Just Because You Can, Doesn’t Mean You Should: Re-evaluating Galera Node Weights

We all know that when using a cluster based on Galera (Codership) such as Percona XtraDB Cluster (PXC), it is recommended to deploy an odd number of nodes. The generic answer to this recommendation is that otherwise the risk of having an inconsistent cluster (like split-brain) is higher.  (see Get started with Percona XtraDB Cluster – Percona... Weiterlesen: Just Because You Can, Doesn’t Mean You Should: Re-evaluating Galera N…