I want to know How exactly a poller works. Do a Poller needs permanent network connectivity with the central server (RRD and MySQL)?
I want to know what will happen if a Poller loses its network connectivity with the central server. Does it continue collecting data, and when the primary server is reachable transmitting data?
For example, I have a LibreNMS in my headquarters and many branches.
What happens if one of the branches loses its connection to the headquarters? Am I lost my data for the time frame of network connectivity failed between the branches with the headquarters or not?