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  1. OpenShift Bugs
  2. OCPBUGS-1321

node_exporter collects metrics for "virtual" network interfaces

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    • 4.12.z
    • 4.12
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      Before this update, `node_exporter` would report metrics about virtual network interfaces such as `tun` interfaces, `br` interfaces, and `ovn-k8s-mp` interfaces. With this update, metrics for these virtual interfaces are no longer collected, which decreases monitoring resource consumption.

      (link:https://issues.redhat.com/browse/OCPBUGS-1321[*OCPBUGS-1321*])
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      Before this update, `node_exporter` would report metrics about virtual network interfaces such as `tun` interfaces, `br` interfaces, and `ovn-k8s-mp` interfaces. With this update, metrics for these virtual interfaces are no longer collected, which decreases monitoring resource consumption. (link: https://issues.redhat.com/browse/OCPBUGS-1321 [* OCPBUGS-1321 *])
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      Description of problem:

      node_exporter collects network metrics for "virtual" interfaces like br-*. When OVN is used, it also reports metrics for ovs-*, ovn, and genev_sys_* interfaces.
      

      Version-Release number of selected component (if applicable):

      4.12 (and before)
      

      How reproducible:

      Always
      

      Steps to Reproduce:

      1. Launch a 4.12 cluster.
      2. Run the following PromQL query: "group by(device) (node_network_info)"
      3.
      

      Actual results:

      Expected results:

      Only real host interfaces should be present.
      

      Additional info:

      
      

            hasun@redhat.com Haoyu Sun
            spasquie@redhat.com Simon Pasquier
            Junqi Zhao Junqi Zhao
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              Created:
              Updated:
              Resolved: