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https://issues.apache.org/jira/browse/LENS-1514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Barun Kumar updated LENS-1514:
------------------------------
    Attachment: LENS-1514_1.patch

> Support HDFS delegation token authentication
> --------------------------------------------
>
>                 Key: LENS-1514
>                 URL: https://issues.apache.org/jira/browse/LENS-1514
>             Project: Apache Lens
>          Issue Type: Improvement
>          Components: client, server
>            Reporter: Barun Kumar
>            Assignee: Barun Kumar
>            Priority: Major
>         Attachments: LENS-1514_1.patch
>
>
> As part of LENS-1509, we have added Spnego authentication based on Kerberos 
> to lens. This will work in client-server mode. But this approach will cease 
> to work in a hadoop cluster in which user is using lens client in a mapred 
> job(such as oozie java action) since there will not be keytabs in the hadoop 
> cluster. The authentication in hadoop work on concept of delegation 
> token([https://blog.cloudera.com/blog/2017/12/hadoop-delegation-tokens-explained/).]
> Here we are introducing delegation token auth in lens. We are piggybacking on 
> HDFS to do authentication by passing it's token and performing a filesystem 
> operation.
>  
> We will add proper delegation token implementation as future improvement.
>  



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