Cron Job Monitoring: Catch Silent Failures
Cron job monitoring is the part of observability most teams skip until a backup turns out to have stopped running three weeks ago. A web server that falls over generates errors, trips a threshold and pages someone inside a minute. A nightly job that quietly stops running generates nothing at all. There is no error rate to alert on, no latency spike, no failed health check. There is only an absence, and absence is invisible to almost every monitoring setup by default.