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Many Cluster Operators become unable to work after OCP upgrade if using taints feature Version information: $ oc version Client Version: 4.4.0-202004250654-2576e48 Server Version: 4.4.3 Kubernetes Version: v1.17.1 How reproducible: Always Steps to Reproduce: 1. Add taints one of worker nodes $ oc adm taint nodes worker5.example.com app=batch:NoSchedule 2. Upgrade OCP $ oc adm upgrade --to=<version> Actual results: Many Cluster Operator pods launched by daemonset disappeared after OCP upgrade. Expected results: OCP upgrade finishes with no problem.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: OpenShift Container Platform 4.6.8 security and bug fix update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2020:5259