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https://issues.apache.org/jira/browse/SPARK-39965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-39965:
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Parent: SPARK-41515
Issue Type: Sub-task (was: Bug)
> Skip PVC cleanup when driver doesn't own PVCs
> ---------------------------------------------
>
> Key: SPARK-39965
> URL: https://issues.apache.org/jira/browse/SPARK-39965
> Project: Spark
> Issue Type: Sub-task
> Components: Kubernetes
> Affects Versions: 3.3.0
> Reporter: Pralabh Kumar
> Assignee: Pralabh Kumar
> Priority: Trivial
> Fix For: 3.3.1, 3.2.3, 3.4.0
>
>
> From Spark32 . as a part of [https://github.com/apache/spark/pull/32288] ,
> functionality is added to delete PVC if the Spark driver died.
> [https://github.com/apache/spark/blob/786a70e710369b195d7c117b33fe9983044014d6/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/scheduler/cluster/k8s/KubernetesClusterSchedulerBackend.scala#L144]
>
> However there are cases , where spark on K8s doesn't use PVC and use host
> path for storage.
> [https://spark.apache.org/docs/latest/running-on-kubernetes.html#using-kubernetes-volumes]
>
> Now in those cases ,
> * it request to delete PVC (which is not required) .
> * It also tries to delete in the case where driver doesn't own the PV (or
> spark.kubernetes.driver.ownPersistentVolumeClaim is false)
> * Moreover in the cluster , where Spark user doesn't have access to list or
> delete PVC , it throws exception .
>
> io.fabric8.kubernetes.client.KubernetesClientException: Failure executing:
> GET at:
> [https://kubernetes.default.svc/api/v1/namespaces/<>/persistentvolumeclaims?labelSelector=spark-app-selector%3Dspark-332bd09284b3442f8a6a214fabcd6ab1|https://kubernetes.default.svc/api/v1/namespaces/dpi-dev/persistentvolumeclaims?labelSelector=spark-app-selector%3Dspark-332bd09284b3442f8a6a214fabcd6ab1].
> Message: Forbidden!Configured service account doesn't have access. Service
> account may have been revoked. persistentvolumeclaims is forbidden: User
> "system:serviceaccount:dpi-dev:spark" cannot list resource
> "persistentvolumeclaims" in API group "" in the namespace "<>".
>
> *Solution*
> Ideally there should be configuration
> spark.kubernetes.driver.pvc.deleteOnTermination or use
> spark.kubernetes.driver.ownPersistentVolumeClaim which should be checked
> before calling to delete PVC. If user have not set up PV or if the driver
> doesn't own then there is no need to call the api and delete PVC .
>
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