· 2 min read
What does an availability zone promise?
A London power event in one zone became eight hours of region-wide errors. A briefing on what a zone isolates, and where that isolation quietly leaks.
#resilience#availability#incident-analysis
Tagged: resilience
3 articles
· 3 min read
What happens when a call has no timeout?
CircleCI's July 2 outage came from connections that never timed out. A slow dependency became an unavailable product, and the review question is which of your calls wait forever.
#resilience#timeouts#incident-analysis
· 2 min read
Is multi-region worth it?
The most expensive default in modern architecture. What the second region truly costs, what it truly buys, and the three cases where it earns its keep.
#scaling#multi-region#resilience