Prometheus is firing some ThanosNoRuleEvaluations or ThanosQueryHighDNSFailures alerts

Solution Verified - Updated -


  • Alerts shown in the console about ThanosNoRuleEvaluations:
ThanosNoRuleEvaluations     2023-01-04T19:35:41.551016647Z  openshift-user-workload-monitoring  thanos-ruler                                        warning  Thanos Rule <IP>:9091 in openshift-user-workload-monitoring did not perform any rule evaluations in the past 10 minutes.
  • or ThanosQueryHighDNSFailures:
ThanosQueryHighDNSFailures  2023-01-26T11:21:01.172780466Z  openshift-monitoring  thanos-querier  warning  Thanos Query thanos-querier in openshift-monitoring have 11.11% of failing DNS queries for store end


  • Red Hat OpenShift Container Platform (RHOCP)
    • 4

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