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  1. OpenShift Bugs
  2. OCPBUGS-24416

MachineConfigNode cannot be synced with node creation/deletion

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    • MCO Sprint 246, MCO Sprint 247, MCO Sprint 248
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      * Previously, when a new node was added to or removed from a cluster, the `MachineConfigNode` (MCN) objects did not react. As a result, extraneous MCN objects existed. With this release, the Machine Config Operator removes and adds MCN objects as appropriate when nodes are added or removed. (link:https://issues.redhat.com/browse/OCPBUGS-24416[*OCPBUGS-24416*])
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      * Previously, when a new node was added to or removed from a cluster, the `MachineConfigNode` (MCN) objects did not react. As a result, extraneous MCN objects existed. With this release, the Machine Config Operator removes and adds MCN objects as appropriate when nodes are added or removed. (link: https://issues.redhat.com/browse/OCPBUGS-24416 [* OCPBUGS-24416 *])
    • Bug Fix
    • Done

      unknown machine config node can be listed, the name is not in current cluster, in my cluster, there are 6 nodes, but I can see 10 machine config nodes

      // current node
$ oc get node
NAME                                        STATUS   ROLES                  AGE     VERSION
ip-10-0-12-209.us-east-2.compute.internal   Ready    worker                 3h48m   v1.28.3+59b90bd
ip-10-0-23-177.us-east-2.compute.internal   Ready    control-plane,master   3h54m   v1.28.3+59b90bd
ip-10-0-32-216.us-east-2.compute.internal   Ready    control-plane,master   3h54m   v1.28.3+59b90bd
ip-10-0-42-207.us-east-2.compute.internal   Ready    worker                 53m     v1.28.3+59b90bd
ip-10-0-71-71.us-east-2.compute.internal    Ready    worker                 3h46m   v1.28.3+59b90bd
ip-10-0-81-190.us-east-2.compute.internal   Ready    control-plane,master   3h54m   v1.28.3+59b90bd

// current mcn
$ oc get machineconfignode
NAME                                        UPDATED   UPDATEPREPARED   UPDATEEXECUTED   UPDATEPOSTACTIONCOMPLETE   UPDATECOMPLETE   RESUMED
ip-10-0-12-209.us-east-2.compute.internal   True      False            False            False                      False            False
ip-10-0-23-177.us-east-2.compute.internal   True      False            False            False                      False            False
ip-10-0-32-216.us-east-2.compute.internal   True      False            False            False                      False            False
ip-10-0-42-207.us-east-2.compute.internal   True      False            False            False                      False            False
ip-10-0-53-5.us-east-2.compute.internal     True      False            False            False                      False            False
ip-10-0-56-84.us-east-2.compute.internal    True      False            False            False                      False            False
ip-10-0-58-210.us-east-2.compute.internal   True      False            False            False                      False            False
ip-10-0-58-99.us-east-2.compute.internal    False     True             True             Unknown                    False            False
ip-10-0-71-71.us-east-2.compute.internal    True      False            False            False                      False            False
ip-10-0-81-190.us-east-2.compute.internal   True      False            False            False                      False            False

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

      4.15.0-0.nightly-2023-12-04-162702

      How reproducible:

      Consistently

      Steps to Reproduce:

      1. setup cluster with 4.15.0-0.nightly-2023-12-04-162702 on aws
2. enable featureSet: TechPreviewNoUpgrade
3. apply file based mc few times.
4. check node list
5. check machine config node list

      Actual results:

      there are some unknown machine config nodes found

      Expected results:

      machine config node number should be same as cluster node number

      Additional info:

      must-gather: https://drive.google.com/file/d/1-VTismwXXZ9sYMHi8hDL7vhwzjuMn92n/view?usp=drive_link

              cdoern@redhat.com Charles Doern
              rhn-support-rioliu Rio Liu
              Rio Liu Rio Liu
              Shauna Diaz Shauna Diaz
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                Created:
                Updated:
                Resolved: