Node.js Monitoring for 3 Cron Job Silent Failure Signals
A cohort experiment cannot be rolled back safely if its scheduled evaluator can disappear without evidence. App logs alone are insufficient because…
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A Guide to Choose Healthchecks and App Metrics for Missed Cron Jobs
A scheduled task has one operational constraint that changes the tooling choice: when it never starts, it cannot emit its own failure metric. TL;DR:…
Nightly Data Cleanup With Cron, HTTP Endpoints, and Queue Workers
When a customer-support system retries outbound webhooks, the cleanup job is easy to underestimate. A nightly delete of old delivery records may fit…
Парсер расписаний после хабратестирования: полвторого, RRULE, systemd и производственный календарь
В прошлой статье я показал cronsense, библиотеку, которая переводит расписание на русском или английском в cron: «по будням в 9:30» → 30 9 * * 1-5 .…
«По будням в 9:30» → 30 9 * * 1–5: парсер расписаний на русском, который отказывается угадывать
Библиотека называется cronsense. Она переводит расписание, записанное обычными словами на русском или английском, в cron‑выражение и…
My Monitoring Cron Never Ran Once. crontab -l Showed It Fine.
I write monitoring so I don't have to watch things by hand. So there is a special kind of dread in discovering that the monitor you installed to wat…
Migrating from crontab: five everyday schedules, translated into Kairos
If you arrived from the Kairos 1.0 announcement , this is the hands-on one: take a crontab you already have and translate it. First, the honest part…
Node.js Scheduled Enqueue Example: A Queue Alternative for Background Reports
Put the schedule and the work in separate processes: let a cron trigger enqueue a small, idempotent job record, then let queue workers claim that re…
A Dead-Man's Switch That Pages Once and Goes Quiet Is Worse Than None. Ours Went Silent for 43 Days.
Most monitoring watches for something bad to appear: a 500, a timeout, an expired certificate, a slow response. A heartbeat monitor does the opposit…
"Cron 'every 2 weeks' doesn't exist. Here's the expression that actually works."
You just Googled "cron every 2 weeks" because your clean-up job keeps running weekly, and the cron docs are silent on the whole idea. That's not you…
Runbook for API Failures and Silent Cron Jobs in a Backend Metrics Dashboard
Use metrics APIs for cron-job, API-failure, and business-event charts, then add a separate heartbeat monitor for jobs that never start. That is the…
Your cron job fires on the wrong day
A team ports a job from a Quartz scheduler to a Unix crontab. The Quartz trigger ran Monday through Friday — day-of-week field 2-6 , because Quartz…
Ночной джоб, который сам нарезает партиции: cron, SQL-функция и сплиттер
Есть таблица GPS-точек. Транспорт шлёт координаты каждые несколько секунд, за сутки набегают миллионы строк, и таблица секционирована по времени. Зн…
Cron jobs and schedulers with BullMQ
In-process cron ( node-cron , @nestjs/schedule , OS crontab) runs inside one Node process. That is fine for a single instance, but it does not survi…
The Symfony Scheduler Component: Cron in Your App, Not Your Crontab
Book: Decoupled PHP — Clean and Hexagonal Architecture for Applications That Outlive the Framework Also by me: Thinking in Go (2-book series) — Comp…
Почему cron — самый опасный инструмент в Linux
Демон cron знаком каждому, кто админит Linux. Он крутит бэкапы, чистит временные файлы и запускает скрипты, о которых все уже давно забыли. Однако м…
Cron Job Monitoring Tools Compared: From DIY to Fully Managed
Cron's biggest problem isn't scheduling — it's silence. A cron job can fail every night for a month, and unless you're manually checking logs on the…
[Перевод] Вы сильно недооцениваете таймеры systemd
Как же я люблю метонимичный технологический термин «задача cron ». Несмотря на то, что реальным демоном, выполняющим задачи по расписанию, может явл…
Heartbeat-мониторинг cron-job'ов: dead-man-switch на FastAPI
Обычный uptime-мониторинг проверяет, отвечает ли сервис на запросы. Cron-job ничего не отвечает — он запускается раз в N часов, делает работу и молч…
GitLab Scheduled Pipeline Monitoring: How to Catch Missed CI/CD Runs Before They Break Production
GitLab scheduled pipeline monitoring matters because scheduled CI/CD jobs can fail quietly while the rest of your system looks healthy. Your applica…