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Memcached is a distributed memory caching system which is often used to speed up dynamic database-driven sites by caching data & objects in Memory (RAM) to reduce the reading time of an external data source. It is high-performance, generic in nature, but intended for use in speeding up dynamic websites by alleviating database load. Memcached provides a big hash table that can be distributed across multiple machines. When the table is overloaded, subsequent inserts cause older data to be purged in the Least Recently Used (LRU) order. Magento uses Memcached for session storage. I recommend you to use Memcached with Magento for session storage instead of Redis because Redis does not support session locking. PHP has no native support for Memcached. You will need to install a Memcached extension for PHP to use it.<?php phpinfo(); ?>Now browse that page in your web browser. For example:
http://yourwebsite.com/phpinfo.phpFinally, make sure that Memcached displays as follows:
'session' => array ( 'save' => 'files', ),Change the above code as follows:
'session' => array ( 'save' => 'memcached', 'save_path' => 'memcached ip or host:memcached port', ),Once you are done, save the env.php file, and now finally, we will verify whether we have successfully configured Memcached with Magento 2 or not.
rm -rf var/page_cache/* var/cache/* var/session/*Now visit any page on the store and log in to your Magento Admin and browse other pages as well and see if no errors display. If so, it means Memcached is working! If you face any error such as HTTP 500 (Internal Server Error) or Processing error, make sure that Memcached is running and configured correctly and env.php has no syntax errors.
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how can i obtain memcacahed ip and port