Cacti spine not updating rrd
I assumed the connection is not properly stored after the reconnect attempt of the poller.My attempt to resolve that looked promising at first, but the resulting graphs were still faulty. The workaround I developed earlier and presented in this answer still works perfectly.
Once the /etc/udev/rules.d/70-persistent-net.rules file is moved out of the way, and the ifcfg-eth0 configuration is updated, reboot the system and you should have networking.
Sure enough, when the error message is looped, the What the heck is going on here?
I concluded that the database connection must be lost somewhere in the process and adodb simply doesn't care.
To minimize any gaps in graphs, we will prepare the newer server first (while Cacti at the old server is still running).
We will start the process by installing Cacti in the new server.