## sometimes when your server was DDOS-ed, it will end up with MILLIONS of session files
## this is how to find it out, and clear it out

###### fastest way to count millions of files in a folder

ls -U /var/lib/php/sessions|wc -l


###### fastest way to delete millions of files in a folder

find /var/lib/php/sessions/  -type f -mmin +60 -delete