I have a cluster and I want to get metrics every 1-3 seconds, to benchmark some algorithms on spark. I’ve set the data_source “my cluster name” 1 hosts…. (multicast). The UI on the hours tab, gives me the results in every 12 seconds, that’s too chunky for what I want to accomplish. I used the rrdtool export –step 1 etc… and I don’t get the results every second. What did I wrong?
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