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  1. OpenShift Virtualization
  2. CNV-41958

HCP KubeVirt VM Enhanced Topology Spread

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    • OCPSTRAT-1390 - HCP KubeVirt VM Enhanced Topology Spread
    • OCPSTRAT-1390HCP KubeVirt VM Enhanced Topology Spread
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      Feature Overview (aka. Goal Summary)  

      Today VMs for a single nodepool can “clump” together on a single node after the infra cluster is updated. This is due to live migration shuffling around the VMs in ways that can result in VMs from the same nodepool being placed next to each other.

       

      Through a combination of TopologySpreadConstraints and the De-Scheduler, it should be possible to continually redistributed VMs in a nodepool (via live migration) when clumping occurs. This will provide stronger HA guarantees for nodepools

       

      Goals (aka. expected user outcomes)

      VMs within a nodepool should re-distribute via live migration in order to best satisfy topology spread constraints.

            stirabos Simone Tiraboschi
            rhn-engineering-dvossel David Vossel
            Debarati Basu-Nag Debarati Basu-Nag
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              Created:
              Updated: