The full error text is
php-fpm:[22-May-2013 03:00:08] WARNING: [pool default] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 8 children, there are 4 idle, and 13 total children
Does this mean that, during this request, php-fpm pool did not return any worker? My
pm.max_children is 15, so if 13 total do not count those that were tried to be spawned, no workers would be spawned at all as 13 + 8 > 15, right?