Currently any hostname information is not passed by xtrabackup, hence, it may not be possible to currently ensure #8, it is upto the admin who is running this to ensure this (and enforce with wsrep_sst_donor).
Currently any hostname information is not passed by xtrabackup, hence, it may not be possible to currently ensure #8, it is upto the admin who is running this to ensure this (and enforce with wsrep_sst_donor).