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  1. OpenShift Bugs
  2. OCPBUGS-33802

Hosted cluster creation burst results in clusters taking a long time to get scheduled

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Major Major
    • None
    • 4.16.0
    • HyperShift
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    • Important
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    • Rejected
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      Description of problem:

          Bursting hosted cluster creation on a management cluster with size tagging enabled results in some hosted clusters taking a very long time to be scheduled.

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

          4.16.0

      How reproducible:

          always

      Steps to Reproduce:

          1. Setup a management cluster with request serving architecture and size tagging enabled.
          2. Configure clustersizing configuration for concurrency of 5 clusters at a time over a 10 minute window.
          3. Create many clusters at the same time
          

      Actual results:

          Some of the created clusters take a very long time to be scheduled.

      Expected results:

          New clusters take at most the time required to bring up request serving nodes to be scheduled. 

      Additional info:

          The concurrency settings of the clustersizing configuration are getting applied to both existing clusters and new clusters coming in. They should not be applied to net new hostedclusters.

            skuznets@redhat.com Steve Kuznetsov
            cewong@redhat.com Cesar Wong
            Jie Zhao Jie Zhao
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              Created:
              Updated: