Hi - I’m looking to migrate a Percona server (currently master->slave->slave setup on version 5.5) to PXC. My questions are in regards to the MySQL datadir: can I simply uninstall Percona Server (using yum for example) and install PXC on the machines I’m migrating? Will the /var/lib/mysql remain intact?
I’ve tested this in a dev environment and it seemed to work fine (even going from Percona server 5.5 to PXC 5.7). All the data was intact after migration. I was wondering if there was anything I should be concerned about. Also would it be more prudent to install 5.5, then upgrade PXC to 5.6 and then 5.7?