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  1. OpenShift Bugs
  2. OCPBUGS-1321

node_exporter collects metrics for "virtual" network interfaces

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    • Icon: Bug Bug
    • Resolution: Done
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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*])
      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 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:

      

      
            
      

      

        1. image-2022-09-14-15-05-23-128.png
          image-2022-09-14-15-05-23-128.png
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    hasun@redhat.com
            Haoyu Sun
            
        
    
            
              

                                              

              
    
              
        
    
              
    
              
        

            
            



    
    spasquie@redhat.com
            Simon Pasquier
            
        
    
    
              

                                                      
              
        
              
            
        
              
        
              
            
                                                Junqi Zhao
                Junqi Zhao
    
                            
        
              
    
              
                                                            
              
    
              
                        
              
        
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                    Updated:
            
                
    
                
        
                                                                                                                                 
    
                

                
            
                
    
                
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