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  1. OpenShift Bugs
  2. OCPBUGS-1321

node_exporter collects metrics for "virtual" network interfaces

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Details

    • Bug
    • Resolution: Done
    • Normal
    • 4.12.z
    • 4.12
    • Monitoring
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    • Low
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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*])
      Show
      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 *])
    • Bug Fix
    • Done

    Description

      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:

      

      
            
      

      

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            Task - Represents a small unit of work that is not end-user facing.
        
        MON-2640
        Investigate potential solutions for BZ 2097620
    

          

            
        
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            GitHub
        
        openshift/cluster-monitoring-operator#1780: OCPBUGS-1321: Node Exporter - ignore virtual NICs from OVNK cluster
        
    

          

            
    
          

                                        
          
                                    
          
                    
          
        
          

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    hasun@redhat.com
            Haoyu Sun
            
        
    
            
              

                                              

              
    
              
        
    
              
    
              
        

            
            



    
    spasquie@redhat.com
            Simon Pasquier
            
        
    
    
              

                                          
              
        
              
            
        
              
        
              
            
                                                Junqi Zhao
                Junqi Zhao
    
                            
        
              
    
              
    
              
    
              
                        
              
        
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