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  1. OpenShift GitOps
  2. GITOPS-4650

High CPU utilization by ArgoCD application post RHOCP 4.14 upgrade

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    • Customer Escalated

      Description of problem:

      1. High CPU and Memory usage on node `ocp-test-infratest-003`
      
      2. ArgoCD process is consuming high amount of CPU
      ~~~
      $ ssh node/ocp-test-infratest-003
      $ top
         PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
       554553 1000780+  20   0   11.8g   4.1g  34104 S 629.9  13.0  51642:35 argocd-application
      ~~~
      
      3. There are 2 ArgoCD instances on the cluster(2 custom):
      --> developer-gitops (400+ Applications, 67 Managed Namespaces)
      --> platform-gitops (102 Applications)
      
      4. This issue is occurring since cu has upgraded the cluster to 4.14
      
      ---------------------------------------------------------------------------
      
      1. DeploymentConfig has been deprecated in RHOCP 4.14
      2. Cu is using DeploymentConfig, hence getting 1000+  alerts of `apps.openshift.io/v1 DeploymentConfig is deprecated in v4.14+`
      
      ---------------------------------------------------------------------------
      
      Customer is suspecting that the high CPU consumption on node is caused due to these alerts.
      However, the other possibility would be that the ArgoCD application might causing the high CPU utilization as shown above.
      
      ---------------------------------------------------------------------------
      The concern customer has is the resource consumption was in limit before they upgraded the cluster to 4.14.
      

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

          RHOCP version 4.14

      How reproducible:

          

      Steps to Reproduce:

          1.NA
          2.
          3.
          

      Actual results:

          NA

      Expected results:

          NA

      Additional info:

          

              isequeir@redhat.com Ishita Sequeira
              rhn-support-harspati Harshada Patil
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                Created:
                Updated: