[wp-trac] [WordPress Trac] #24557: Network delete user screen doesn't scale to large numbers of users

[WordPress Trac]

#24557: Network delete user screen doesn't scale to large numbers of users
---------------------------+------------------------------------
 Reporter:  cklosows       |      Owner:
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Network Admin  |    Version:  3.0
 Severity:  normal         |   Keywords:  has-patch dev-feedback
---------------------------+------------------------------------
 Running into an issue on a MultiSite, where all users are Subscribers on
 the Root blog, and it's reached ~350,000 users. When trying to delete a
 user, the screen just ends up at this:

 [[Image(https://dl.dropboxusercontent.com/u/8019372/no-options-for-
 delete.png)]]

 Missing the options to choose a new user and the delete button.

 The issue is being caused by the get_users() call that is used to populate
 the dropdown that allows you to assign this users' post to another current
 user.

 It may be useful to include a filter on the array parameters for this
 get_users call to allow people to reduce the number of users returned. In
 this case for us, we only ever assign the new posts to a role of 'Author'
 so we can pass that along as the 'role' argument with the get_users()
 call.

 Web Server Errors show the following:

 {{{
 Jun 10 14:54:55 server-name lighttpd[12944]: (mod_fastcgi.c.2543)
 unexpected end-of-file (perhaps the fastcgi process died): pid: 12924
 socket: unix:/var/run/lighttpd/php-fastcgi.socket-15
 Jun 10 14:54:55 server-name lighttpd[12944]: (mod_fastcgi.c.3344) response
 already sent out, but backend returned error on socket:
 unix:/var/run/lighttpd/php-fastcgi.socket-15 for /wp-
 admin/network/users.php?_wpnonce=07f54ab98b&action=deleteuser&id=2340&_wp_http_referer
 =%2Fwp-
 admin%2Fnetwork%2Fusers.php%3Forderby%3Did%26order%3DDESC%26s%3Dname%2540example.com%26pc_split_value%3D4&pc_split_value=4,
 terminating connection
 }}}

 The page does fail gracefully and return a 200 response, just doesn't give
 the ability to complete the deletion.

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Ticket URL: <http://core.trac.wordpress.org/ticket/24557>
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