This is a clone of issue OCPBUGS-27818. The following is the description of the original issue:
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This is a clone of issue OCPBUGS-27817. The following is the description of the original issue:
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Description of problem:
When performing upgrades on ROSA HCP clusters with a large number of worker nodes (> 51), the Kube APIServer pods of the cluster use up memory exceeding the capacity of their nodes, resulting in OOMKills.
Version-Release number of selected component (if applicable):
4.14, 4.15
How reproducible:
always
Steps to Reproduce:
1. Create ROSA HCP Cluster
2. Add 100 workers to Cluster
3. Upgrade the cluster
Actual results:
Kube APIServer pods are OOMKilled
Expected results:
Upgrade completes successfully
Additional info:
- clones
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OCPBUGS-27818 High memory usage by Kube APIServer on HostedCluster upgrades
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- Closed
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- is blocked by
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- Closed
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- links to
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RHBA-2024:0837
OpenShift Container Platform 4.14.z bug fix update