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mysqljoomla

Joomla - Could not connect to MySQL - "Sometime"

Error displaying the error page: Application Instantiation Error: Could not connect to MySQL.

This Error is shown sometimes (one every 20 pageviews) and I tried a lot of solutions without any change.

This error found with Joomla 3.5+

Solution

  • Server RAM was very low!

    After upgrade from 0.5GB to 2GB all the kind of error starts with Error displaying the error page: gone.

    I found the problem solution by using htop while connecting to the server via SSH, after that, I start opening pages rapidly which show the error plus the htop shows that the RAM was close to full.

    show processlist; were helpful to find that the problem not about the connection number.which it may sometimes cost the same error in the same way.