Add node fails if upgrade is performed from 7.4.2.200 or lower version
Add node fails if the cluster is upgraded from 7.4.2.200 or a lower version to 8.6 and the node that is added is directly configured with 8.6. The add node operation fails because of UID-GID mismatch of primary, sysadmin, storage admin (stoadmin), and system storage admin (sysstoadmin) users.
Workaround:
The node that is being added must follow the same upgrade path as that of the cluster.