Elasticsearch

This post explains how to set custom Elasticsearch configuration within Warden to fix the Fielddata access on the _id field is disallowed error with Elasticsearch 8. This is a follow on from a earlier post explaining common ES8 configuration issues with Magento. The error was are going to fix related to ES8 changing the default values for _id fielddata Fielddata access on the _id field is disallowed, you can re-enable it by updating the dynamic cluster setting: indices....

Have you upgrade to Magento 2.4.6 recently for the improved performance / support lifetime? Or maybe you have upgraded to 2.4.7 where Elasticsearch 8 is the only supported Elasticsearch Version now. We have spotted a major issue post update, where your catalog and search pages might be looking a little sorry for themselves… with ZERO products! Not ideal. There are a few configuration changes that are required to get Elasticsearch 8 to play nicely with Magento, that are easily overlooked in the upgrade notes (or absent entirely!...