[wp-trac] [WordPress Trac] #64696: Real time collboration effectively disables persistent post caches while anyone edits a post

[WordPress Trac]

#64696: Real time collboration effectively disables persistent post caches while
anyone edits a post
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 Reporter:  peterwilsoncc             |       Owner:  (none)
     Type:  defect (bug)              |      Status:  new
 Priority:  normal                    |   Milestone:  7.0
Component:  Posts, Post Types         |     Version:  trunk
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:  performance
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Comment (by peterwilsoncc):

 @JoeFusco There's a race condition in the current awareness implementation
 that remains with the switch to transients: as the awareness stored in a
 single blob ([https://github.com/WordPress/wordpress-
 develop/blob/fbc42cd299f8ac7c0436db27ea2b200ab2561a04/src/wp-
 includes/collaboration/class-wp-http-polling-sync-server.php#L344-L366
 code ref]), near simultaneous requests can drop client IDs from the room.

 Chris and I were thinking that putting each client's ID in the new table
 as a separate row will allow us to avoid that condition. With four request
 per second when multiple collaborators are around, we have a lot of near
 simultaneous requests.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64696#comment:45>
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