Why httpd graceful restart takes such a long time?
Note that if you have an invalid hostname in your
etc/hosts file -- for example, if you did not modify the default installation settings -- then you may wait up to 90 seconds for various tasks to be performed, including starting/restarting httpd.
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
111.222.333.444 www.mysite.com mysite.com
/etc/hosts entry for single IP server serving multiple domains
A graceful restart waits for all current connections to close before restarting, whereas a standard restart just aborts current connections.