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Type: Bug
Resolution: Not a Bug
Priority: Major
Fix Version/s: None
Affects Version/s: 4.13.z, 4.12.z, 4.14.z
Component/s: Machine Config Operator
Labels:
- mco-triaged

Activity Type:
Quality / Stability / Reliability
Blocked:
False
Blocked Reason:

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Severity:
None
Regression:
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Target Backport Versions:
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Target Version:
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Release Blocker:
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Sprint:
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SFDC Cases Counter:
SFDC Cases Open:
SFDC Cases Links:

Release Note Status:
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Release Note Type:
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Release Note Text:
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Escape Reason:
None
Escape Impact:
None
Corrective Measures:
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SDLC stage when should've been found:
None

Description of problem:

    PodDisruptionBudget (PDB) causes Machine-Config-Operator (MCO) to be degraded during OCP4 upgrade

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

How reproducible:

Steps to Reproduce:

    1. Upgrade cluster where multiple PDBs exists
    2. During pod eviction , multiple pods will keep on running and mcp will be degraded with errors  :    Cannot evict pod as it would violate the pod's disruption budget.     
     3. We need to manually delete the pod to progress with upgrade , it doesn't matter if pods are running or stuck in terminating state.

Actual results:

    OCP4 upgrade is failing due to machine-config-operator degraded.

Expected results:

    OCP4 upgrade should complete without any errors

Additional info:

Assignee:: Yu Qi Zhang

Reporter:: Vishvranjan Mishra

Need Info From:: None

Contributors:: None

QA Contact:: Sergio Regidor de la Rosa

Doc Contact:: None

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Created:: 2024/08/23 9:33 AM

Updated:: 2025/07/21 11:30 PM

Resolved:: 2024/12/10 10:04 PM