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I am getting an error like this in the site. How can I resolve it? I am using Memcache for session storage. My Magento version is 2.1.15

Warning: SessionHandler::read(): Unable to clear session lock record in /var/www/vendor/magento/framework/Session/SaveHandler/Native.php on line 22

Anyhelp thanks...

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This happens when your session.save_handler PHP parameter is set to some another session storage than files (for example, redis, memcached, and so on). This is a known issue we’re working to resolve.

Solutions:

Locate php.ini

Locate php.ini by entering the following command:

php -i | grep "Loaded Configuration File"

Typical locations follow:

  • Ubuntu: /etc/php5/cli/php.ini
  • CentOS: /etc/php.ini

Workaround

  1. As a user with root privileges, open php.ini in a text editor.
  2. Locate session.save_handler
  3. Set it in any of the following ways:

To comment it out:

;session.save_path = <path>

To set it to a file system path:

session.save_handler = files

References:

  1. https://devdocs.magento.com/guides/v2.1/install-gde/trouble/php/tshoot_session.html

  2. https://github.com/magento/magento2/issues/5319

I hope this will help

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