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https://issues.apache.org/jira/browse/MAPREDUCE-1250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12791696#action_12791696
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Owen O'Malley commented on MAPREDUCE-1250:
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A few comments:
# All of the JobToken classes should be marked @Audience.Private
# I think it may make more sense to store a Token in the Task, especially since
it is Writable and can be easily serialized as part of the Task's write method.
> Refactor job token to use a common token interface
> --------------------------------------------------
>
> Key: MAPREDUCE-1250
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1250
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: security
> Reporter: Kan Zhang
> Assignee: Kan Zhang
> Attachments: m1250-09.patch
>
>
> The idea is to use a common token interface for both job token and delegation
> token (HADOOP-6373) so that the RPC layer that uses them don't have to
> differentiate them.
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