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https://issues.apache.org/jira/browse/SPARK-25732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16649917#comment-16649917
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Marco Gaido commented on SPARK-25732:
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cc [~vanzin] [~tgraves] [~jerryshao] [~mridul]. Sorry for pinging you, may you
please provide your view on this? Do you see concerns/comments? Thanks.
> Allow specifying a keytab/principal for proxy user for token renewal
> ---------------------------------------------------------------------
>
> Key: SPARK-25732
> URL: https://issues.apache.org/jira/browse/SPARK-25732
> Project: Spark
> Issue Type: Improvement
> Components: Deploy
> Affects Versions: 2.4.0
> Reporter: Marco Gaido
> Priority: Major
>
> As of now, application submitted with proxy-user fail after 2 week due to the
> lack of token renewal. In order to enable it, we need the the
> keytab/principal of the impersonated user to be specified, in order to have
> them available for the token renewal.
> This JIRA proposes to add two parameters {{--proxy-user-principal}} and
> {{--proxy-user-keytab}}, and the last letting a keytab being specified also
> in a distributed FS, so that applications can be submitted by servers (eg.
> Livy, Zeppelin) without needing all users' principals being on that machine.
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