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  1. OpenShift Bugs
  2. OCPBUGS-53259

HostedCluster registry and release providers are recreated on every reconcile

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major Major
    • 4.20.0
    • 4.16, 4.17, 4.18, 4.19
    • HyperShift
    • Quality / Stability / Reliability
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      Before this update, hosted control planes did not correctly persist registry metadata and release image provider caches in the `HostedCluster` resource. As a consequence, caches for release and image metadata reset on `HostedCluster` controller reconciliation. This release introduces a common registry provider which is used by the `HostedCluster` resource to fix cache loss. This reduces the number of image pulls and network traffic, thus improving overall performance.
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      Before this update, hosted control planes did not correctly persist registry metadata and release image provider caches in the `HostedCluster` resource. As a consequence, caches for release and image metadata reset on `HostedCluster` controller reconciliation. This release introduces a common registry provider which is used by the `HostedCluster` resource to fix cache loss. This reduces the number of image pulls and network traffic, thus improving overall performance.
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      Description of problem:

       

      As described in Hypershift issues at scale - OCPBUGS-52256, the memory usage of hypershift quickly grows causing issues. This is caused in part by the the registry and release providers being recreated on every reconcile call. This results in the cached images never being used and new caches being created. This issue was introduced in the fix for OCBUGS-29110.
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              rcradick Ryan Cradick
              rcradick Ryan Cradick
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              Ke Wang Ke Wang
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