title: Connection failed to mysql database after upgrade to version 8 AWS
body: <p>I am experiencing an issue after the MYSQL upgrade from version 5.7 to 8 on <strong>AWS RDS</strong>. Before the upgrade, my server used to work properly but immediately after getting the database updated to version 8, it appears to be broken. The error is as follows:</p>
  <pre><code>Connections could not be acquired from the underlying database!
  </code></pre>
  <p>I am fairly new to MYSQL and I could not find a suitable online solution to solve this issue. Ideally, I would like to know if there is a proper way to view an &quot;in-depth&quot; log about any exceptions causing this as it is the only error message I am getting. Or perhaps, I am looking for some guidance about what might cause this failure in the database connection, please.</p>
  <p>I am lost at this point.</p>
  <p>Your help will be much more appreciated!</p>
  <p>I wish to thank you in advance for your help.</p>