Vesta Control Panel - Forum

root 10058 0.0 0.0 6444 716 pts/0 S+ 15:53 0:00 grep httpd

Ps aux detect httpd on process but is your own process your "grep httpd"

For check nginx you can do:
So you need find or enable php-fpm log

/var/log/php-fpm.log
/var/log/php-fpm/

i dont know how to enable php-fpm log.
log file php-fpm here /usr/local/vesta/php/var/log
[26-Feb-2016 18:23:11] NOTICE: fpm is running, pid 6289
[26-Feb-2016 18:23:11] NOTICE: ready to handle connections
[26-Feb-2016 19:09:28] NOTICE: Terminating ...
[26-Feb-2016 19:09:28] NOTICE: exiting, bye-bye!

but i can not start php-fpm and named in vesta panel. what can i do now?

reinstall centos 7 and upgrade php 7 is okay now!