@ plago: Yes it will upgrade that node and progress to every node automatically. The only way to not upgrade other nodes is by disabling them from cluster temporarily. @ red: If you pre-stage the exact same package version locally to each node and then initiate upgrade from one node then it will upgrade all nodes in the cluster by utilizing each nodes locally staged package rather than pushing it out to each nodes. In fact I would recommend this option to reduce the maintenance window by not having to wait for each node to push software packages over WAN links.
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