWS on PIGSTY

AWS’s Official DynamoDB Outage Postmortem

Fri, 24 Oct 2025 00:00:00 +0000

AWS finally published the Oct 20 us-east-1 postmortem. I translated the key parts and added commentary on how one DNS bug toppled half the internet. Read more

How One AWS DNS Failure Cascaded Across Half the Internet

Tue, 21 Oct 2025 00:00:00 +0000

us-east-1’s DNS control plane faceplanted for 15 hours and dragged 142 AWS services—and a good chunk of the public internet—down with it. Here’s the forensic tour. Read more

How Ahrefs Saved US$400M by NOT Going to the Cloud

Wed, 22 May 2024 00:00:00 +0000

After Alibaba-Cloud’s epic global outage on Double 11, setting industry records, how should we evaluate this incident and what lessons can we learn from it? Read more

Cloud Dark Forest: Exploding Cloud Bills with Just S3 Bucket Names

Tue, 30 Apr 2024 00:00:00 +0000

The dark forest law has emerged on public cloud: Anyone who knows your S3 object storage bucket name can explode your cloud bill. Read more

Are Cloud Databases an IQ Tax?

Mon, 30 Jan 2023 00:00:00 +0000

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? Read more