The FAILOVER command causes the backup node to take over all sets that currently originate on the failed node. slonik will contact all other direct subscribers of the failed node to determine which node has the highest sync status for each set. If another node has a higher sync status than the backup node, the replication will first be redirected so that the backup node replicates against that other node, before assuming the origin role and allowing update activity.
After successful failover, all former direct subscribers of the failed node become direct subscribers of the backup node. The failed node is abandoned, and can and should be removed from the configuration with DROP NODE.
| Warning |
This command will abandon the status of the failed node. There is no possibility to let the failed node join the cluster again without rebuilding it from scratch as a slave. If at all possible, you would likely prefer to use MOVE SET instead, as that does not abandon the failed node. |
ID of the failed node
Node ID of the node that will take over all sets originating on the failed node