Test your multi-AZ resilience at scale with ARC Zonal Shift. Learn how to run realistic 2-3 day AZ evacuation drills on ECS, EKS, and RDS without the drama…

Test your multi-AZ resilience at scale with ARC Zonal Shift. Learn how to run realistic 2-3 day AZ evacuation drills on ECS, EKS, and RDS without the drama…
ORA-01555 isn't a query bug—it's Oracle refusing to return inconsistent data. Learn why undo configuration, not query logic, is almost always the culprit.
https://dev.to/uptimearchitect/ora-01555-snapshot-too-old-reproduce-it-then-make-it-impossible-167f
One missing TCP_NODELAY flag tanked database throughput by 80%. A deep-dive into the investigation that caught it—essential reading for anyone tuning…
https://www.reddit.com/r/devops/comments/1wudn7m/how_a_missing_tcp_nodelay_flag_silently_ate_80_of/
Per-seat incident tool pricing doesn't reflect vendor costs—it reflects headcount, forcing teams to ration on-call rotations and creating shadow escalation channels. A…
https://dev.to/yathartha_shekhar/the-cost-structure-of-per-seat-incident-tooling-j4a
Pintu migrated 112 users to Grafana IRM in 4 months with zero major incidents while cutting costs 38%. Their playbook: production pilots, gradual rollout by risk tier, and keeping a fallback live.
Treating feature flag API rate limits as shared-capacity signals, not retry triggers. Learn how centralized polling and cost attribution per cohort…
"Designing for Failure: Building a Highly Available Web Architecture on AWS" by Abdul Aziz
#availability-zones #auto-scaling #load-balancing #reliability #aws-well-architected
Engineer replaces StatsD daemon with eBPF to eliminate port overhead and userspace costs. Clever kernel trick for observability that preserves reliability practices at scale.
https://www.reddit.com/r/devops/comments/1wulbjy/nobody_is_listening_on_port_8125/
Your health checks might be causing the cascading failures you're trying to prevent. Separate liveness from readiness, keep dependency…
Critical RCE discovered in Vault and OpenBao—OpenBao patched, but Vault remains exposed. If you're running Vault, this is urgent: four chained vulnerabilities…
https://www.reddit.com/r/devops/comments/1wtmrbu/critical_rce_alert_full_takeover_of_hashicorp/
When the last blackout left a city in the dark, grid planners turned to a new strategy: building imaginary wind farms. In a move that has left market participants scratching their heads, the Australian Energy…
#Australia #Power #Reliability #Forecasts #Now #Built #Business #Sydney #AusNews #Satire
A synthetic check can silently stop testing what you think it's testing. This team's five-week blind spot teaches hard lessons about HTTP redirects,…
A forgotten Postgres replication slot filled the database disk with 4 months of write-ahead log. How one team's post-mortem uncovered why…
Kubernetes maxUnavailable: 0 doesn't actually prevent request drops during rolling updates. This engineer's controlled experiment reveals why and what actually…
https://dev.to/remdore/a-kubernetes-rolling-update-with-maxunavailable-0-still-drops-requests-17jc
Deploy agents like code: version control, staging, canary, rollback. If you can't rollback, you're not ready to deploy. #SystemDesign #Reliability
Below the Reliability Floor: Recovering True Success from Judge-Gated Loops
Tautik Agrahari, Jeff Joji
Action editor: Peng Li
How recurring network maintenance exposed 6 bugs
tech_blogs_jane_street
The hardest part of agent orchestration isn't the prompts — it's the handoffs. Log inputs, decisions, outputs. Make every step inspectable. #SystemDesign #Reliability
If you can't replay your agent's decisions, you can't debug it. Store knowledge externally. Agents recall facts, not conversations. #SystemDesign #Reliability
The 80/20 rule applies to agents too: 20% of automations drive 80% of the value. Measure accuracy, usefulness, and user action rate. #SystemDesign #Reliability