I installed MySQL 5.7 on Ubuntu 16.04 via apt and created a Database for our Developers. Now i added 2 Slaves to that Master DB Server in the hope that i can migrate these 3 Servers to a Percona Cluster.
What i did is:
Installing 3 Servers Ubuntu 126.04 and MySQL 5.7 Server via apt from the Ubuntu Sources.
Created one Master and 2 Slaves Replication (wich is working fine)
On 3rd. Server uninstalled mysql 5.7 server and backed up /var/lib/mysql folder as well as /etc/mysql/mysql.conf.d/mysqld.cnf
added percona Sources to apt like in this How-To: https://www.percona.com/doc/percona-repo-config/apt-repo.html
try to install percona xtradb cluster server via apt. But that ended in an error and xtradb server could not be installed.
Is there a How-To or some more information on how to move from standard MySQL 5.7 Server (with slaves) to a Percona Cluster?