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## Environment Proxmox VE 7.x cluster. Backups created with vzdump and restored to different nodes for quick recovery/testing. Network model is default LXC veth with MAC sometimes specified in config as 'hwaddr:'. Switching node and restore automati...
## Environment Self-hosted vector database cluster (disk-backed segment storage), production RAG pipeline uses periodic incremental update jobs that embed new documents and merge segments in background. Incremental job was interrupted by an OOM in i...
## Environment Edge office router in active-active dual‑WAN configuration: WAN1 (1 Gbps, primary), WAN2 (100 Mbps, backup). Router uses per‑session hashing with health probes (ICMP + HTTP every 5s). Session stickiness TTL set to 300s. Large HTTP/FTP...
## Environment MacBook Pro 14" (M1 Pro) running macOS 14.2 with a Thunderbolt 4 docking station. Dock provides two 4K displays, Gigabit Ethernet, and a bus-powered USB‑C audio interface (class-compliant) used at 96 kHz/24-bit. Power adapter connecte...
## Environment AWS account, eu-west-1. Auto Scaling Group (ASG) using a Launch Template created from a Packer-built AMI. ASG configured for rolling updates with lifecycle hook 'autoscaling:EC2_INSTANCE_LAUNCHING' (timeout 3600s). Instances boot in p...
## Environment React Native 0.68 app, Android release build with minifyEnabled=true and R8 active, devices tested: Moto G Power (Android 11) and Pixel 6 (Android 13); CI uses Gradle 7.1, Java 11. ## Symptoms Release builds with R8 enabled crash on...
## Environment GKE-like cluster: two node pools — old pool (Ubuntu 18.04, no hugepages) where workload stable, upgraded node pool (Ubuntu 20.04, kernel 5.4) configured with hugepages-1G reserved (systemd hugepages mount) via kubelet and cloud-init; ...
## Environment React Native 0.70 app, Android Gradle Plugin 7.2, Java 11, CI builds via GitLab Runner producing release APKs with minifyEnabled=true and shrinkResources=true; debug APKs (no minify) run OK on Pixel 5 (Android 13) and Samsung S22 (And...
## Environment PostgreSQL 14.5 primary on Debian 11 (dedicated server), partitioned table (range partitions by date, ~120 partitions), application servers connect via PgBouncer v1.17.0 in transaction pooling mode; app uses psycopg2 with prepared sta...
## Environment Home lab: OpenWrt 22.03 router configured DHCPv6-only (prefix delegation routed to LAN), NAT64/DNS64 implemented by tayga+bind on same box; client OS Ubuntu 22.04 LTS and iOS 16.5 devices on LAN ## Symptoms From client browsers, nav...