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  1. OpenShift Bugs
  2. OCPBUGS-996

Control Plane Machine Set Operator OnDelete update should cause an error when more than one machine is ready in an index


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    • CLOUD Sprint 225, CLOUD Sprint 226, CLOUD Sprint 227, CLOUD Sprint 228, CLOUD Sprint 229, CLOUD Sprint 230
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      Description of problem:

      when using the OnDelete update method of the ControlPlaneMachineSet, it should not be possible to have multiple machines in the Running phase in the same machine index. eg, if machine-1 is in Running phase, we should not have a machine-replacement-1 also in the Running phase.

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

      4.12 / main branch

      How reproducible:

      unsure, this is currently not tested in the code and is difficult to produce

      Steps to Reproduce:

      1. setup a cluster with CPMS in OnDelete update mode
      2. rename one of the master machines to have the same index as another, or manually create a machine to match. this step might be difficult to reproduce.
      3. observe logs from CPMS operator

      Actual results:

      no errors are emitted about the extra machine, although perhaps others are. operator does not degrade.

      Expected results:

      an error should be produced and the operator should go degraded

      Additional info:

      this bug is slightly predictive, we have not observed this condition but have detected a gap in the code that might make it possible.

            ddonati@redhat.com Damiano Donati
            mimccune@redhat.com Michael McCune
            Zhaohua Sun Zhaohua Sun
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