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https://issues.apache.org/jira/browse/FLINK-3670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15289619#comment-15289619
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Eron Wright commented on FLINK-3670:
-------------------------------------
After some design discussion, the keytab approach will be used as outlined in
FLINK-3929.
> Kerberos: Improving long-running streaming jobs
> -----------------------------------------------
>
> Key: FLINK-3670
> URL: https://issues.apache.org/jira/browse/FLINK-3670
> Project: Flink
> Issue Type: Improvement
> Components: Command-line client, Local Runtime
> Reporter: Maximilian Michels
> Assignee: Eron Wright
>
> We have seen in the past, that Hadoop's delegation tokens are subject to a
> number of subtle token renewal bugs. In addition, they have a maximum life
> time that can be worked around but is very inconvenient for the user.
> As per [mailing list
> discussion|http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/Kerberos-for-Streaming-amp-Kafka-td10906.html],
> a way to work around the maximum life time of DelegationTokens would be to
> pass the Kerberos principal and key tab upon job submission. A daemon could
> then periodically renew the ticket.
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