I.e. it's not possible to show e.g. cpu or swap usage across all nodes.
Specific stats REST call doesn't support system stats
cpu percenage per server stats is broken in the ui
some system level stats ( cpu , ram and swap ) missing from stats page
Those are very old bugs Currently UI doesn't show any of the server stats if the particular node is not selected. So I don't see any problem at all.
UI hides them exactly because of those issues. I think it's very useful to show e.g. CPU usage across all nodes.
what kind of aggregation do you think I should use for these values?
mean, max, or sum? or something else.
max for CPU seems to be the better choice because you will see if at least one node's CPU is overloaded
and for the rest of the server values I think I will use sum
I agree with you.