If we have a K-Safe database, we can replace nodes, as a copy of the data will be maintained under the nodes. We do not need to shut down the database to replace the nodes.
Sometimes, you will be required to upgrade one or more nodes in the cluster. If the new node has the same IP as the original node, then use the following method for replacement:
install_verticascript with the
-s(used for providing the hostname or IP(s)) and
–r(the path of the
# /opt/vertica/sbin/install_vertica -s host -r rpm_package