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Chapter 10. Collect Distributed Inference with llm-d diagnostic data from OpenShift

You can collect comprehensive diagnostic data from your Distributed Inference with llm-d deployment on OpenShift by running the oc adm must-gather command with the OpenShift AI must-gather image. You can gather cluster configuration, component status, logs, and metrics in a single diagnostic bundle to send to Red Hat Support for case analysis.

Prerequisites

  • You have installed the OpenShift CLI (oc).
  • You have logged in as a user with cluster-admin privileges.
  • The Distributed Inference with llm-d application and its dependencies are deployed on the cluster.

Procedure

  1. Run the must-gather command with the OpenShift AI must-gather image: 

    $ oc adm must-gather \
  --image=registry.redhat.io/rhoai/odh-must-gather-rhel9:v3.4 \
  -- "export COMPONENT=llm-d; /usr/bin/gather"

    The command creates a directory in the current path that contains the diagnostic bundle.

  2. Optional: To also collect Workload Variant Autoscaler (WVA) diagnostics, add the ENABLE_WVA=true environment variable: 

    $ oc adm must-gather \
  --image=registry.redhat.io/rhoai/odh-must-gather-rhel9:v3.4 \
  -- "export COMPONENT=llm-d; export ENABLE_WVA=true; /usr/bin/gather"

  3. Optional: To collect observability stack diagnostics, specify the monitoring namespace: 

    $ oc adm must-gather \
  --image=registry.redhat.io/rhoai/odh-must-gather-rhel9:v3.4 \
  -- "export COMPONENT=llm-d; export MONITORING_NAMESPACE=redhat-ods-monitoring; /usr/bin/gather"

  4. Locate the must-gather output directory: 

    $ ls -d must-gather.local.*

  5. Create a compressed archive of the diagnostic bundle: 

    $ tar -czf must-gather.tar.gz must-gather.local.*
  6. Attach the must-gather.tar.gz file to your Red Hat Support case.

Verification

  • Verify the diagnostic bundle contents: 

    $ tar -tzf must-gather.tar.gz | head -20

    The output should list diagnostic files organized by collection category, including cluster configuration, component status, logs, and metrics.

  • Extract and inspect the diagnostic bundle structure: 

    $ mkdir -p must-gather-output
$ tar -xzf must-gather.tar.gz -C must-gather-output
$ ls -R must-gather-output
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