Comment 3 for bug 1524672

I marked the previous fix as 'Partial-Bug: #1524672', but after further investigations I suppose it closes the current issue.

Node attributes are also created in 'fuel-library/files/fuel-ha-utils/ocf/mysql-wss' but we shouldn't change them to private:
        -'galera_master_timeout' is a cluster option
        -'gtid' should be public as we are getting its value in 'get_possible_masters()' method for all online nodes in cluster.