The SQL connections are stored in the server.xml file. The changes to the file must be put back in when you upgrade as the file is overwritten during the upgrade process. Any changed files should be backed up by the upgrade process, so you should be able to see what you had in there prior to the upgrade.
Davin's answer is the most likely scenario if you have just done an upgrade. Any custom configuration you do in Confluence (including adding datasources to your server.xml file) need to be remembered in your upgrade process documentation and then re-applied after the upgrade.
And if you are still having problems open a support issue with us.
Ok, that's clear. What data sources have you made available in the Confluence configuration? If it was working on a previous version, then my best guess is that you have lost/overwritten the datasource configuration the plugin is using when you upgraded. You'll need to look at the config you had before.
Hi team, I’m Avinoam, a product manager on Confluence Cloud, and today I’m really excited to let the Community know that all customers can now try out the new editing experience and see some of the ...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs