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https://issues.apache.org/jira/browse/MAPREDUCE-1026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12789044#action_12789044
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Aaron Kimball commented on MAPREDUCE-1026:
------------------------------------------
I am finding a NullPointerException in Shuffle when I run things with the
LocalJobRunner:
{code}
09/12/10 16:08:58 WARN mapred.LocalJobRunner: job_local_0001
java.lang.NullPointerException
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)
{code}
{{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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