[wp-trac] [WordPress Trac] #56628: Cron memory limit is unnecessarily low

[WordPress Trac]

#56628: Cron memory limit is unnecessarily low
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 Reporter:  iandunn      |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  Cron API     |    Version:  2.1
 Severity:  normal       |   Keywords:
  Focuses:               |
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 ==== Problem

 `wp-cron.php` uses the default `WP_MEMORY_LIMIT`, which is sometimes low
 enough that a cron job triggers an out-of-memory error.

 In many of those cases, the amount of memory needed is greater than
 `WP_MEMORY_LIMIT`, but less than `WP_MAX_MEMORY_LIMIT`, and all a dev has
 to do is call `wp_raise_memory_limit( 'admin' )` in their cron callback.

 That still requires time debugging and fixing, though, and Core could
 prevent those types of errors from happening in the first place.


 ==== Proposed Solution

 Since crons often consume extra memory by nature, I think it makes sense
 to give them the full amount available by default. We already do this with
 the admin area and image processing.

 That could be done by adding a new `cron` context to
 `wp_raise_memory_limit()`, and calling `wp_raise_memory_limit( 'cron' )`
 in `wp-cron.php`

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Ticket URL: <https://core.trac.wordpress.org/ticket/56628>
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