Cron reschedule event error for hook: wf_scan_monitor

Hi @dimalifragis, thanks for your message.

This came up over the weekend too, I suspect because this messaging has been added in WordPress 6.1.1.

If the job mentioned does not appear in your list of cron jobs any more, things should be fine so long as your scans are completing. This particular cron job mentioned just watches a running scan to ensure the scan finishes, and it does not need to be rescheduled when it ends. This looks like it could be caused by a race condition where two hits occurring at the same time are both trying to update cron jobs, which has been a long-standing issue in WordPress. It’s likely that one of the hits succeeded, and this error is the result of the second.

Thanks,

Peter.

Hi

We received the following error:

[15-Dec-2022 00:04:40 UTC] Cron unschedule event error for hook: wordfence_processAttackData, Error code: could_not_set, Error message: The cron event list could not be saved., Data: {“schedule”:false,”args”:[]}

WP 6.1.1 , PHP 7.4

Anything to worry?

Best,
Raido

We are seeing this error message as well. Want to reply so we can follow this thread:

Cron reschedule event error for hook: wf_scan_monitor, Error code: could_not_set, Error message: The cron event list could not be saved., Data: {“schedule”:”wf_scan_monitor_interval”,”args”:[],”interval”:60}

I’m getting a dozen (or so) of these every day. Following thread.

Cron reschedule event error for hook: wf_scan_monitor, Error code: could_not_set, Error message: The cron event list could not be saved., Data: {“schedule”:”wf_scan_monitor_interval”,”args”:[],”interval”:60}

WP Version: 6.1.1 PHP Version: 8.0.28

Yep I’m getting it too:

Cron reschedule event error for hook: wf_scan_monitor, Error code: could_not_set, Error message: The cron event list could not be saved., Data: {“schedule”:”wf_scan_monitor_interval”,”args”:[],”interval”:60}

Same issue here on multiple sites (hosted by Siteground):

Cron reschedule event error for hook: wf_scan_monitor, Error code: could_not_set, Error message: The cron event list could not be saved., Data: {“schedule”:”wf_scan_monitor_interval”,”args”:[],”interval”:60}

Same for me. Why is this marked as *resolved”? This is definitely NOT resolved, so please re-open.

Didier.

yep. not resolved for us either… wp 6.2.2 php 8
seeing this error daily still…

Cron reschedule event error for hook: wf_scan_monitor, Error code: could_not_set, Error message: The cron event list could not be saved., Data: {“schedule”:”wf_scan_monitor_interval”,”args”:[],”interval”:60}

I confirm on one of our sites as well :

PHP 8.0.28
WP 6.2.2

Cron reschedule event error for hook: wf_scan_monitor, Error code: could_not_set, Error message: The cron event list could not be saved., Data: {“schedule”:”wf_scan_monitor_interval”,”args”:[],”interval”:60}

Still an issue ??

PHP: 8.1

WP: 6.2.2

[29-Jul-2023 07:26:00 America/New_York] Cron reschedule event error for hook: wf_scan_monitor, Error code: invalid_schedule, Error message: Event schedule does not exist., Data: {“schedule”:”wf_scan_monitor_interval”,”args”:[],”interval”:60}

the same isiue here, wf_scan_monitor cron job got deleted from my list as well. (only one of my websites).

actully work much better without this cronjob, i suspect this cronjob overload the server.

but yes, i got the same error everybody say here too.

and the cronjob got deleted from my wp cron list.