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Decoding the Magento 2.3 Upgrade: Unraveling the Mystery of Sudden CPU Overloads and Discovering Solutions for Lightning Fast Queries

Decoding the Magento 2.3 Upgrade: Unraveling the Mystery of Sudden CPU Overloads and Discovering Solutions for Lightning Fast Queries

The Magento 2.3 upgrade mystery lies in the connection between the 'Popular Search Term Cache' feature and the SELECT DISTINCT COUNT query. Websites faced sudden CPU overloads post-upgrade, traced back to the database swarmed with frequent, resource-draining queries. The key issue is the num_results > 0 condition in the query, causing a significant slowdown. This issue occurs across Magento versions, with the SELECT COUNT(*) query at the heart of the problem. The DISTINCT operator significantly degrades performance. Several fixes have been suggested to reintroduce balance between Magento's functionality and CPU loads. Each solution needs evaluation for Magento compatibility and potential impact on other functionalities. Hence, enhancing performance involves explained understanding, testing, and optimizing.

Full article here: https://lawsuithelpdesk.com/decoding-the-magento-2-3-upgrade-unraveling-the-mystery-of-sudden-cpu-overloads-and-discovering-solutions-for-lightning-fast-queries/

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