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  1. OpenShift Bugs
  2. OCPBUGS-49368

Duplicate EgressIP getting assigned to nodes.

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      Description of problem: Duplicate EgressIP getting assigned to nodes.

      Version-Release number of selected component (if applicable): 4.16

      How reproducible:

      Created duplicate EgressIP egress-group1 and egressdec with IP (10.74.235.42) even-though it is not getting assigned to node.

      oc get eip
      NAME            EGRESSIPS      ASSIGNED NODE               ASSIGNED EGRESSIPS
      egress-group1   10.74.235.42   master1.ocp4.klakhwar.com   10.74.235.42  --> Same IP (10.74.235.42)
      egress-groupd   10.74.235.43   worker0.ocp4.klakhwar.com   10.74.235.43
      egress-groupk   10.78.235.43                                
      egressdec       10.74.235.42                                             ---> Same IP (10.74.235.42)
      egressnov       10.74.235.46   worker0.ocp4.klakhwar.com   10.74.235.47 

      Restarted OVN-controller pod duplicate EgressIP got assigned to nodes:

       

      oc delete po ovnkube-control-plane-c889ffcfd-p2mnz
      pod "ovnkube-control-plane-c889ffcfd-p2mnz" deleted
       
      oc get po
      NAME                                    READY   STATUS    RESTARTS   AGE
      ovnkube-control-plane-c889ffcfd-2mvsg   2/2     Running   0          4s
      ovnkube-control-plane-c889ffcfd-jp9lg   2/2     Running   0          38s
      ovnkube-node-4j7p2                      8/8     Running   0          3d8h
      ovnkube-node-7z56g                      8/8     Running   0          65s
      ovnkube-node-9cp5n                      8/8     Running   0          3d8h
      ovnkube-node-cgkrs                      8/8     Running   0          3d8h
      ovnkube-node-p68lf                      8/8     Running   0          3d8h
      
      oc get eip
      NAME            EGRESSIPS      ASSIGNED NODE               ASSIGNED EGRESSIPS
      egress-group1   10.74.235.42   master1.ocp4.klakhwar.com   10.74.235.42
      egress-groupd   10.74.235.43   worker0.ocp4.klakhwar.com   10.74.235.43
      egress-groupk   10.78.235.43                               
      egressdec       10.74.235.42   master0.ocp4.klakhwar.com   10.74.235.42 

       

       

      Steps to Reproduce:

      As mentioned above.

      Actual results: Duplicate EgressIP got assigned to node.

      Expected results: Duplicate EgressIP should not get assigned.

      Additional info:

      Please fill in the following template while reporting a bug and provide as much relevant information as possible. Doing so will give us the best chance to find a prompt resolution.

      Affected Platforms:

      Is it an   Customer Issue.

      1. internal CI failure
      2. customer issue / SD 
      3. internal RedHat testing failure

      If it is an internal RedHat testing failure:

      • Please share a kubeconfig or creds to a live cluster for the assignee to debug/troubleshoot along with reproducer steps (specially if it's a telco use case like ICNI, secondary bridges or BM+kubevirt).

      If it is a CI failure: 

      • Did it happen in different CI lanes? If so please provide links to multiple failures with the same error instance
      • Did it happen in both sdn and ovn jobs? If so please provide links to multiple failures with the same error instance
      • Did it happen in other platforms (e.g. aws, azure, gcp, baremetal etc) ? If so please provide links to multiple failures with the same error instance
      • When did the failure start happening? Please provide the UTC timestamp of the networking outage window from a sample failure run
      • If it's a connectivity issue,
      • What is the srcNode, srcIP and srcNamespace and srcPodName?
      • What is the dstNode, dstIP and dstNamespace and dstPodName?
      • What is the traffic path? (examples: pod2pod? pod2external?, pod2svc? pod2Node? etc)

      If it is a customer / SD issue:

      • Provide enough information in the bug description that Engineering doesn’t need to read the entire case history.
      • Don’t presume that Engineering has access to Salesforce.
      • Do presume that Engineering will access attachments through supportshell.
      • Describe what each relevant attachment is intended to demonstrate (failed pods, log errors, OVS issues, etc).
      • Referring to the attached must-gather, sosreport or other attachment, please provide the following details:
        • If the issue is in a customer namespace then provide a namespace inspect.
        • If it is a connectivity issue:
          • What is the srcNode, srcNamespace, srcPodName and srcPodIP?
          • What is the dstNode, dstNamespace, dstPodName and dstPodIP?
          • What is the traffic path? (examples: pod2pod? pod2external?, pod2svc? pod2Node? etc)
          • Please provide the UTC timestamp networking outage window from must-gather
          • Please provide tcpdump pcaps taken during the outage filtered based on the above provided src/dst IPs
        • If it is not a connectivity issue:
          • Describe the steps taken so far to analyze the logs from networking components (cluster-network-operator, OVNK, SDN, openvswitch, ovs-configure etc) and the actual component where the issue was seen based on the attached must-gather. Please attach snippets of relevant logs around the window when problem has happened if any.
      • When showing the results from commands, include the entire command in the output.  
      • For OCPBUGS in which the issue has been identified, label with “sbr-triaged”
      • For OCPBUGS in which the issue has not been identified and needs Engineering help for root cause, label with “sbr-untriaged”
      • Do not set the priority, that is owned by Engineering and will be set when the bug is evaluated
      • Note: bugs that do not meet these minimum standards will be closed with label “SDN-Jira-template”
      • For guidance on using this template please see
        OCPBUGS Template Training for Networking  components

              sdn-team-bot sdn-team bot
              rhn-support-dtorne Devdatta Torne
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              Jean Chen Jean Chen
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                Created:
                Updated: