I have a site create with flags --wpredis --hhvm --pagespeed
$>ee site info
Nginx configuration wp wpredis (enabled)
Pagespeed enabled
HHVM enabled
access_log /var/www/site/logs/access.log
error_log /var/www/site/logs/error.log
Webroot /var/www/site
the command
ee clean --all
return
Restart : memcached [OK]
Cleaning MemCache
Cleaning NGINX FastCGI cache
Cleaning opcache
Unable to clean opcache <<<<<<<<<<<<<<<<<