Reliability
Browse all articles, tutorials, and guides about Reliability
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DevOps
|9 min read
PostgreSQL 18.2 Broke Standbys: The 18.x Upgrade Footguns
PostgreSQL 18.2 shipped regressions bad enough to force an out-of-cycle 18.3: halted standbys, substring crashes, and a pg_trgm segfault. Here is what went wrong and the quieter Postgres 18 upgrade traps to check before you patch.
AWS
|13 min read
When One Data Center Room Got Hot: AWS US-EAST-1, Coinbase, and the DR Drill That Was Not
On May 7, 2026, cooling failed in a single hall of one US-EAST-1 data center. Coinbase, FanDuel, and CME Group went down for hours, and Coinbase publicly confirmed their backup systems did not work as expected. Here is what happened, the multi-AZ checklist that would have caught it, and the AWS Fault Injection Simulator commands to run the drill before the next thermal event.