Hello! Node A will have two choices: either drop partition completely and re-download it from B, or replicate recent changes on it. Either one will be choosed internally. Node A will only become primary again when it finishes syncing that partition.
Regards, -- Ilya Kasnacheev пт, 14 сент. 2018 г. в 22:23, eugene miretsky <eugene.miret...@gmail.com>: > What is the process when a node goes down and then restarts? > > Say backups = 1. We have node A that is primary for some key, and node B > that is back up. > > Node A goes down and then restarts after 5 min. What are the steps? > 1) Node A is servicing all traffic for key X > 2) Node A goes down > 3) Node B starts serving all traffic for key X (I guess the clients detect > the failover and start calling node B ) > 4) Node A comes back up > 5) WAL replication is initiated > > What happens next? When does node A become the primary again? How are > in-flight updates happen? > >
