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https://issues.apache.org/jira/browse/SPARK-25355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17530046#comment-17530046
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Shrikant commented on SPARK-25355:
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[~pedro.rossi] [~dongjoon] When we use the proxy-user parameter, access to
Kerberized HDFS is not working for Spark on Kubernetes. It's because the proxy
user doesn't have access to any delegation tokens. Was this functionality
tested for Spark on Kubernetes when this bug was fixed?
> Support --proxy-user for Spark on K8s
> -------------------------------------
>
> Key: SPARK-25355
> URL: https://issues.apache.org/jira/browse/SPARK-25355
> Project: Spark
> Issue Type: Sub-task
> Components: Kubernetes, Spark Core
> Affects Versions: 3.1.0
> Reporter: Stavros Kontopoulos
> Assignee: Pedro Rossi
> Priority: Major
> Fix For: 3.1.0
>
>
> SPARK-23257 adds kerberized hdfs support for Spark on K8s. A major addition
> needed is the support for proxy user. A proxy user is impersonated by a
> superuser who executes operations on behalf of the proxy user. More on this:
> [https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/Superusers.html]
> [https://github.com/spark-notebook/spark-notebook/blob/master/docs/proxyuser_impersonation.md]
> This has been implemented for Yarn upstream and Spark on Mesos here:
> [https://github.com/mesosphere/spark/pull/26]
> [~ifilonenko] creating this issue according to our discussion.
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