[wp-trac] [WordPress Trac] #17888: Problems with build in Cronjob Schedule - is this a bug?

[WordPress Trac]

#17888: Problems with build in Cronjob Schedule - is this a bug?
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 Reporter:  1manfactory   |       Owner:
     Type:  defect (bug)  |      Status:  reopened
 Priority:  normal        |   Milestone:
Component:  Cron          |     Version:  3.1.3
 Severity:  normal        |  Resolution:
 Keywords:                |
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Comment (by dd32):

 A few notes:
  * The cronjob may not be called at the exact point in time specified. The
 cron system relies upon a user visiting the site to kick the cron off, for
 example, if there are no visitors between 1pm and 9pm, and a job was
 scheduled at 6pm, it'll run at 9pm.
  * The Cron system "often" runs into issues related to running twice due
 to the locking not "working" 100% of the time.
  * See the
 [http://core.trac.wordpress.org/query?status=%21closed&component=Cron open
 Tickets related to Cron] - I believe all the issues you've outlined above
 are mentioned in some of those tickets.

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Ticket URL: <http://core.trac.wordpress.org/ticket/17888#comment:4>
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