Optimizer Preview Seems to Be incompatible with Magento Cloud Pro

[jordanvector]

Preconditions

Magento Version : 2.2.4

ElasticSuite Version : 2.5.9

Environment : Prod

Third party modules :

Steps to reproduce

1. Create optimizer and run a preview query on MCE pro
2. 503 is returned /admin/smile_elasticsuite_catalog_optimizer/optimizer/preview/ajax/1/key/c920c29c5a03ef18ad1b162993d8a33985fd1f84b201acf3e1516537fe659d68/?isAjax=true 503 ()

What seems to be happening is that the optimizer preview is trying to generate a factory on the fly and is failing because magento cloud will not let it write to the generated folder. The magento cloud pro environment symlinks the generated folder and is the not writable after the build process (Only for pro environments). So for now it looks like this feature is not compatible with MCE pro. MCE integration environments work (because its a single node system and has permission to write to the generated folder after deployment).

Expected result

1. Products returned

Actual result

1. [Screenshot, logs]

Here is the full stack trace:

Stack trace
RuntimeException: Noticed exception 'RuntimeException' with message 'Can't create directory /app/7alebf6ygqtlm/generated/code/Smile/ElasticsuiteCatalogOptimizer/Model/Optimizer/Collection/Provider/. in [Smile\ElasticsuiteCatalogOptimizer\Model\Optimizer\Collection\Provider\ExcludeFactory]' in /app/7alebf6ygqtlm/vendor/magento/framework/Code/Generator.php:115
in Magento\Framework\Code\Generator::generateClass called at /app/7alebf6ygqtlm/vendor/magento/framework/Code/Generator/Autoloader.php (35)
in Magento\Framework\Code\Generator\Autoloader::load called at ? (?)
in spl_autoload_call called at ? (?)
in ReflectionClass::__construct called at /app/7alebf6ygqtlm/vendor/magento/framework/Code/Reader/ClassReader.php (19)
in Magento\Framework\Code\Reader\ClassReader::getConstructor called at /app/7alebf6ygqtlm/vendor/magento/framework/ObjectManager/Definition/Runtime.php (44)
in Magento\Framework\ObjectManager\Definition\Runtime::getParameters called at /app/7alebf6ygqtlm/vendor/magento/framework/ObjectManager/Factory/Compiled.php (100)
in Magento\Framework\ObjectManager\Factory\Compiled::create called at /app/7alebf6ygqtlm/vendor/magento/framework/ObjectManager/Factory/Compiled.php (150)
in Magento\Framework\ObjectManager\Factory\Compiled::get called at /app/7alebf6ygqtlm/vendor/magento/framework/ObjectManager/Factory/Compiled.php (125)
in Magento\Framework\ObjectManager\Factory\Compiled::parseArray called at /app/7alebf6ygqtlm/vendor/magento/framework/ObjectManager/Factory/Compiled.php (86)
in Magento\Framework\ObjectManager\Factory\Compiled::create called at /app/7alebf6ygqtlm/vendor/magento/framework/ObjectManager/Factory/Compiled.php (150)
in Magento\Framework\ObjectManager\Factory\Compiled::get called at /app/7alebf6ygqtlm/vendor/magento/framework/ObjectManager/Factory/Compiled.php (79)
in Magento\Framework\ObjectManager\Factory\Compiled::create called at /app/7alebf6ygqtlm/vendor/magento/framework/ObjectManager/ObjectManager.php (56)
in Magento\Framework\ObjectManager\ObjectManager::create called at /app/7alebf6ygqtlm/generated/code/Smile/ElasticsuiteCatalogOptimizer/Model/Optimizer/PreviewFactory.php (43)
in Smile\ElasticsuiteCatalogOptimizer\Model\Optimizer\PreviewFactory::create called at /app/7alebf6ygqtlm/vendor/smile/elasticsuite/src/module-elasticsuite-catalog-optimizer/Controller/Adminhtml/Optimizer/Preview.php (129)
in Smile\ElasticsuiteCatalogOptimizer\Controller\Adminhtml\Optimizer\Preview::getPreviewObject called at /app/7alebf6ygqtlm/vendor/smile/elasticsuite/src/module-elasticsuite-catalog-optimizer/Controller/Adminhtml/Optimizer/Preview.php (93)
in Smile\ElasticsuiteCatalogOptimizer\Controller\Adminhtml\Optimizer\Preview::execute called at /app/7alebf6ygqtlm/vendor/magento/framework/App/Action/Action.php (107)
in Magento\Framework\App\Action\Action::dispatch called at /app/7alebf6ygqtlm/vendor/magento/module-backend/App/AbstractAction.php (229)
in Magento\Backend\App\AbstractAction::dispatch called at /app/7alebf6ygqtlm/vendor/magento/framework/Interception/Interceptor.php (58)
in Smile\ElasticsuiteCatalogOptimizer\Controller\Adminhtml\Optimizer\Preview\Interceptor::___callParent called at /app/7alebf6ygqtlm/vendor/magento/framework/Interception/Interceptor.php (138)
in Smile\ElasticsuiteCatalogOptimizer\Controller\Adminhtml\Optimizer\Preview\Interceptor::Magento\Framework\Interception{closure} called at /app/7alebf6ygqtlm/vendor/magento/module-backend/App/Action/Plugin/Authentication.php (143)
in Magento\Backend\App\Action\Plugin\Authentication::aroundDispatch called at /app/7alebf6ygqtlm/vendor/magento/framework/Interception/Interceptor.php (135)
in Smile\ElasticsuiteCatalogOptimizer\Controller\Adminhtml\Optimizer\Preview\Interceptor::Magento\Framework\Interception{closure} called at /app/7alebf6ygqtlm/vendor/magento/framework/Interception/Interceptor.php (153)
in Smile\ElasticsuiteCatalogOptimizer\Controller\Adminhtml\Optimizer\Preview\Interceptor::___callPlugins called at /app/7alebf6ygqtlm/generated/code/Smile/ElasticsuiteCatalogOptimizer/Controller/Adminhtml/Optimizer/Preview/Interceptor.php (26)
in Smile\ElasticsuiteCatalogOptimizer\Controller\Adminhtml\Optimizer\Preview\Interceptor::dispatch called at /app/7alebf6ygqtlm/vendor/magento/framework/App/FrontController.php (55)
in Magento\Framework\App\FrontController::dispatch called at /app/7alebf6ygqtlm/vendor/magento/framework/Interception/Interceptor.php (58)
in Magento\Framework\App\FrontController\Interceptor::___callParent called at /app/7alebf6ygqtlm/vendor/magento/framework/Interception/Interceptor.php (138)
in Magento\Framework\App\FrontController\Interceptor::Magento\Framework\Interception{closure} called at /app/7alebf6ygqtlm/vendor/magento/framework/Interception/Interceptor.php (153)
in Magento\Framework\App\FrontController\Interceptor::___callPlugins called at /app/7alebf6ygqtlm/generated/code/Magento/Framework/App/FrontController/Interceptor.php (26)
in Magento\Framework\App\FrontController\Interceptor::dispatch called at /app/7alebf6ygqtlm/vendor/magento/framework/App/Http.php (135)
in Magento\Framework\App\Http::launch called at /app/7alebf6ygqtlm/vendor/magento/framework/App/Bootstrap.php (256)
in Magento\Framework\App\Bootstrap::run called at /app/7alebf6ygqtlm/pub/index.php (37)

[afoucret]

Just to be sure it is not related to #908, did you manage to finish compile ?
Else it is fully normal.

[jordanvector]

Yep without the target rule module search compiles, indexes, and displays results correctly. This is specifically for the preview feature in the optimzer

[afoucret]

OK
Will have a look monday at this one.

[afoucret]

This bug should be solved by PR #910 and it will be part of the upcoming 2.5.10 maintenance release.
I close since a patch have been proposed in the PR. Feel free to test it and give us a feedback.