Así que planteé un error con Magento, incluida una "solución" que debería tratar los problemas de uso de memoria en el proceso de importación de imágenes.
La solución se puede encontrar en github en https://github.com/sitewards/import_image_memory_leak_fix pero la idea básica es.
Arreglando el Mage_Catalog_Helper_Image::validateUploadFile
para llamar realmente al destruct
método en el procesador de imágenes. Lamentablemente, parece que el valor predeterminado Varien_Image
no trata con undestruct
por lo que hemos tenido que agregar nuestra propia clase que sí lo hace.
<?php
/**
* @category Sitewards
* @package Sitewards_ImportImageMemoryLeakFix
* @copyright Copyright (c) Sitewards GmbH (http://www.sitewards.com/)
*/
class Sitewards_ImportImageMemoryLeakFix_Model_Destructable_Image extends Varien_Image
{
/**
* Constructor,
* difference from original constructor - we register a destructor here.
*
* @param string $sFileName
* @param Varien_Image_Adapter $oAdapter Default value is GD2
*/
public function __construct($sFileName = null, $oAdapter = Varien_Image_Adapter::ADAPTER_GD2)
{
parent::__construct($sFileName, $oAdapter);
// Initialize shutdown function
register_shutdown_function(array($this, 'destruct'));
}
/**
* Destroy object image on shutdown
*/
public function destruct()
{
$oAdapter = $this->_getAdapter();
if (method_exists($oAdapter, 'destruct')) {
$oAdapter->destruct();
} else {
Mage::log('Image can not be destructed properly, adapter doesn\'t support the method.');
}
}
}
Y luego una reescritura del ayudante.
<?xml version="1.0"?>
<config>
<modules>
<Sitewards_ImportImageMemoryLeakFix>
<version>0.1.0</version>
</Sitewards_ImportImageMemoryLeakFix>
</modules>
<global>
<models>
<sitewards_importimagememoryleakfix>
<class>Sitewards_ImportImageMemoryLeakFix_Model</class>
</sitewards_importimagememoryleakfix>
</models>
<helpers>
<catalog>
<rewrite>
<image>Sitewards_ImportImageMemoryLeakFix_Helper_Catalog_Helper_Image</image>
</rewrite>
</catalog>
</helpers>
</global>
</config>
Y la nueva función llama a la nueva clase de imagen destruible.
<?php
/**
* @category Sitewards
* @package Sitewards_ImportImageMemoryLeakFix
* @copyright Copyright (c) Sitewards GmbH (http://www.sitewards.com/)
*/
class Sitewards_ImportImageMemoryLeakFix_Helper_Catalog_Helper_Image extends Mage_Catalog_Helper_Image
{
/**
* Check - is this file an image
*
* Difference from original method - we destroy the image object here,
* i.e. we are not wasting memory, without that fix product import with images
* easily goes over 4Gb on memory with just couple hundreds of products.
*
* @param string $sFilePath
*
* @return bool
* @throws Mage_Core_Exception
*/
public function validateUploadFile($sFilePath) {
if (!getimagesize($sFilePath)) {
Mage::throwException($this->__('Disallowed file type.'));
}
/** @var Sitewards_ImportImageMemoryLeakFix_Model_Destructable_Image $oImageProcessor */
$oImageProcessor = Mage::getModel('sitewards_importimagememoryleakfix/destructable_image', $sFilePath);
$sMimeType = $oImageProcessor->getMimeType();
$oImageProcessor->destruct();
return $sMimeType !== null;
}
}