[Magento 2.4.8-p3] Backend Catalog > Categories not loading

[vincentwennink]

Preconditions and environment

• 150K+ Products
• 800+ Categories

Steps to reproduce

1. Update from Magento version 2.4.7-p8 to 2.4.8-p3
2. Go to backend Catalog > Categories

Expected result

Categories are loading.

Actual result

Categories not loading (spinner). The query takes too long.

Function loadProductCount() in vendor/magento/module-catalog/Model/ResourceModel/Category/Collection.php is causing this. If if ($countAnchor) { is replaced with the condition as shown below (as it was in 2.4.7-p8), the categories load without any issues.

if ($countAnchor) { // Retrieve Anchor categories product counts $categoryIds = array_keys($anchor); $countSelect = $this->getProductsCountQuery($categoryIds, (bool)$websiteId); $categoryProductsCount = $this->_conn->fetchPairs($countSelect); foreach ($anchor as $item) { $productsCount = isset($categoryProductsCount[$item->getId()]) ? (int)$categoryProductsCount[$item->getId()] : $this->getProductsCountFromCategoryTable($item, $websiteId); $item->setProductCount($productsCount); } }

Additional information

No response

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

Hi @vincentwennink. Thank you for your report.
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[m2-assistant]

Hi @engcom-Bravo. Thank you for working on this issue.
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[hostep]

It kind of sounds like these issues:

• Backoffice category tree takes an incredibly long time to display in 2.4.8 #39829
• Slow to open category edit page with multiple categories and products due to product counts #39584

Official fix for those 2 is: ACP2E-3891: Categories in admin are loading very slow to be released in Magento 2.4.9 in a few months, maybe you can give these code changes a try and see if that solves your issue?
This same fix is also known under the name "ACSD-65848" in the quality patches repository

[engcom-Bravo]

@hostep Thanks for your Contribution.

Hi @vincentwennink,

Thanks for your reporting and collaboration.

Could you please try out above patches and let us know if you are still facing any issue.

Thanks.