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https://issues.apache.org/jira/browse/HADOOP-11825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14645012#comment-14645012
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Arun Suresh commented on HADOOP-11825:
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Hey [~steve_l], If you havn't stared work on this, else, I might have a couple
of cycles in the next coming weeks to take a stab at this..
> Move timelineclient Jersey+Kerberos+UGI support into a public implementation
> ----------------------------------------------------------------------------
>
> Key: HADOOP-11825
> URL: https://issues.apache.org/jira/browse/HADOOP-11825
> Project: Hadoop Common
> Issue Type: Improvement
> Components: net
> Affects Versions: 2.7.0
> Reporter: Steve Loughran
> Original Estimate: 4h
> Remaining Estimate: 4h
>
> Having a SPNEGO authed Jersey REST client is a pre-requisite for REST
> operations against YARN applications and any other services in the Hadoop
> cluster which use Kerberos to auth, from code that uses UGI to manage
> identity.
> There's a multiple implementations of UGI+Http bindings in the code, with
> {{org.apache.hadoop.yarn.client.api.impl.TimelineClientImpl}} being the one
> which provides Jersey client integration, and:
> # retry
> # delegation tokens
> # {{doAs()}} support
> It does all of this intermixed with the rest of the code, and is tagged as
> private.
> I propose pulling the jersey support out into a hadoop common .net class,
> tagging as public+evolving, to act as the foundation for any app that needs
> to use UGI+SPNEGO with jersey
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