PHP Upgrade breaks connection to database

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Nextcloud version (eg, 12.0.2):15.07
Operating system and version (eg, Ubuntu 17.04):FreeBSD (IOCAGE Jail on FreeNAS)
Apache or nginx version (eg, Apache 2.4.25): 2.4.39
PHP version (eg, 7.1):7.1.28 to 7.3

The issue you are facing: I successfully upgraded the PHP version to 7.3 as evidenced by the PHP Info, but NC is not responding. Examination of the httpd-error.log reveals an error connecting to the database.

Is this the first time you’ve seen this error? (Y/N):Y

Steps to replicate it:

  1. Install PHP 7.3

The output of your Nextcloud log in Admin > Logging:

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

Screen Shot 2019-04-16 at 5.20.47 AM.png

The output of your Apache/nginx/system log in /var/log/____:

[Tue Apr 16 05:19:03.025318 2019] [php7:error] [pid 8804] [client 66.199.23.246:15735] PHP Fatal error: Uncaught Doctrine\\DBAL\\DBALException: Failed to connect to the database: An exception occured in driver: could not find driver in /usr/local/www/apache24/data/nextcloud/lib/private/DB/Connection.php:64\nStack trace:\n#0 /usr/local/www/apache24/data/nextcloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(429): OC\\DB\\Connection->connect()\n#1 /usr/local/www/apache24/data/nextcloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(389): Doctrine\\DBAL\\Connection->getDatabasePlatformVersion()\n#2 /usr/local/www/apache24/data/nextcloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(328): Doctrine\\DBAL\\Connection->detectDatabasePlatform()\n#3 /usr/local/www/apache24/data/nextcloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(623): Doctrine\\DBAL\\Connection->getDatabasePlatform()\n#4 /usr/local/www/apache24/data/nextcloud/lib/private/DB/Connection.php(151): Doctrine\\DBAL\\Connection->setTransactionIsolation(2)\n#5 /usr/local/www/apache24/data/nextcloud/3rdparty/doctrine/dbal/lib/Doctrine/DB in /usr/local/www/apache24/data/nextcloud/lib/private/DB/Connection.php on line 64
2

Hi,

With the updates of PHP the modules are removed.
As a result you need to enable/ re-install mandatory modules again.
Please check the installation guide for that.

3

Even simpler is to use the search function of the forum because your question has already been asked and answered several times, like e.g. here:

4

Actually J-ed I did search, and this is a completely different issue. My php-info reveals that Apache IS using the new version of php. My issue is how to restore connectivity to MariaDB for NC.

I also had installed all of the php73 modules that were installed under php70, with the exception of mcrypt, as it no longer exists. Again, my issue is re-establishing the connection to the NC database.

5

Can you run:
php -m

and post the output here?
Are there any messages in the system logs about the connection failures to the DB?

6

This is a production system, so when I couldn’t get it working, I had to roll back to php70. When php73 was installed, this was the error (in the original post) given in the httpd-error.log:

[Tue Apr 16 05:19:03.025318 2019] [php7:error] [pid 8804] [client 66.199.23.246:15735] PHP Fatal error: Uncaught Doctrine\\DBAL\\DBALException: Failed to connect to the database: An exception occured in driver: could not find driver in /usr/local/www/apache24/data/nextcloud/lib/private/DB/Connection.php:64\nStack trace:\n#0 /usr/local/www/apache24/data/nextcloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(429): OC\\DB\\Connection->connect()\n#1 /usr/local/www/apache24/data/nextcloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(389): Doctrine\\DBAL\\Connection->getDatabasePlatformVersion()\n#2 /usr/local/www/apache24/data/nextcloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(328): Doctrine\\DBAL\\Connection->detectDatabasePlatform()\n#3 /usr/local/www/apache24/data/nextcloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(623): Doctrine\\DBAL\\Connection->getDatabasePlatform()\n#4 /usr/local/www/apache24/data/nextcloud/lib/private/DB/Connection.php(151): Doctrine\\DBAL\\Connection->setTransactionIsolation(2)\n#5 /usr/local/www/apache24/data/nextcloud/3rdparty/doctrine/dbal/lib/Doctrine/DB in /usr/local/www/apache24/data/nextcloud/lib/private/DB/Connection.php on line 64

While I had php73 installed, the php info as served up by apache24 is attached.

47%20AM
47%20AM958×888 148 KB

7

I find this very hard to read on the screenshot and I can’t search for strings unfortunately.
I use MariaDB as well and upgraded to PHP73 a few weeks ago. Here is a list of all the modules I installed and use right now. Maybe this helps you to compare with your setup:

apcu
bz2
Core
ctype
curl
date
dom
exif
fileinfo
filter
ftp
gd
gmp
hash
iconv
igbinary
intl
json
libsmbclient
libxml
mbstring
mysqlnd
openssl
pcntl
pcre
PDO
pdo_mysql
pdo_sqlite
Phar
posix
readline
redis
Reflection
session
SimpleXML
smbclient
sockets
SPL
sqlite3
standard
tokenizer
xml
xmlreader
xmlwriter
Zend OPcache
zip
zlib

I believe this was/ is a quite minimal setup and most of these modules are required for Nextcloud to run properly without warnings in the Overview.

And by the way: this part of the error message makes me believe a PHP module for DBs is missing:

Failed to connect to the database: An exception occured in driver: could not find driver

8

I think the message clearly states that the driver couldn’t be found. Afaik the required module is named “php7.3-mysql”. Make sure it is installed and correctly configured.

1 Like
9

You guys were absolutely correct on the missing module. In my case, on Freebsd, the module I had missed was named “mod_php73.” Once I corrected that, PHP 7.3.4 is running within Apache, and Nextcloud is running correctly as well.

The reason I started an upgrade to PHP7.3 in the first place was a belief that PHP7.0 was creating a problem with my ability to run pkg upgrade. The issue that I had was that a pkg upgrade was trying to remove Mariadb, which is needed for NextCloud. After upgrading to php7.3, the pkg upgrade to libreoffice 6.2.2_3 is trying to install mysql56-client: 5.6.43 which is incompatible with Mariadb because it installs in the same file location as the mariadb client.

Therefore, the original issue that I was trying to resolve is still present. For the time being, I have locked mariadb within pkg, but I would prefer to maintain the software through the pkg management and need to find a fix for this long term.