Pankaj created HADOOP-16298:
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Summary: 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: 3.2.0, 2.9.0, 2.7.3, 3.3.0
Reporter: Pankaj
Fix For: 3.3.0, 3.2.0, 2.9.0, 2.7.3
Attachments: Proposal for changes to UGI for managing_renewing
externally managed delegation tokens.pdf
* 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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