Galera/Percona XtraDB Cluster (PXC) for MySQL is a hot thing right now and some users jump right in without enough testing. Consequently, they’re more likely to either suffer failure or issues that prevent them from moving forward. If you are thinking of migrating your workload to Percona XtraDB Cluster, make sure to go through these basics.
log_slave_updates is REQUIRED
You need to have log_slave_updates enabled on the cluster node acting as async slave for replicated events from the async master to be applied to the other[Read more...]