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[OSDOCS-18957]: Updating 4.21 rns to note feature support change #110173

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[OSDOCS-18957]: Updating 4.21 rns to note feature support change #110173

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6 changes: 5 additions & 1 deletion modules/rn-ocp-release-notes-notable-changes.adoc
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Expand Up @@ -26,4 +26,8 @@ With this update, MachineSets advertise the architecture of their nodes, which a

Dynamic Resource Allocation plugin is disabled in the NUMA-aware scheduler::
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With this update, the Dynamic Resource Allocation (DRA) is disabled so that the secondary scheduler, managed by `numaresources` operator, does not need to handle DRA resources. The Kubernetes project has recently enabled DRA by default, setting specific expectations on the scheduler-plugins project to support watching DRA resources. As a result, the OpenShift topology-aware scheduler (TAS) disables DRA plugin in its profile, and therefore ignores DRA-related custom resources (CRs) when making scheduling decisions.
With this update, the Dynamic Resource Allocation (DRA) is disabled so that the secondary scheduler, managed by `numaresources` operator, does not need to handle DRA resources. The Kubernetes project has recently enabled DRA by default, setting specific expectations on the scheduler-plugins project to support watching DRA resources. As a result, the OpenShift topology-aware scheduler (TAS) disables DRA plugin in its profile, and therefore ignores DRA-related custom resources (CRs) when making scheduling decisions.

Limiting the duration of events by setting the `eventTTLMinutes` property::
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In version 4.21 and later, you can limit the duration of Kubernetes events by setting the `eventTTLMinutes` property. Previously, that etcd feature was listed as a Technology Preview feature for 4.21. The feature is now generally available for version 4.21 and later.
5 changes: 0 additions & 5 deletions modules/rn-ocp-release-notes-technology-preview.adoc
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Expand Up @@ -625,11 +625,6 @@ In the following tables, features are marked with the following statuses:
|Technology Preview
|Technology Preview

|Managing etcd size by setting the `eventTTLMinutes` property
|Not available
|Not available
|Technology Preview

|Using {rh-rhacm} `PolicyGenerator` resources to manage {ztp} cluster policies
|General Availability
|General Availability
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