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https://issues.apache.org/jira/browse/MAPREDUCE-1250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12792918#action_12792918
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Devaraj Das commented on MAPREDUCE-1250:
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This is looking good except for one spurious comment "// storage of the job
token secret" in Task.java, and a white line change in TaskTracker.java.
Regarding sending the token with the task object or not, in the future
(HADOOP-6325), there would optionally be a credential cache that is passed to
the JobTracker during job submission. This cache has to be persisted to support
job recovery. I am thinking that we could add the JobTracker generated JobToken
to the same file. The current approach in the patch is in line with that..
> 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, m1250-12.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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