My website has this cron job set to run every 30 mins and the cron.php/sh is set to run every 15 mins on the server. But I always get "missed" for this cron job. My cron configuration time setting is:
15 45 60 60 3000 3000
Also, I have noticed that every now and again we got the message (from aoe scheduler) saying "last heartbeat is older than *** (more than 15) mins" even more than an hour sometimes. Does this mean the cron.php/sh is not running properly? Hence the cron job is "missed"?
Please kindly advise!! Many Thanks!