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65 lines
2.4 KiB
Plaintext
65 lines
2.4 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * migrating_from_ocp_3_to_4/troubleshooting-3-4.adoc
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// * migration_toolkit_for_containers/troubleshooting-mtc.adoc
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:_mod-docs-content-type: PROCEDURE
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[id="migration-using-must-gather_{context}"]
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= Using the must-gather tool
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You can collect logs, metrics, and information about {local-product} custom resources by using the `must-gather` tool.
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The `must-gather` data must be attached to all customer cases.
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You can collect data for a one-hour or a 24-hour period and view the data with the Prometheus console.
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.Prerequisites
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* You must be logged in to the {product-title} cluster as a user with the `cluster-admin` role.
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* You must have the OpenShift CLI (`oc`) installed.
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.Procedure
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. Navigate to the directory where you want to store the `must-gather` data.
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. Run the `oc adm must-gather` command for one of the following data collection options:
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ifdef::troubleshooting-3-4[]
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* To collect data for the past hour, run the following command:
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+
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[source,terminal]
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----
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$ oc adm must-gather --image=registry.redhat.io/rhmtc/openshift-migration-must-gather-rhel8:v1.7
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----
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This command saves the data as the `must-gather/must-gather.tar.gz` file. You can upload this file to a support case on the link:https://access.redhat.com/[Red Hat Customer Portal].
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* To collect data for the past 24 hours, run the following command:
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[source,terminal]
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----
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$ oc adm must-gather --image=registry.redhat.io/rhmtc/openshift-migration-must-gather-rhel8:v1.7 -- /usr/bin/gather_metrics_dump
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----
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This operation can take a long time. This command saves the data as the `must-gather/metrics/prom_data.tar.gz` file.
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endif::[]
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ifdef::troubleshooting-mtc[]
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* To collect data for the past 24 hours, run the following command:
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+
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[source,terminal]
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----
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$ oc adm must-gather --image=registry.redhat.io/rhmtc/openshift-migration-must-gather-rhel8:v1.8
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----
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+
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This command saves the data as the `must-gather/must-gather.tar.gz` file. You can upload this file to a support case on the link:https://access.redhat.com/[Red Hat Customer Portal].
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* To collect data for the past 24 hours, run the following command:
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+
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[source,terminal]
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----
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$ oc adm must-gather --image=registry.redhat.io/rhmtc/openshift-migration-must-gather-rhel8:v1.8 -- /usr/bin/gather_metrics_dump
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----
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This operation can take a long time. This command saves the data as the `must-gather/metrics/prom_data.tar.gz` file.
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endif::[]
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