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61 lines
1.8 KiB
Plaintext
61 lines
1.8 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
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:_mod-docs-content-type: PROCEDURE
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[id="migration-dvm-error-node-selectors_{context}"]
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= Direct volume migration does not complete
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If direct volume migration does not complete, the target cluster might not have the same `node-selector` annotations as the source cluster.
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{mtc-first} migrates namespaces with all annotations to preserve security context constraints and scheduling requirements. During direct volume migration, {mtc-short} creates Rsync transfer pods on the target cluster in the namespaces that were migrated from the source cluster. If a target cluster namespace does not have the same annotations as the source cluster namespace, the Rsync transfer pods cannot be scheduled. The Rsync pods remain in a `Pending` state.
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You can identify and fix this issue by performing the following procedure.
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.Procedure
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. Check the status of the `MigMigration` CR:
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+
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[source,terminal]
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----
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$ oc describe migmigration <pod> -n openshift-migration
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----
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The output includes the following status message:
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.Example output
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[source,terminal]
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----
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Some or all transfer pods are not running for more than 10 mins on destination cluster
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----
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. On the source cluster, obtain the details of a migrated namespace:
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+
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[source,terminal]
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----
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$ oc get namespace <namespace> -o yaml <1>
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----
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<1> Specify the migrated namespace.
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. On the target cluster, edit the migrated namespace:
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[source,terminal]
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----
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$ oc edit namespace <namespace>
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----
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. Add the missing `openshift.io/node-selector` annotations to the migrated namespace as in the following example:
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[source,yaml]
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----
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apiVersion: v1
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kind: Namespace
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metadata:
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annotations:
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openshift.io/node-selector: "region=east"
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...
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----
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. Run the migration plan again.
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