Knowing when they stop.
THE PROBLEM
Cron failures are silent. Nothing announces that a job stopped running.
WHAT TO MONITOR
That the job's expected effect actually occurs.
Not that the job ran, which tells you less.
PRACTICAL METHODS
A backup plugin reporting its last run A log file with a recent timestamp A record in the database with a recent date A monitoring service expecting a regular signal
THAT LAST ONE
Some services alert when an expected check-in does not arrive.
Useful for anything important.
FOR WORDPRESS
A cron viewer plugin lists scheduled events and overdue ones.
Check it periodically.
FOR WOOCOMMERCE
The scheduled actions screen. A growing pending queue is the warning.
WHAT TO CHECK MONTHLY
That backups have recent dates That scheduled tasks are not accumulating That nothing is overdue
WHY THIS MATTERS
A backup job that stopped three months ago is discovered when you need a backup.