I have successfully added a second poller while evaluating the ORION 9.0 upgrade. I would now like to remove the 9.0 installation and remove it's connection to my main database running 8.5 .
I was never able to successfully uninstall the 9.0 trial, so now even thought the "2nd poller" is turned off it still shows up when I open the system manager on the 8.5 version. I'm ready to upgrade but I'm a little concerned about this 2nd poller hanging out there.
Do you have any nodes still assigned to the "ghost" poller? If so, you need to reassign them. To make the poller stop showing up in System Manager, go into the Database and delete that poller from the Engiens table.