A Prometheus instance is continuosly crashing on OpenShift 4

Solution Verified - Updated -

Issue

  • A Prometheus instance is continuously crashing with:
2020-11-10T11:54:50.117158649Z panic: series ID exceeds 5 bytes
  • There're critical alert notifications as KubeletDown, KubeControllerManagerDown, KubeSchedulerDown, KubeAPIDown etc.
  • The Monitoring - Alerting section on the OpenShift WebConsole shows Error Loading: Bad Gateway error

Environment

  • Red Hat OpenShift Container Platform (OCP) 4.1-4.5

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