[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:  has-patch needs-unit-tests  |     Focuses:
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Comment (by galbaras):

 Replying to [comment:62 domainsupport]:
 > Replying to [comment:61 j3gaming]:
 > >
 > > I don't the frequency you set the cron to run is the issue. I'm
 thinking that your 15min cron, for some reason runs twice. Are you also
 using Linux? Did we all just stumble across an OS bug and we're all in the
 wrong spot to fix it?
 >
 > The main server that we ''were'' seeing this issue on (we don't see it
 anymore since we allocated more resources to MySQL) is running Ubuntu
 20.04 and we use an hourly system fired cron. We don't get duplicate cron
 events and never have done that we know of.

 I'm on CloudLinux and I'm pretty sure the jobs only run once, because I
 use them to preload my cache, which would overload my accound if run
 twice.

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Ticket URL: <https://core.trac.wordpress.org/ticket/57271#comment:63>
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