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From "Aaron Kimball (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1026) Shuffle should be secure
Date Fri, 11 Dec 2009 00:14:18 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12789044#action_12789044

Aaron Kimball commented on MAPREDUCE-1026:

I am finding a NullPointerException in Shuffle when I run things with the LocalJobRunner:

09/12/10 16:08:58 WARN mapred.LocalJobRunner: job_local_0001
	at org.apache.hadoop.mapreduce.task.reduce.Shuffle.run(Shuffle.java:108)
	at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:358)
	at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:299)

{{reduceTask.getJobTokens()}} is returning null; I can't see anyplace in LocalJobRunner where
the JobTokens object is being initialized. I think this patch is to blame?

> Shuffle should be secure
> ------------------------
>                 Key: MAPREDUCE-1026
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1026
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: security
>            Reporter: Owen O'Malley
>            Assignee: Boris Shkolnik
>             Fix For: 0.22.0
>         Attachments: MAPREDUCE-1026-1.patch, MAPREDUCE-1026-12.patch, MAPREDUCE-1026-13.patch,
MAPREDUCE-1026-14.patch, MAPREDUCE-1026-15.patch, MAPREDUCE-1026-2.patch, MAPREDUCE-1026-3.patch,
MAPREDUCE-1026-7.patch, MAPREDUCE-1026-9.patch, MAPREDUCE-1026.patch, MAPREDUCE-1026.patch
> Since the user's data is available via http from the TaskTrackers, we should require
a job-specific secret to access it.

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