Moving matomo to a different domain on the same hosted server - failed

[Lukas (Lukas Winkler)]

Hi,

@hainfelder

As this is causing another SSL Handshake and DNS lookup (takes sometimes 0.6 seconds) i wanted to move matomo to the same directory and same domain to speed things up for my visitors and pagespeed.

I’m not too sure if this is worth the move. If your DNS lookup takes up to 0.6s, this is something you should look into. At least for my website the SSL handshake, TCP connection and DNS resolution overhead of the Matomo subdomain is 31ms, 28ms and 8ms. Also they are all only on the first request and even if they took a long time it would not slow down your website as Matomo is only starting loading once the website can be interacted with by the user.

Subdomains have their advantages as they separate Cookies (which is good for security) and make sure .htaccess rules don’t affect other applications in subdirectories.

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But that is besides your point. MySQL server has gone away can have many reasons as it is caused by the connection between PHP and MySQL.

See here for some tips:

How do I fix the error "Mysql Server has gone away"? - Troubleshooting -...

MySQL server has gone away

I had the same problem and I think I fixed it with the php.ini setting: mysqlnd.net_read_timeout = 31536000 See: https://www.php.net/manual/en/mysqlnd.config.php " Available since PHP 5.3.0. Before PHP 7.2.0 the default value was “31536000” and the changeability was PHP_INI_SYSTEM"