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68 lines
1.7 KiB
Plaintext
68 lines
1.7 KiB
Plaintext
// Automatically generated by 'runbook-conversion.sh'. Do not edit.
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// Module included in the following assemblies:
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//
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// * virt/logging_events_monitoring/virt-runbooks.adoc
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:_content-type: REFERENCE
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[id="virt-runbook-virtcontrollerdown_{context}"]
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= VirtControllerDown
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[discrete]
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[id="meaning-virtcontrollerdown_{context}"]
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== Meaning
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No running `virt-controller` pod has been detected for 5 minutes.
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[discrete]
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[id="impact-virtcontrollerdown_{context}"]
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== Impact
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Any actions related to virtual machine (VM) lifecycle management fail.
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This notably includes launching a new virtual machine instance (VMI)
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or shutting down an existing VMI.
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[discrete]
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[id="diagnosis-virtcontrollerdown_{context}"]
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== Diagnosis
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. Set the `NAMESPACE` environment variable:
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+
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[source,terminal]
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----
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$ export NAMESPACE="$(oc get kubevirt -A \
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-o custom-columns="":.metadata.namespace)"
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----
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. Check the status of the `virt-controller` deployment:
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+
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[source,terminal]
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----
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$ oc get deployment -n $NAMESPACE virt-controller -o yaml
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----
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. Review the logs of the `virt-controller` pod:
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+
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[source,terminal]
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----
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$ oc get logs <virt-controller>
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----
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[discrete]
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[id="mitigation-virtcontrollerdown_{context}"]
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== Mitigation
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This alert can have a variety of causes, including the following:
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* Node resource exhaustion
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* Not enough memory on the cluster
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* Nodes are down
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* The API server is overloaded. For example, the scheduler might be
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under a heavy load and therefore not completely available.
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* Networking issues
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Identify the root cause and fix it, if possible.
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If you cannot resolve the issue, log in to the
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link:https://access.redhat.com[Customer Portal] and open a support case,
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attaching the artifacts gathered during the diagnosis procedure.
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