Fixing PostgreSQL “Batch Query Latency Spike from 20ms to 1s” – Default Fillfactor Breaking HOT Updates under Heavy UPSERT
Environment: Google Cloud SQL (PostgreSQL), OLTP workload with ~1k UPSERTs/sec, 50M rows (scaling to 1B). 1.…
Environment: Google Cloud SQL (PostgreSQL), OLTP workload with ~1k UPSERTs/sec, 50M rows (scaling to 1B). 1.…
The Problem: MetalLB Webhook Validation Timeout We built a 3-node k3s cluster using k3sup, explicitly…
The Symptom: 100GB Gone, No Explanation Three months into running Open WebUI in production, our…
Abstract I spun up Triton Inference Server with the TensorRT-LLM backend, and the model repository…
Problem Statement We inherited an EKS cluster that was originally set up in 2020. About…
When a Kubernetes pod repeatedly crashes with OOMKilled and Exit Code: 137, the standard reaction—doubling…
1. Symptom and Environment Observed Error (container startup): dotnet PortfolioWebsite.dll Error: Cannot load library libgssapi_krb5.so.2: no…
Table of Contents Environment Baseline Failure Log 1: Manual .env Ignored by Git – Config Drift &…
We hit this while onboarding a fresh Linux Mint 22.3 “Zena” box into our Tailscale…
Environment & Setup That Triggered the Crash We were running ConvertX in a Docker container…
Docker Desktop (WSL2) on Windows 11 Software versions: Docker Desktop 4.19.0, WSL2 kernel 5.10.16.3, Windows 11 22H2 (OS…
Proxy Logs Show connect() failed (111: Connection refused) We started by hitting the public endpoint (GET…
Incident Context Component and version: Pinecone Python SDK v9.1.0 (pinned in requirements.txt; Hands-on testing v9.0.x–v9.1.x All…
Environment Context: APISIX 3.16.0 as an AI Gateway in Docker ParameterValueComponentApache APISIX (ai-proxy plugin)Version3.16.0-ubuntu (Docker…
Environment Context: Docker Desktop 24.0.6 on Windows 11 / WSL2 AttributeDetailsComponentDocker Engine (Buildx / Compose)VersionClient…
Environment Context: NGINX on Docker with Windows Host Paths Component/Version: NGINX (official image, built from…
Environment Context: multi-scrobbler on Docker 26.1.4 (Debian 12) AspectSpecificationComponentmulti-scrobbler container (FoxxMD/multi-scrobbler)Docker Engine26.1.4, build 5650f9bDocker Composev2.27.1Host…
Environment Context: Rootless Docker on Shared Clusters (AFS/Slurm) Component/Version: Docker 26.0.0–26.1.3 (rootless mode), dockerd-rootless-setuptool.sh Deployment Method:…
Docker Compose with MySQL and PHP-Based Admin Interfaces Components: Adminer (latest) / phpMyAdmin (latest), MySQL…
Debian 11 Host, Docker Bridge, and nftables Default-Drop Component/Version: Docker Engine 24.0.7 (community), OnlyOffice Document…
Environment Context: Dockerized Python Application on Custom Bridge Network AttributeValueComponentPython 3.9 application using requests libraryDeployment MethodDocker Compose…
Build Environment: Maven Multi‑Stage Docker Build with Selenium 4.11.0 Application Stack: Java 17, Maven 3.9.2,…
Incident Context This incident occurred on a production‑adjacent Proxmox LXC container that hosts a lightweight…
Migrating Internal Automation to a Fresh Docker Host We recently moved our internal monitoring stack…
Resolve the Docker 'bind: address already in use' error caused by a stale local-kv.db cache…
Incident Context Component and version: Spring Boot 3.x, React, Redis 7.0, MySQL 8.0, MongoDB 6.0…
Environment Context: PostgreSQL 18.1 on Docker Compose Component/Version: PostgreSQL 18.1 (Debian 18.1-1.pgdg13+2) Deployment Method: Docker…
Incident Context (Environment Information) Verified Production Environment (Single Source of Truth): ParameterValueOSUbuntu 24.04.2 LTS (x86_64)Kernel6.8.0-31-genericDocker…
Incident Context Affected Component: Docker networking stack (bridge and macvlan drivers) Host Environment: Multi-homed Linux host…
PostgreSQL 16 (Official Image) on Docker + Ubuntu 24.04 LTS Component/Version: PostgreSQL official Docker image…
Environment Context: Apple Silicon Hosts Running AMD64 Containers Component/Version: Docker Desktop 4.24+ / Docker Engine…
InfluxDB 2.1.1 OSS on Docker Compose with Node-RED Ingestion Component/Version: InfluxDB OSS v2.1.1 (image: influxdb:2.1.1-alpine) Orchestration:…
Environment Context: Docker 20.10+ on Ubuntu 22.04/24.04 Component/Version: Docker Engine 20.10.16–27.3.1, Docker Compose v2.5.0 Deployment…
Incident Context Component and version: Docker Engine 17.09.1–27.x, Docker Compose, Docker Toolbox (Windows) Deployment method:…