High memory and storage utilization by prometheus directory

Solution Verified - Updated -

Issue

  • High memory and storage utilization by prometheus.
  • The prometheus container is in ContainersNotReady state and monitoring operator is degraded:
$ oc get po -n openshift-monitoring 

prometheus-k8s-0                             5/6    Running  116       9d
prometheus-k8s-1                             6/6    Running  5         72d

$ oc get co -n openshift-monitoring 

NAME                                      VERSION  AVAILABLE  PROGRESSING  DEGRADED  SINCE
monitoring                                4.10.60  False      True         True      34s

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4.10

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