I am trying to set up cluster according to this manual
https://docs.opendaylight.org/en/stable-magnesium/getting-started-guide/clustering.html
But i also woukd like to know how does it work. There is written that i choose which node/controller is leader and which will follow after leader is down using member role - 1 - 2 in akka.config. But in some work i have read it is using RAFT algorithm to choose/elect leader. Am i mixing it up somehow? Can someone explain it to me please?
The nodes you specify when setting up an OpenDaylight cluster are all equal, there is no pre-selection of a leader. When the cluster starts up, the controller nodes will participate in a RAFT election to choose the leader.