За рамками APM: что подключают к мониторингу в первую очередь
Когда мы говорим об APM мониторинге сразу вспоминаются трассировки запросов, мониторинг CPU и памяти, Real User Monitoring. И это логично: именно AP…
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Structured Logging in Next.js with Pino (Request IDs to stdout)
A request failed in production at 02:14 and the only thing you have is console.log("error", err) somewhere in a route handler. You cannot tell which…
MCP-инструменты научились возвращать интерфейс: разбираем OpenSearch MCP Apps
Обычный MCP-инструмент возвращает агенту текст или структурированные данные. Агент анализирует результат и пишет тебе что-то вроде: Глубже
Free Tokens Are Not an SLO: An Ops Cost Drill for AI Batch Queues
Free Tokens Are Not an SLO: An Ops Cost Drill for AI Batch Queues This week, two numbers trended: a harness at 100%, a model at 30%. For platform te…
Structured API Logging in 2026: Correlating Response Status and Delivery Latency
Short answer: record one structured completion event at the request boundary, emit separate events for every asynchronous notification attempt, and…
Real-Time Monitoring for AI Agents: Beyond Log Streaming
Most agent monitoring is "log everything and grep later." That's not monitoring — that's archaeology. What We Actually Need Live execution view — Wh…
Vercel CLI overhaul: DNS, domains, project management
This week's tooling news is largely a Vercel story—CLI expansions, observability upgrades, sandbox regionalization, and a free tier reshuffle landed…
Your outage monitor under-counts outages and over-states their length, at the same time
I have a poller that watches a wifi link. Every 60 seconds it asks "are we associated?" — if not, it opens an episode, climbs a remediation ladder,…
Frontend Backend Correlated Logging: Browser Fetch Request IDs and Server Logs
Short answer: give each browser fetch a request ID, carry it to the backend in a standard HTTP header, and emit that same ID in structured logs on b…
A silent failure looks exactly like a feature you never built
Your system has memory. Your user is typing into someone else's chat box. That gap is the whole problem, and it is not a retrieval problem. The plac…
LLMOps for Compound AI Systems — Observability & Cost
Why most GenAI pilots crumble after launch Most GenAI pilots don't fail because the models are bad — they fail because the surrounding system wasn't…
The report was there every day. Nobody read it.
We built a small pipeline that publishes a post once a day, if there's something ready to publish. Every morning it checks a folder. If the folder h…
Cheapest Hosted App Log Search for Small Businesses: A Practical Comparison
Short answer: compare a hosted app log search service, self-hosted Loki, and Elastic Cloud by the operational boundary each one creates. Low effort,…
Node.js Express Observability: A Beginner's Health Endpoint-to-Uptime Signal Contract
Short answer: for a flagged fintech pricing change, use an external uptime monitor to test whether the public path is reachable, then use an interna…
App Health Endpoint Design: 3 Probes That Keep Logging and Metrics Useful
Short answer: for a Node.js app in Docker or Kubernetes, give startup, readiness, and liveness probes separate meanings, keep routine health traffic…
FastAPI and Node.js Property Incidents: 7-Field Error Schema for Request Correlation
Short answer: send normalized failures from every FastAPI and Node.js service to one capture endpoint, carry the same trace ID through the request p…
С нуля до Junior DevOps в 2026 году. 8.1. Prometheus. Мониторинг
Разбираемся с мониторингом и observability, metrics, logs и traces, time series, labels, scrape, TSDB, PromQL и alerting rules. Разберём, как Promet…
The enum value that had never been written
I found 27 workflow branches that were being skipped while every run still finished as COMPLETED . The condition on those branches could never match…
Node.js Product Analytics-Style API: 3 Metrics Dashboard Rollback Drills
A product analytics style metrics dashboard page says a nightly media pipeline produced 18,420 searchable articles when 18,487 were eligible. The No…
Never key anything on a redaction placeholder
A log scrubber sits between every writer and the shared log on my machine. Last week it did its job perfectly and, in doing so, silently marked two…
Сеть kubernetes без магии: трассировка пакета на kind + Cilium
Все, кто работал с k8s, знают: что такое CNI, разбираются как его подключить и даже поверхностно могут понимать какой из предлагаемых…
The Observability Crisis: Why OTel Alone Fails for AI and How to Build a Resilient Pipeline
Originally published on tamiz.pro . Observability in software engineering has long been the domain of metrics, traces, and logs. OpenTelemetry (OTel…
4 Non-obvious learnings from working with alerts
Alerting is a details game. Nobody gets paged by their intent — they get paged by the exact query they wrote. If you want to sleep through the night…
Can We Automate the Work of a Software Engineer? The Story Behind HEALER
In my previous article, I wrote about X-Ray — an observability system that grew out of my work on PAD+ AI. Read the X-Ray article on Habr Before X-R…
A Reason Code Without a Source Is Half a Diagnostic
A failure message can be technically correct and still be frustratingly incomplete. Consider a timeout. It tells us something important about the fa…
Node.js Gateway API Observability — 6 One-Key Signals for OpenAI, Claude, Gemini Fallbacks
Short answer: for a Node.js service that turns logistics sales calls into CRM actions, use a unified gateway when one key and simple fallback matter…
Как мы внедрили AIOps для контроля GPU‑утилизации и повысили её на 60%
Привет, Хабр! На связи Даниил Понизов и Роман Лазовский , руководитель и MLOps-инженер команды ML-платформы в RWB. Мы занимаемся разработкой платфор…
The $11k cloud bill was mostly the tools you added to watch the cloud bill
A startup with only six engineers calculated the cost of their monthly cloud bill to be $11,847. The majority of the data generated was not from the…
Как я перестал гадать, какая пара нод сломалась после апдейта CNI, и написал для этого свой мониторинг
98% успешных проверок в дашборде выглядят прекрасно. Ровно до момента, когда доходит: недостающие 2% это одна пара нод, один протокол, и т…
The alarm wasn't silent. It was lying.
This is a submission for DEV's Summer Bug Smash: Clear the Lineup powered by Sentry . Project Overview agentic-os is a small self-hosted observabili…