I am new to XtraDB and bootstrapped a 3 node cluster. Then I verified the cluster was sync’d and connected through show status and a simple insert followed by select. All works well! Then I shutdown two nodes to simulate an outage and processed an insert to the last remaining running node successfully. How can this be? Quorum can’t be achieved with 1 of 3 nodes connected? show status on the last running node has a wsrep_cluster_size of 1. Shouldn’t this be 3? I’m assuming I have something set-up wrong… I am not ignoring quorum or split brain…
I used the tutorial here for initial configuration:
Any help is appreciated. Thank you!