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The MySQL is regularly going away for Magento 2 only. While working, if I refresh cache, then it shows gone.

I can login to the MySQL and do all the queries. It is working. Also, the local Magento 1 will work properly. Only the Magento 2 has a problem.

 3 exception(s):
    Exception #0 (Zend_Db_Adapter_Exception): SQLSTATE[HY000] [2006] MySQL server has gone away
    Exception #1 (PDOException): SQLSTATE[HY000] [2006] MySQL server has gone away
    Exception #2 (Exception): Warning: PDO::__construct(): MySQL server has gone away in /Library/WebServer/Documents/magento/store2/public_html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php on line 129

    Exception #0 (Zend_Db_Adapter_Exception): SQLSTATE[HY000] [2006] MySQL server has gone away
    #0 /Library/WebServer/Documents/magento/store2/public_html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Mysql.php(111): Zend_Db_Adapter_Pdo_Abstract->_connect()
    #1 /Library/WebServer/Documents/magento/store2/public_html/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(340): Zend_Db_Adapter_Pdo_Mysql->_connect()
    #2 /Library/WebServer/Documents/magento/store2/public_html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Abstract.php(460): Magento\Framework\DB\Adapter\Pdo\Mysql->_connect()
    #3 /Library/WebServer/Documents/magento/store2/public_html/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SHOW TABLES', Array)
  • Please check your Mysql connection again with user name and pwd. – Khoa TruongDinh Aug 4 '16 at 10:35
  • I have checked mysql connection. When, i get the error in the magento2 website, i can open in another tab magento1 website connected to separate database in localhost. Able to login to mysql command line with the magento2 database, and execute queries. i am using macbook for local development with magento1 and magento2 instances. Migrating modules from magento1 to magento2. – santhoshnsscoe Aug 4 '16 at 11:35
  • You can try these suggestions. – Steve Johnson Aug 5 '16 at 19:19
  • Tried it, but of no luck. Still getting the error, regularly. – santhoshnsscoe Aug 9 '16 at 6:16
  • i have uninstalled mysql and installed mariadb. Now it is working properly, and has not given the error till now. – santhoshnsscoe Aug 12 '16 at 5:10
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After removing the mysql and installing mariadb, the problem has gone. I think, there was some problem in my mysql. Didn't try re-installing mysql.

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