Scheduling tasks is the backbone of any efficient backend. Whether you are rotating logs, syncing databases, or sending out invoices, you rely on the server to execute these jobs at the exact right time.
But schedulers are not infallible. Servers restart, crontabs get overwritten, and daemons crash. When you automate a task, you often “set and forget” it. The problem is, if it stops running, you might not notice for weeks. We provide the assurance that your recurring jobs executed exactly when they were supposed to.
When “Set and Forget” Fails
We all want to believe that once a cron job is defined in the crontab, it will run forever. In reality, the environment changes. A server update might clear the cron daemon, or a code deployment might introduce a bug that hangs the script indefinitely.
In these cases, the job doesn’t necessarily “fail” with an error message—it just never starts. This is a silent failure. Cron job monitoring is the only reliable way to catch this. By expecting a signal from your job, we can tell you instantly when the silence becomes a problem.
Watching the Clock for You
Monitoring scheduled tasks isn’t just about catching errors; it is about verifying the schedule.
When you create a monitor in olic.io, you tell us the schedule using a standard cron expression. This tells our system exactly when to expect a “ping” from your script.
- If your job is set to run at 8:00 AM, we start listening.
- If 8:05 AM comes around and we haven’t heard from your script, we mark the job as “Missing.”
This logic ensures that time-sensitive tasks—like monthly billing or daily backups—are never skipped without you knowing.
Common Schedules We Protect
Different teams use scheduling for different critical functions.
- SaaS Teams often run heavy database maintenance jobs at 3:00 AM when traffic is low. If this schedule slips, it can affect performance during the day.
- Indie Hackers frequently schedule “cleanup” scripts to keep their server costs low.
Regardless of the complexity, the goal is the same: ensuring the routine maintenance of your business actually happens.
Instant Alerts on Missed Schedules
You cannot fix what you don’t know is broken. If a scheduled task is missed, you need to know immediately, not when a customer complains.
We deliver real time notifications the moment a schedule is breached. Whether you want a ping in Slack or an email to your inbox, we make sure the alert reaches you so you can restart the scheduler or debug the script immediately.
Frequently Asked Questions
Can I monitor tasks that run every minute? Yes. We support high-frequency monitoring. If your cron job runs every minute, we expect a ping every minute. If one is missed, we let you know.
What happens if my job takes longer than usual to finish? You can configure a “grace period.” If your job usually takes 5 minutes but sometimes takes 10, you can set a buffer so we don’t alert you prematurely.
Does this work with Windows Task Scheduler? Yes. Since we rely on an HTTP ping from the script itself, we don’t care if the scheduler is Cron, Windows Task Scheduler, or Systemd. As long as the script runs and sends the request, we can monitor it.