DocumentationCommerceTools

ACP2E-5027: Indexers don’t finish when application locking uses the file lock provider

Last update: October 26, 2026

CREATED FOR:

  • Experienced
  • Admin
  • Developer

The ACP2E-5027 patch fixes the issue where indexers never finish because they keep trying to acquire their own lock when use_application_lock is enabled and the file lock provider is configured. This patch is available when the Quality Patches Tool (QPT) 1.1.84 is installed. The patch ID is ACP2E-5027. This issue is scheduled to be fixed in Adobe Commerce 2.4.10.

Affected products and versions

The patch is created for Adobe Commerce version:

  • Adobe Commerce (all deployment methods) 2.4.9

Compatible with Adobe Commerce versions:

  • Adobe Commerce (all deployment methods) 2.4.4 - 2.4.9
NOTE
The patch might become applicable to other versions with new Quality Patches Tool releases. To check if the patch is compatible with your Adobe Commerce version, update the magento/quality-patches package to the latest version and check the compatibility on the Quality Patches Tool: Search for patches page. Use the patch ID as a search keyword to locate the patch.

Issue

Indexers never finish because they keep trying to acquire their own lock when use_application_lock is enabled and the file lock provider is configured.

Steps to reproduce:

  1. In app/etc/env.php, enable the application lock for indexers and set the lock provider to file:

    code language-none 
    'indexer' =>
array (
  'use_application_lock' => true,
),
'lock' =>
array (
  'provider' => 'file',
  'config' =>
  array (
    'path' => '<magento_root>/var/lock',
  ),
)

  2. Run the catalog_product_category indexer:

    code language-none 
    bin/magento indexer:reindex catalog_product_category

Expected results:

The catalog_product_category reindex completes successfully.

Actual results:

The reindex never completes.

Apply the patch

To apply individual patches, use the following links depending on your deployment method:

To learn more about Quality Patches Tool, refer to:

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commerce-operations-help-tools