[wp-trac] [WordPress Trac] #11800: doubled execution of cron jobs

[WordPress Trac]

#11800: doubled execution of cron jobs
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 Reporter:  neoxx         |       Owner:  westi
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Future Release
Component:  Cron          |     Version:  2.9.1
 Severity:  normal        |  Resolution:
 Keywords:  cron          |
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Changes (by mintindeed):

 * cc: gabriel.koen@… (added)


Comment:

 The patch I created for #15148 creates a cron table with one row per job.
 The primary key field is a token using a hash of the timestamp, hook, and
 arguments.  The schedule cron function will blindly try and insert any job
 you tell it, but since the primary key is a hash of those params,
 duplicate entries will simply fail to be inserted into the database
 (without a separate query to check if they already exist).

 There's also a status field, so theoretically wp-cron.php could be
 modified to spawn off multiple processes (1 for each job) which would then
 update the status of the job they're working on (pending, processing,
 completed).  Basically laying the groundwork for a real job queue, if
 that's the direction you want to take it.

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Ticket URL: <http://core.trac.wordpress.org/ticket/11800#comment:5>
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