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  1. OpenShift Bugs
  2. OCPBUGS-62895

CPU spikes after enabling ANP

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    • CORENET Sprint 283, CORENET Sprint 284
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      Description of problem:

      Whenever the ANP's are created, there is an observation in cpu utilization spike every 15 min. After removal of the ANP the cpu spikes observes a instant drop in cpu utilization.

      Version-Release number of selected component (if applicable):

      How reproducible:

      Always

      Steps to Reproduce:

       

      1. Create 1 BANP
      2. Create 60-70 projects with ANP.
      3. And check the metrics:
      sum(rate(container_cpu_usage_seconds_total{id="/",instance=~"($instance_master_nodes_without_port).*",tenant_id=~"($tenant).*"}[1m]))
      

       

      Actual results:

      There is cpu spike observed.

      Expected results:

      Stable utilization of cpu.

      Affected Platforms:

      Is it an

      1. customer issue / SD

        1. master node cpu usage.png
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          Liquan Cui
        2. kube-apiserver cpu usage.png
          654 kB
          Liquan Cui

              sseethar Surya Seetharaman
              rhn-support-vdurgam Vedant Durgam
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              Liquan Cui Liquan Cui
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                Created:
                Updated: