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  1. Product Technical Learning
  2. PTL-10601

DO480 Lab environment becomes unreliable after reboot

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Critical Critical
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    • DO480 - ACM2.4-en-5-20221130
    • DO480
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      The issue requires a complete reset and run rhacs-install script and re-install ACS which takes a long time. In a normal delivery we would be by the end of the delivery and we would be short of time.

      Show
      The issue requires a complete reset and run rhacs-install script and re-install ACS which takes a long time. In a normal delivery we would be by the end of the delivery and we would be short of time.
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    • VT
    • en-US (English)

      Please fill in the following information:

      URL: https://rol.redhat.com/rol/app/courses/do480-2.4/pages/ch08s04
      Reporter RHNID: rhn-gls-rtaniguchi
      Section title: Guided Exercise: Installing and Configuring RHACS
      Language: N/A                                                                 

      Issue description

      After configuring ACS installation GE (chapter 8) and using the auto shutdown on student's classroom environment, most students were running into kernel core dump and OOM errors on the managed cluster. 

      Steps to reproduce:

      Run lab start rhacs-install.

      Install ACS as per instructions from GE: Installing and Configuring RHACS

      Leave machine until auto shutdown.

      Restart it 

      Workaround:

      Reset the machines

       

      Expected result:

      No core dumps or OOM errors.

        1. image-2023-11-15-15-05-23-875.png
          85 kB
          Carlos Arias

            gls-curriculum-ocp-core@redhat.com PTL - OCP Platform Team
            rhn-gls-rtaniguchi Ricardo Taniguchi
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              Created:
              Updated: