[wp-trac] [WordPress Trac] #57271: Cron unschedule / reschedule event errors

[WordPress Trac]

#57271: Cron unschedule / reschedule event errors
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 Reporter:  domainsupport                 |       Owner:  audrasjb
     Type:  defect (bug)                  |      Status:  assigned
 Priority:  normal                        |   Milestone:  Awaiting Review
Component:  Cron API                      |     Version:  6.0
 Severity:  normal                        |  Resolution:
 Keywords:  needs-unit-tests needs-patch  |     Focuses:
------------------------------------------+------------------------------

Comment (by emilycestmoi):

 I cannot reproduce "WP cron firing twice in the same microsecond". Can we
 get some instructions on how to log this behaviour?

 For example, I just modified my wp-cron.php and inserted a line to log the
 transient:

 {{{
 // XXX-EN
 error_log('got transient: ' . $doing_cron_transient . "\n", 0);

 /*
  * The cron lock (a unix timestamp set when the cron was spawned),
  * must match $doing_wp_cron (the "key").
  */
 if ( $doing_cron_transient !== $doing_wp_cron ) {
         return;
 }

 }}}

 After running this overnight on one of my sites this is my cron log
 output:

 {{{
 got transient: 1714659602.8254570960998535156250

 got transient: 1714659722.2510559558868408203125

 got transient: 1714659842.5517539978027343750000

 Cron reschedule event error for hook: newsletter_bounce_run, Error code:
 could_not_set, Error message: The cron event list could not be saved.,
 Data: {"schedule":"newsletter","args":[],"interval":300}
 got transient: 1714659962.9193520545959472656250

 got transient: 1714660082.4408359527587890625000

 Cron reschedule event error for hook:
 cartflows_ca_update_order_status_action, Error code: could_not_set, Error
 message: The cron event list could not be saved., Data:
 {"schedule":"every_fifteen_minutes","args":[],"interval":1200}
 got transient: 1714660203.2717330455780029296875

 got transient: 1714660322.7761120796203613281250

 got transient: 1714660442.4618968963623046875000
 }}}

 What am I missing?

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Ticket URL: <https://core.trac.wordpress.org/ticket/57271#comment:76>
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