Percona 5.5 not available on Xenial, adding node fails because of that

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    Ashraf Sharif

    Hi Andreas,

    Strictly speaking, mixing different major version of Galera nodes is prohibited. So you either have to upgrade the existing nodes to PXC 5.6 or use 14.04 for the new node and stick at PXC 5.5.

    My recommendation - I would say that it's time for you to upgrade the existing nodes to PXC 5.6 before introducing a new node into the cluster. Performing major version upgrade can be done online or offline as shown in this guide: https://www.percona.com/doc/percona-xtradb-cluster/5.6/upgrading_guide_55_56.html .

    Once added, ClusterControl will detect the new version automatically and you should be able to add the Xenial node.

    Regards,
    Ashraf

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