Hi, Currently, node_exporter exposes time series for each cpu core (an example below), which generates a lot of data in a large cluster (10k nodes cluster). However, we only care about total cpu usage instead of usage per core. So is there a way for node_exporter to only expose aggregated node_cpu_seconds_total?
we also notice there is an discussion here (reduce cardinality of node_cpu_seconds_total <https://groups.google.com/g/prometheus-developers/c/tvPCYZYHOYc>), but it seems no conclusion. node_cpu_seconds_total{container="node-exporter",cpu="85",endpoint="metrics",hostname="603k09311-9-bjsimu01",instance="10.253.108.171:9100",ip="10.253.108.171",job="node-exporter",mode="system",namespace="product-coc-monitor",pod="coc-monitor-prometheus-node-exporter-c2plp",service="coc-monitor-prometheus-node-exporter",prometheus="product-coc-monitor/coc-prometheus",prometheus_replica="prometheus-coc-prometheus-1"} 9077.24 1675059665571 node_cpu_seconds_total{container="node-exporter",cpu="85",endpoint="metrics",hostname="603k09311-9-bjsimu01",instance="10.253.108.171:9100",ip="10.253.108.171",job="node-exporter",mode="user",namespace="product-coc-monitor",pod="coc-monitor-prometheus-node-exporter-c2plp",service="coc-monitor-prometheus-node-exporter",prometheus="product-coc-monitor/coc-prometheus",prometheus_replica="prometheus-coc-prometheus-1"} 19298.57 1675059665571 node_cpu_seconds_total{container="node-exporter",cpu="86",endpoint="metrics",hostname="603k09311-9-bjsimu01",instance="10.253.108.171:9100",ip="10.253.108.171",job="node-exporter",mode="idle",namespace="product-coc-monitor",pod="coc-monitor-prometheus-node-exporter-c2plp",service="coc-monitor-prometheus-node-exporter",prometheus="product-coc-monitor/coc-prometheus",prometheus_replica="prometheus-coc-prometheus-1"} 1.060892164e+07 1675059665571 node_cpu_seconds_total{container="node-exporter",cpu="86",endpoint="metrics",hostname="603k09311-9-bjsimu01",instance="10.253.108.171:9100",ip="10.253.108.171",job="node-exporter",mode="iowait",namespace="product-coc-monitor",pod="coc-monitor-prometheus-node-exporter-c2plp",service="coc-monitor-prometheus-node-exporter",prometheus="product-coc-monitor/coc-prometheus",prometheus_replica="prometheus-coc-prometheus-1"} 4.37 1675059665571 -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/3dcb9c3e-8db6-4841-8519-cec6855a7662n%40googlegroups.com.
