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php – Symfony 2.7 cache:clear command checks every database connection

Posted by: admin April 23, 2020 Leave a comment

Questions:

I just have upgraded to symfony 2.7, and have a annoying behaviour.

Some connections in my config.yml are optionables, and describe foreign databases that are not intended to be used in every prod instances.

When doing a cache:clear , it seems that now every connections are checked, even if I don’t want them to be active on a particular server.

When setting the –no-warmup option, the problem occurs half the time

php app/console cache:clear --env=prod --no-warmup --verbose
[Doctrine\DBAL\Exception\ConnectionException] An exception occured in driver: SQLSTATE[42000] [1049] Unknown
database ‘bal_syncrho_database’

Exception trace: () at
/var/www/ror3/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php:103
Doctrine\DBAL\Driver\AbstractMySQLDriver->convertException() at
/var/www/ror3/vendor/doctrine/dbal/lib/Doctrine/DBAL/DBALException.php:133
Doctrine\DBAL\DBALException::driverException() at
/var/www/ror3/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOMySql/Driver.php:47
Doctrine\DBAL\Driver\PDOMySql\Driver->connect() at
/var/www/ror3/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php:360
Doctrine\DBAL\Connection->connect() at
/var/www/ror3/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php:429
Doctrine\DBAL\Connection->getDatabasePlatformVersion() at
/var/www/ror3/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php:389
Doctrine\DBAL\Connection->detectDatabasePlatform() at
/var/www/ror3/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php:328
Doctrine\DBAL\Connection->getDatabasePlatform() at
/var/www/ror3/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php:763
Doctrine\ORM\Mapping\ClassMetadataFactory->getTargetPlatform() at
/var/www/ror3/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php:616
Doctrine\ORM\Mapping\ClassMetadataFactory->completeIdGeneratorMapping()
at
/var/www/ror3/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php:174
Doctrine\ORM\Mapping\ClassMetadataFactory->doLoadMetadata() at
/var/www/ror3/vendor/doctrine/common/lib/Doctrine/Common/Persistence/Mapping/AbstractClassMetadataFactory.php:332
Doctrine\Common\Persistence\Mapping\AbstractClassMetadataFactory->loadMetadata()
at
/var/www/ror3/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php:78
Doctrine\ORM\Mapping\ClassMetadataFactory->loadMetadata() at
/var/www/ror3/vendor/doctrine/common/lib/Doctrine/Common/Persistence/Mapping/AbstractClassMetadataFactory.php:216
Doctrine\Common\Persistence\Mapping\AbstractClassMetadataFactory->getMetadataFor()
at
/var/www/ror3/vendor/doctrine/common/lib/Doctrine/Common/Persistence/Mapping/AbstractClassMetadataFactory.php:115
Doctrine\Common\Persistence\Mapping\AbstractClassMetadataFactory->getAllMetadata()
at
/var/www/ror3/vendor/symfony/symfony/src/Symfony/Bridge/Doctrine/CacheWarmer/ProxyCacheWarmer.php:69
Symfony\Bridge\Doctrine\CacheWarmer\ProxyCacheWarmer->warmUp() at
/var/www/ror3/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/CacheWarmer/CacheWarmerAggregate.php:48
Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerAggregate->warmUp()
at /var/www/ror3/app/bootstrap.php.cache:2641
Symfony\Component\HttpKernel\Kernel->initializeContainer() at
/var/www/ror3/app/bootstrap.php.cache:2411
Symfony\Component\HttpKernel\Kernel->boot() at
/var/www/ror3/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Console/Application.php:70
Symfony\Bundle\FrameworkBundle\Console\Application->doRun() at
/var/www/ror3/vendor/symfony/symfony/src/Symfony/Component/Console/Application.php:120
Symfony\Component\Console\Application->run() at
/var/www/ror3/app/console:27

How to&Answers:

Doctrine is trying to determine the Database Platform Version.

You can avoid this behaviour adding in the Doctrine DBAL Configuration the server version. From the doc:

The server_version option was added in Doctrine DBAL 2.5, which is
used by DoctrineBundle 1.3. The value of this option should match your
database server version (use postgres -V or psql -V command to find
your PostgreSQL version and mysql -V to get your MySQL version).

If you don’t define this option and you haven’t created your database yet, you may get PDOException errors because Doctrine will
try to guess the database server version automatically and none is
available.

As example:

#config.yml

doctrine:
    dbal:
    ...
        server_version:       5.6

Hope this help