Most dashboards answer one question: Is everything okay? During an incident, nobody's asking that. The real question: What broke, where, and what changed? Most dashboards fail at incidents because they were built for monitoring, not troubleshooti...

Backups Don't Save You. Restores Do. We ran a MongoDB restore drill last quarter. It failed — not the restore itself, but the confidence. Nobody in the room was sure the data was actually intact. The service came back up, and we all just stared at ...

1. Node Group Sizing Fewer large nodes vs. many small ones. Textbooks don't cover this. We ran 10 nodes, 32 CPU each. Seemed efficient. Problem: One node dies, 320 CPU worth of workloads need to reschedule. Cluster autoscaler couldn't handle it. ...