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  1. OpenShift Bugs
  2. OCPBUGS-10258

HC installations blocked because MC can't scale up workers

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      Description of problem:

      MC can't scale up workers due to aws hardware limitation, this blocks the installation of new hosted clusters.

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

      Seen 4.12.5 / affects 4.12.z

      How reproducible:

      Whenever a MC runs into AWS regional hardware limitations

      Steps to Reproduce:

      1.
2.
3.

      Actual results:

      CLOUDTRAIL:
RunInstances: errorMessage": "We currently do not have sufficient m6a.4xlarge capacity in the Availability Zone you requested (us-east-2a). Our system will be working on provisioning additional capacity. You can currently get m6a.4xlarge capacity by not specifying an Availability Zone in your request or choosing us-east-2b, us-east-2c.",

Worker nodes can't be scaled up. 
In this case, this resulted in only 24 out of 80 scaletest clusters able to install

      Expected results:

      Worker nodes can scale up (maybe using a different instance type), the installation of HCs isn't blocked

      Additional info:

      AWS logs attached

Example MC: hs-mc-9b6tgtb70

              agarcial@redhat.com Alberto Garcia Lamela
              cbusse.openshift Claudio Busse
              None
              None
              Jie Zhao Jie Zhao
              None
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                Created:
                Updated:
                Resolved: