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Posted to issues@spark.apache.org by "Dongjoon Hyun (Jira)" <ji...@apache.org> on 2020/03/16 22:53:04 UTC

[jira] [Updated] (SPARK-28905) PVs mounted into Spark may not be writable by Spark

     [ https://issues.apache.org/jira/browse/SPARK-28905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dongjoon Hyun updated SPARK-28905:
----------------------------------
    Affects Version/s:     (was: 3.0.0)
                       3.1.0

> PVs mounted into Spark may not be writable by Spark
> ---------------------------------------------------
>
>                 Key: SPARK-28905
>                 URL: https://issues.apache.org/jira/browse/SPARK-28905
>             Project: Spark
>          Issue Type: Improvement
>          Components: Kubernetes
>    Affects Versions: 3.1.0
>            Reporter: Holden Karau
>            Assignee: Holden Karau
>            Priority: Minor
>
> Right now, for Spark to have write access to the PVs we provide it, they need to be created with UID 185. This _may_ be a feature, but if we wanted to make this more flexible we could set a FsGroup in our security context when setting up the volumes. This would give Spark access provided the PV supports fsgroup (which on minikube does not appear to be the case - [https://github.com/kubernetes/minikube/issues/1990] )
>  
> If we did want to do this we could add the securitygroup in MountVolumesFeatureStep but I don't know if we want to do this or if the current behaviour is desired.
> I ran into this while getting the integration tests to work w/minikube 1.3.1 on OSX. See https://issues.apache.org/jira/browse/SPARK-28904 for details.
>  
> cc [~ifilonenko] for thoughts



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