From php.ini…
max_execution_time = 300
max_input_time = 300
max_input_vars = 200000
memory_limit = 256M
I even just raised memory to 999M, and it’s still not working.
The total number of users that can be deleted in a single go depends on the resources in your server.
Since you are getting 500 server error, can you check your PHP error log and let me know what is the exact error that you are getting?
I think it’s this…
[11-Mar-2016 17:30:28 UTC] PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 72 bytes) in /home/myaccount/public_html/wp-includes/wp-db.php on line 2350
Actually, another method I just tried seemed to partially work. Even though that other method (http://wordpress.stackexchange.com/questions/220426/bulk-delete-users-by-role-sql) also crashed 500, it seemed to leave 1,581. Your plugin was able to delete those okay.
Yeah it looks like you are running out of memory.
Glad to know that you got it figured.
