Prometheus is firing some ThanosNoRuleEvaluations or ThanosQueryHighDNSFailures alerts

Solution Verified - Updated -

Issue

  • 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

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content