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https://issues.apache.org/jira/browse/HADOOP-16298?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pankaj updated HADOOP-16298:
----------------------------
Attachment: (was: Proposal for changes to UGI for managing_renewing
externally managed delegation tokens.pdf)
> Manage/Renew delegation tokens for externally scheduled jobs
> ------------------------------------------------------------
>
> Key: HADOOP-16298
> URL: https://issues.apache.org/jira/browse/HADOOP-16298
> Project: Hadoop Common
> Issue Type: Improvement
> Components: common
> Affects Versions: 2.7.3, 2.9.0, 3.2.0, 3.3.0
> Reporter: Pankaj
> Priority: Major
> Fix For: 2.7.3, 2.9.0, 3.2.0, 3.3.0
>
>
> * Presently when jobs are run in the Hadoop ecosystem, the implicit
> assumption is that YARN will be used as a scheduling agent with access to
> appropriate keytabs for renewal of kerberos tickets and delegation tokens.
> * Jobs that interact with kerberized hadoop services such as hbase/hive/hdfs
> and use an external scheduler such as Kubernetes, typically do not have
> access to keytabs. In such cases, delegation tokens are a logical choice for
> interacting with a kerberized cluster. These tokens are issued based on some
> external auth mechanism (such as Kube LDAP authentication).
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