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https://issues.apache.org/jira/browse/HADOOP-6520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12806638#action_12806638
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Devaraj Das commented on HADOOP-6520:
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bq. Shouldn't this be using the code in TokenStorage from MAPREDUCE-1338?
Replicating the code to read the file into this class seems wrong.
Unfortunately, we would need to move the TokenStorage code down into Common...
That's true. I was thinking about doing it in a future jira since it involves
couple of mapreduce jiras - MAPREDUCE-1383 & MAPREDUCE-1338, but okay I will
put that effort in this jira & MAPREDUCE-1432.
> UGI should load tokens from the environment
> -------------------------------------------
>
> Key: HADOOP-6520
> URL: https://issues.apache.org/jira/browse/HADOOP-6520
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 0.22.0
> Reporter: Owen O'Malley
> Assignee: Devaraj Das
> Fix For: 0.22.0
>
> Attachments: h-6520.1.patch, h-6520.2.patch, h-6520.patch
>
>
> For MapReduce tasks, we need not only the task itself, but child processes to
> get the delegation tokens, therefore we need an environment variable that if
> set loads a token cache into the login UGI. The task tracker can set this
> property so that tasks (and child processes of the tasks, such as streaming
> and pipes) have the job's tokens automatically.
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