php/symfony/doctrine memory leak?

Question

I\'m having problems with a batch insertion of objects into a database using symfony 1.4 and doctrine 1.2.

My model has a certain kind of object called \"Sector\", e

Answer 1

For a symfony task, I also faced to this issue and done following things. It worked for me.

• Disable debug mode. Add following before db connection initialize

  sfConfig::set('sf_debug', false);
  

• Set auto query object free attribute for db connection

  $connection->setAttribute(Doctrine_Core::ATTR_AUTO_FREE_QUERY_OBJECTS, true );
  

• Free all object after use

  $object_name->free()
  

• Unset all arrays after use unset($array_name)

• Check all doctrine queries used on task. Free all queries after use. $q->free() (This is a good practice for any time of query using.)

That's all. Hope it may help someone.

Answer 2

For me , I've just initialized the task like that:

// initialize the database connection
$databaseManager = new sfDatabaseManager($this->configuration);
$connection = $databaseManager->getDatabase($options['connection'])->getConnection();
$config = ProjectConfiguration::getApplicationConfiguration('frontend', 'prod', true);
sfContext::createInstance($config);

(WITH PROD CONFIG)
and use free() after a save() on doctrine's object

the memory is stable at 25Mo

memory_get_usage=26.884071350098Mo

with php 5.3 on debian squeeze

Answer 3

Periodically close and re-open the connection - not sure why but it seems PDO is retaining references.