Doctrine\DBAL\Exception: Failed to connect to the database

ℹ️ Support 📦 Appliances (Docker, Snappy, VM, NCP, AIO)
,
1

At the automatic update process on my NextCloudPi I get the following errors and now my Nexcloud is in maintanance mode and I can’t connect or exit this mode.

[ nc-update-nc-apps-auto ]
checking for updates…
An unhandled exception has been thrown:
Doctrine\DBAL\Exception: Failed to connect to the database: An exception occurred in the driver: could not find driver in /var/www/nextcloud/lib/private/DB/Connection.php:140
Stack trace:
#0 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php(1531): OC\DB\Connection->connect()
#1 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php(1029): Doctrine\DBAL\Connection->getWrappedConnection()
#2 /var/www/nextcloud/lib/private/DB/Connection.php(262): Doctrine\DBAL\Connection->executeQuery()
#3 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Query/QueryBuilder.php(345): OC\DB\Connection->executeQuery()
#4 /var/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php(280): Doctrine\DBAL\Query\QueryBuilder->execute()
#5 /var/www/nextcloud/lib/private/AppConfig.php(418): OC\DB\QueryBuilder\QueryBuilder->execute()
#6 /var/www/nextcloud/lib/private/AppConfig.php(184): OC\AppConfig->loadConfigValues()
#7 /var/www/nextcloud/lib/private/AppConfig.php(374): OC\AppConfig->getApps()
#8 /var/www/nextcloud/lib/private/legacy/OC_App.php(803): OC\AppConfig->getValues()
#9 /var/www/nextcloud/lib/private/Server.php(733): OC_App::getAppVersions()
#10 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\Server->OC{closure}()
#11 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility{closure}()
#12 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#13 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#14 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#15 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(193): OC\AppFramework\Utility\SimpleContainer->get()
#16 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility{closure}()
#17 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(118): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility{closure}()
#18 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#19 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#20 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#21 /var/www/nextcloud/lib/private/Server.php(1115): OC\AppFramework\Utility\SimpleContainer->get()
#22 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\Server->OC{closure}()
#23 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility{closure}()
#24 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#25 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#26 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#27 /var/www/nextcloud/lib/private/Server.php(2067): OC\AppFramework\Utility\SimpleContainer->get()
#28 /var/www/nextcloud/lib/private/Files/View.php(106): OC\Server->getLockingProvider()
#29 /var/www/nextcloud/lib/private/Server.php(467): OC\Files\View->__construct()
#30 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\Server->OC{closure}()
#31 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility{closure}()
#32 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#33 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#34 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#35 /var/www/nextcloud/lib/private/Server.php(1469): OC\AppFramework\Utility\SimpleContainer->get()
#36 /var/www/nextcloud/lib/base.php(638): OC\Server->boot()
#37 /var/www/nextcloud/lib/base.php(1180): OC::init()
#38 /var/www/nextcloud/console.php(48): require_once(‘…’)
#39 /var/www/nextcloud/occ(11): require_once(‘…’)
#40 {main}
[ncp-update-nc]
Nextcloud is currently down

Current installed version: v1.52.4, update to v1.53.0
Nextcloud version: 27.1.3

2

Welcome to the club. I am facing the same issue here. Yesterday I opened this thread:

Could you solve your issue in the meanwhile?

3

@agria What version of PHP ?

4

Initially 8.1 now upgraded to 8.2 in order to test some effect. Still internal server error.

5

In my case: config/config.php contained 'dbhost' => 'localhost', … the web ui worked well bon on CLI I got your error too (could not find driver in /var/www/nextcloud/lib/private/DB/Connection.php:140).

In the help pages of my provider was a notice for accessing the database on console must be done with 127.0.0.1: mysql -h 127.0.0.1 -u <DBUSER> -p <DBNAME>
If this is your case, then in the config/config.php replace localhost with 127.0.0.1.