I am trying to add a new node to my Galera cluster. The existing nodes are Ubuntu 14.04 and the new node is Ubuntu 16.04. I am running the Percona xtradb cluster in version 5.5, installed via ClusterControl on the existing nodes.
When I add a new node the install fails with this message:
failed to setup galera: 'DEBIAN_FRONTEND=noninteractive LC_ALL=C apt-get -o Dpkg::Options::='--force-confnew' -qq -y --force-yes install percona-xtradb-cluster-galera- percona-xtradb-cluster-client-5.5 percona-xtradb-cluster-server-5.5 percona-toolkit percona-xtrabackup 2>&1' failed: E: Package 'percona-xtradb-cluster-client-5.5' has no installation candidate
E: Package 'percona-xtradb-cluster-server-5.5' has no installation candidate
Which is understandable because there is no version 5.5 for Xenial (Ubuntu 16.04).
Any idea what i can do? Do I need to upgrade the existing nodes first? Can I not mix different versions of the DB? If I can, how do I tell ClusterControl to install another version?
Thanks for the help.
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