Maintenance Mode Configuration
You must put your ownCloud server into maintenance mode before
performing upgrades, and for performing troubleshooting and maintenance.
Please see Using the occ Command to learn how to put your server into the various maintenance modes (
maintenance:mode, maintenance:singleuser, and
maintenance:repair) with the
maintenance:mode locks the sessions of logged-in users and prevents
new logins. This is the mode to use for upgrades. You must run
the HTTP user, like this example on Ubuntu Linux:
sudo -u www-data php occ maintenance:mode --on
You may also put your server into this mode by editing config/config.php.
"maintenance" ⇒ false to
"maintenance" ⇒ true:
'maintenance' => true,
Then change it back to
false when you are finished.