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Chapter 5. Support removals


This section describes major changes in support for user-facing features in Red Hat OpenShift AI. For information about OpenShift AI supported software platforms, components, and dependencies, see the Red Hat OpenShift AI: Supported Configurations Knowledgebase article.

5.1. Deprecated

5.1.1. Upcoming deprecation of the embedded Kueue component

The embedded Kueue component that is managed as part of OpenShift AI will be deprecated beginning with OpenShift AI 2.24. After deprecation, Kueue will be provided by Red Hat OpenShift. The embedded Kueue component will not be supported in any Extended Update Support (EUS) release.

You can configure Kueue with one of the following management states in your DataScienceCluster custom resource:

  • Managed: The Operator manages the embedded Kueue component (default).
  • Unmanaged: The Operator integrates with an externally-installed Red Hat Build of Kueue Operator.
  • Removed: The Operator does not install Kueue, or it removes it if already installed.

To prepare for this deprecation, you can migrate from the embedded Kueue component to the external Red Hat Build of Kueue Operator. This configuration is supported in OpenShift AI 2.23 as a Technology Preview feature and requires OpenShift Container Platform 4.18 or later and the Red Hat build of Kueue 1.0.

To migrate, complete the following steps:

  1. Install the Red Hat build of Kueue Operator from OperatorHub.
  2. Edit your DataScienceCluster custom resource to set the spec.components.kueue.managementState field to Unmanaged.
  3. Verify that existing Kueue configurations (ClusterQueues and LocalQueues) are preserved after the migration.

For detailed instructions, see Migrating to the Red Hat build of Kueue Operator.

Note

This deprecation does not affect the Red Hat OpenShift AI API tiers.

5.1.2. Multi-model serving platform (ModelMesh)

Starting with OpenShift AI version 2.19, the multi-model serving platform based on ModelMesh is deprecated. You can continue to deploy models on the multi-model serving platform, but it is recommended that you migrate to the single-model serving platform.

For more information or for help on using the single-model serving platform, contact your account manager.

5.1.3. Deprecated Text Generation Inference Server (TGIS)

Starting with OpenShift AI version 2.19, the Text Generation Inference Server (TGIS) is deprecated. TGIS will continue to be supported through the OpenShift AI 2.16 EUS lifecycle. Caikit-TGIS and Caikit are not affected and will continue to be supported. The out-of-the-box serving runtime template will no longer be deployed. vLLM is recommended as a replacement runtime for TGIS.

5.1.4. Deprecated accelerator profiles

Accelerator profiles are now deprecated. To target specific worker nodes for workbenches or model serving workloads, use hardware profiles.

5.1.5. Deprecated OpenVINO Model Server (OVMS) plugin

The CUDA plugin for the OpenVINO Model Server (OVMS) is now deprecated and will no longer be available in future releases of OpenShift AI.

5.1.6. OpenShift AI dashboard user management moved from OdhDashboardConfig to Auth resource

Previously, cluster administrators used the groupsConfig option in the OdhDashboardConfig resource to manage the OpenShift groups (both administrators and non-administrators) that can access the OpenShift AI dashboard. Starting with OpenShift AI 2.17, this functionality has moved to the Auth resource. If you have workflows (such as GitOps workflows) that interact with OdhDashboardConfig, you must update them to reference the Auth resource instead.

Expand
Table 5.1. Updated configurations
Resource2.16 and earlier2.17 and later versions

apiVersion

opendatahub.io/v1alpha

services.platform.opendatahub.io/v1alpha1

kind

OdhDashboardConfig

Auth

name

odh-dashboard-config

auth

Admin groups

spec.groupsConfig.adminGroups

spec.adminGroups

User groups

spec.groupsConfig.allowedGroups

spec.allowedGroups

5.1.7. Deprecated cluster configuration parameters

When using the CodeFlare SDK to run distributed workloads in Red Hat OpenShift AI, the following parameters in the Ray cluster configuration are now deprecated and should be replaced with the new parameters as indicated.

Expand
Deprecated parameterReplaced by

head_cpus

head_cpu_requests, head_cpu_limits

head_memory

head_memory_requests, head_memory_limits

min_cpus

worker_cpu_requests

max_cpus

worker_cpu_limits

min_memory

worker_memory_requests

max_memory

worker_memory_limits

head_gpus

head_extended_resource_requests

num_gpus

worker_extended_resource_requests

You can also use the new extended_resource_mapping and overwrite_default_resource_mapping parameters, as appropriate. For more information about these new parameters, see the CodeFlare SDK documentation (external).

5.2. Removed functionality

5.2.1. Model registry ML Metadata (MLMD) server removal

Starting with OpenShift AI 2.23, the ML Metadata (MLMD) server has been removed from the model registry component. The model registry now interacts directly with the underlying database by using the existing model registry API and database schema. This change simplifies the overall architecture and ensures the long-term maintainability and efficiency of the model registry by transitioning from the ml-metadata component to direct database access within the model registry itself.

If you see the following error for your model registry deployment, this means that your database schema migration has failed:

error: error connecting to datastore: Dirty database version {version}. Fix and force version.
Copy to Clipboard Toggle word wrap

You can fix this issue by manually changing the database from a dirty state to 0 before traffic can be routed to the pod. Perform the following steps:

  1. Find the name of your model registry database pod as follows:

    kubectl get pods -n <your-namespace> | grep model-registry-db

    Replace <your-namespace> with the namespace where your model registry is deployed.

  2. Use kubectl exec to run the query on the model registry database pod as follows:

    kubectl exec -n <your-namespace> <your-db-pod-name> -c mysql -- mysql -u root -p"$MYSQL_ROOT_PASSWORD" -e "USE <your-db-name>; UPDATE schema_migrations SET dirty = 0;"

    Replace <your-namespace> with your model registry namespace and <your-db-pod-name> with the pod name that you found in the previous step. Replace <your-db-name> with your model registry database name.

    This will reset the dirty state in the database, allowing the model registry to start correctly.

5.2.2. Embedded subscription channel not used in some versions

For OpenShift AI 2.8 to 2.20 and 2.22 to 2.23, the embedded subscription channel is not used. You cannot select the embedded channel for a new installation of the Operator for those versions. For more information about subscription channels, see Installing the Red Hat OpenShift AI Operator.

5.2.3. Anaconda removal

Anaconda is an open source distribution of the Python and R programming languages. Starting with OpenShift AI version 2.18, Anaconda is no longer included in OpenShift AI, and Anaconda resources are no longer supported or managed by OpenShift AI.

If you previously installed Anaconda from OpenShift AI, a cluster administrator must complete the following steps from the OpenShift command-line interface to remove the Anaconda-related artifacts:

  1. Remove the secret that contains your Anaconda password:

    oc delete secret -n redhat-ods-applications anaconda-ce-access

  2. Remove the ConfigMap for the Anaconda validation cronjob:

    oc delete configmap -n redhat-ods-applications anaconda-ce-validation-result

  3. Remove the Anaconda image stream:

    oc delete imagestream -n redhat-ods-applications s2i-minimal-notebook-anaconda

  4. Remove the Anaconda job that validated the downloading of images:

    oc delete job -n redhat-ods-applications anaconda-ce-periodic-validator-job-custom-run

  5. Remove any pods related to Anaconda cronjob runs:

    oc get pods n redhat-ods-applications --no-headers=true | awk '/anaconda-ce-periodic-validator-job-custom-run*/'

5.2.4. Data science pipelines v1 support removed

Previously, data science pipelines in OpenShift AI were based on KubeFlow Pipelines v1. Starting with OpenShift AI 2.9, data science pipelines are based on KubeFlow Pipelines v2, which uses a different workflow engine. Data science pipelines 2.0 is enabled and deployed by default in OpenShift AI.

Starting with OpenShift AI 2.16, data science pipelines 1.0 resources are no longer supported or managed by OpenShift AI. It is no longer possible to deploy, view, or edit the details of pipelines that are based on data science pipelines 1.0 from either the dashboard or the KFP API server.

OpenShift AI does not automatically migrate existing data science pipelines 1.0 instances to 2.0. If you are upgrading to OpenShift AI 2.16 or later, you must manually migrate your existing data science pipelines 1.0 instances. For more information, see Migrating to data science pipelines 2.0.

Important

Data science pipelines 2.0 contains an installation of Argo Workflows. Red Hat does not support direct customer use of this instance of Argo Workflows. To install or upgrade to OpenShift AI 2.16 or later with data science pipelines 2.0, ensure that there is no existing installation of Argo Workflows on your cluster.

5.2.5. Pipeline logs for Python scripts running in Elyra pipelines are no longer stored in S3

Logs are no longer stored in S3-compatible storage for Python scripts which are running in Elyra pipelines. From OpenShift AI version 2.11, you can view these logs in the pipeline log viewer in the OpenShift AI dashboard.

Note

For this change to take effect, you must use the Elyra runtime images provided in workbench images at version 2024.1 or later.

If you have an older workbench image version, update the Version selection field to a compatible workbench image version, for example, 2024.1, as described in Updating a project workbench.

Updating your workbench image version will clear any existing runtime image selections for your pipeline. After you have updated your workbench version, open your workbench IDE and update the properties of your pipeline to select a runtime image.

5.2.6. Beta subscription channel no longer used

Starting with OpenShift AI 2.5, the beta subscription channel is no longer used. You can no longer select the beta channel for a new installation of the Operator. For more information about subscription channels, see Installing the Red Hat OpenShift AI Operator.

5.2.7. HabanaAI workbench image removal

Support for the HabanaAI 1.10 workbench image has been removed. New installations of OpenShift AI from version 2.14 do not include the HabanaAI workbench image. However, if you upgrade OpenShift AI from a previous version, the HabanaAI workbench image remains available, and existing HabanaAI workbench images continue to function.

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